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An abandoned cabinet full of Kodachrome slides in San Francisco (petapixel.com)
264 points by PaulHoule on Aug 20, 2023 | hide | past | favorite | 103 comments



> Swimmers in Fleishhacker Pool which closed in 1971.

That’s gotta be the biggest swimming pool I’ve seen. I was born in ‘74 (hello, fellow Gen X-er) and we went to various public pools through the summer. The biggest was an “olympic sized” pool 20min driving distance from our house - and this one looks double that from the camera’s perspective.


The original Broad Ripple Park (Indianapolis) Pool was the "largest in the world" at one point (250' x 500'). I knew people who swam in it, but it had been turned into basketball courts by the time I saw the former pool. Shortly after that, it was removed.

The US swimming Olympic tryouts were held there in 1924 and 1952.

https://indyencyclopedia.org/broad-ripple-park/

https://www.youtube.com/watch?v=9ifFaKeimuA


What’s really interesting/sad is there used to be tons of really large pools created as part of depression era recovery act public works programs. Then later, when equal rights law allowed non-whites to use the pools equally, cities and communities closed the pools and filled them up instead of allowing integration.

https://www.kqed.org/forum/2010101893972/why-arent-there-mor...


That’s a trope that doesn’t bear on the Fleishhacker pool closure. There’s been a shift I think in govt spending from things like recreation to social services. If you took the SF homeless and other social services budgets including state Medi-cal funding that dwarfs recreational spending - and this is a shift in allocation over time. And I thought pools were racially integrated historically and it’s when they integrated genders the race panic stupidity came in big time. Especially in south some bad behavior.


My dad explained this to me as well, that most of the places closed up rather than admit minorities. As a result, the communities kind of collapsed.



FWIW this has nothing to do with why this specific pool closed. It fell into disrepair and was used as a parking lot for the zoo.


Sure, Fleischacker pool was underfunded for years and fell into disrepair and then closed in 1971. But why was it underfunded, and why was there not enough money to repair it?

Compare that to Kitsilano Pool in Canada. It was consistently repaired and upgraded over time, a fact well documented in https://en.wikipedia.org/wiki/Kitsilano_Pool


NIMBYism has been ruining America for a century.


The term you're looking for is "racism", and it's been ruining America for a lot longer than a century, and it still is, in fact it's on a resurgence, as we all well know (but some try to deny).


The terms aren’t mutually exclusive


Calling blatant racism "NIMBY" is whitewashing.

And "for a century" is historically incorrect and revisionist, if you were actually talking about racism, which I don't believe you were.

What was the real point you were trying to make? It sounds to me you're offering "NIMBY", which has nothing to do with race, as an alternative theory to counter the parent's point that it's actually racism, which is extremely well documented and not legitimately contested, and has been going on for a lot longer than a century.

Are you literally saying people don't want swimming pools in their back yards? Really??! That's news to me. Or is it actually that they don't want black people in their public swimming pools? That's not what "NIMBY" means, but mutually exclusively exactly what "racism" means.

https://en.wikipedia.org/wiki/NIMBY


Before it was demolished, had the chance to swim in the Moskva pool: https://en.m.wikipedia.org/wiki/Moskva_Pool

At 6,7m gallons (25k cubic meters) volume it was a bit larger and freshwater. The big deal about it was that it was used year round in Moscow. It was quite the experience to swim in it in the winter at -15C. -20C was the official operating limit.



Sutro Baths was just north at the end of Ocean Beach, but half as long:

https://en.wikipedia.org/wiki/Sutro_Baths

It's a bummer there's nothing like these places there today.


It’s a two hour plane ride away, but there’s https://en.wikipedia.org/wiki/Kitsilano_Pool


Nobody should be boarding a plane to swim in a pool somewhere else.


There are the casting pools in GGP, which are quite large, and (given the few people who use them for casting) could be converted into swimming pools.


6.5 million gallons of heated sea water. No wonder it couldn't keep running.


They could have just stuck a nuclear reactor in it. Two problems solved.


Don't go too close to those spent fuel rods on the deep end.



Its fine just wear a lead jacket while swimming on that end


Because the water doesn't block the radiation? uhm?


We had a 120m x 50m public pool around as a kid. It was fantastic, more like swimming in a lake. It got replaced by two stainless steel contraptions (one regular 50m pool and one "play pool"). The play pool has many features that are supposed to be "fun" for kids.

But I remember the thrill of swimming to the centre of the pool and being away from everything. It felt like a real achievement and a little unsafe but in a good way.

I suppose it wasn't easy to maintain and not as "safe".


That was my first thought ok. I thought I was looking at the reflecting pool at the Washington monument or something. I’m completely in awe of the size of that pool.

It actually is closer to the reflecting pool than an Olympic pool

- Olympic pool: https://en.m.wikipedia.org/wiki/Olympic-size_swimming_pool - Reflecting pool: https://en.m.wikipedia.org/wiki/Lincoln_Memorial_Reflecting_... - Fleishhacker pool: https://en.m.wikipedia.org/wiki/Fleishhacker_Pool


I've read the article twice and can't seem to find how they know there are two other cabinets. Did James Martin's family tell them that there were two others his son dumped? Judging by the flyer he posted, he seemed to know there were two other cabinets before he even knew who they belonged to.


It's explained better at this link: https://www.sfchronicle.com/vault/article/lost-1960s-photos-...

A different person found three, but only took one.

Follow-up: https://www.sfchronicle.com/vault/article/san-francisco-phot...


That explains it. Thank you.

> Donnie Weaver, an artist who works with preschoolers, saw the shiny cabinets curbside and stopped short.

> “I thought, ‘Oh, what a cool box! ’ ” he remembered. “Because I like stuff from that era. I picked it up without really looking inside, opened it up when I got home, and thought, ‘Oh, my God.’ ”

> Weaver later ran back with a wheelie cart — the cabinets weighed about 15 pounds each — but the other two boxes were gone.


Yeah, there's a missing sentence or paragraph explaining it, but that was my impression too. The son who went rogue and purged the cabinets put three of them out on the street, only one has been recovered, according to the family. Something like that.


Based on personal experience it seems like his sons would have a general idea of what was stored in the garage or attic. Considering he threw his brother under the bus to the city newspaper, I suspect he had been keeping an eye on those boxes for quite some time.


All I can think of is that something on the cabinet indicating it was cabinet number 3/3? It seems they knew there were two others before the family came forward.


Someone brought either the cabinet or the content of it to the collector. Most likely, they are the source of the number of cabinets.


Dr. Caligari, perhaps?


Quite lucky that that ended up on the street where someone could discover it instead of in a dumpster where it'd almost certainly never be seen again.

As the old saying goes, "one man's trash is another man's treasure." The problem seems to be uniting those two people.


I think Craigslist or Ebay was supposed to solve that problem, but:

- Craigslist is full of tire kickers who just annoy the crap out of you with stupid questions (for free things!!!)

- Ebay is full of scam artists and hucksters

So... the problem persists.


> - Craigslist is full of tire kickers who just annoy the crap out of you with stupid questions (for free things!!!)

In my experience listing your stuff for even a couple of dollars greatly reduces this problem. If I want to get rid of something on craigslist for free I just put it on the curb and post the address.


The equivalent of craigslist here I find that: free = gone by end if day and $0.01 or more means languishing forever.


I avoided eBay for years due to horror stories online. Then I had some junk I wanted to sell for a token amount where I didn’t mind a chance of losing some of the money.

A couple hundred sales later and I’ve only had one problem. eBay sided with me on it, to my surprise.

Maybe don’t list one-off priceless family heirlooms on eBay, but it’s actually quite good for moving a lot of random products in my experience.


Did you make decent money-per-hour on it? My experience is you can sell stuff, but you're talking hours of effort photographing, listing, communicating with sellers, packing, and shipping for a couple bucks-per-hour reward, even accounting for the big-ticket items. It's just not worth it compared to the dumpster. Sucks.


Facebook Marketplace is great for this type of thing. I know many HN'ers hate FB, but it's really easy to move stuff there. You definitely still get tire kickers, but like CL it's local, so you're not shipping.

I just moved cross country and was downsizing, so we put a bunch of stuff up on Marketplace, some free, some for money. The hardest part was communicating dimensions despite listing them specifically. People would show up with a compact SUV (CR-V/RAV4/etc.) to pick up a couch. I just shook my head. I would take about 3 pictures, no editing, write a 2 sentence description, put in the dimensions (if appropriate for the item) and generally within a day have it gone.

Note that I wasn't trying to make money, I just wanted to get rid of things, but that's probably not much different than CL, but could be different than listing things on ebay.

It's still probably not worth it time wise, but the stuff I was getting rid of was still in good shape and could be useful to somebody, so I'd prefer to have somebody get some use out of it instead of just throwing it away.


Our town and some neighboring towns (all suburbs of Boston) have "free lists" on Facebook for this purpose. Membership is nominally restricted to town residents, and picky/annoying takers and resellers become "known" fairly quickly and ignored. Very effective for rehoming stuff that isn't trash but not worth selling.


There's a house down the street from me who had a "free stuff" pile sitting outside for a month or two. Just a few things, but they got replenished over time, and I'm sure the ones that were never picked up went to the trash, so overall it seemed like it worked. We got some nice still-packaged outlets and dimmer switches from it.


When giving away a bunch of stuff while emptying my late parents’ home, we had much better luck on Facebook Marketplace than Craigslist. Way higher percentage of people who showed up when they said they would. Once we switched to listing things there, it went way faster. No idea why there was such a difference.


Paypal is an enabler for eBay scam artists. Try reporting something, it's hilarious, completely byzantine and it will only end when they have wasted enough time to say the case is too old and will be closed.


There are so many people in things for a quick buck that people that truly care keep their treasures hidden.

Some meth head probably took the shelves to the scrap yard for a couple bucks after dumping the slides illegally by the side of the road somewhere.


Yeah. I have a bunch of stuff I'm sure others would treasure--at least for a few days. But I have zero interest in uniting the pile with them if it takes more than a super-token effort.


There’s an interesting album/book that was put together out of a dumpster find: https://www.metafilter.com/145686/Margaret-A-scrapbook-found... Apparently “Chicken John” had taken money to take a vanload of junk to the dump, found a dumpster with some furniture that he thought he could sell, so he swapped out the furniture and junk, and found a scrapbook and candle in the bottom of the dumpster and sat there looking through the photos and poems, etc. I’m not sure if the album is still available, but it’s a great listen (I have the deluxe package from when it was first released).



Kodachrome slides look unreal to modern eyes. My grandfather was a pretty decent amateur photographer so pretty much all of my mom’s childhood in the 1950s is captured in color. We scanned them in and my friends don’t believe that the color pictures on my screen are of my mom when she was 3 or my grandmother when she was in her 20s.


I scanned our family 35mm slides on a good scanner a few years ago and the resolution, even after scanning, is incredible. It took a long time for digital cameras to catch up.


This is why the 70s look amazing. All those film recordings to be remastered over and over again and keep putting out. The 80s and 90s will forever be stuck in lousy low resolution.


You see convenience jump and quality (temporarily) regress over and over in the short time photography has been around. Black & white film and photos look amazing. When color started coming around you needed more light and the quality dropped for awhile. In the 70s you can see faster film become available to filmmakers. This let them move out of the studio with more outdoor footage instead of large studio lights and hand-held instead of being locked on a tripod or crane. In exchange, the quality of the picture dropped. Then again, with digital scanning and vfx. I remember hearing vfx studios would sometimes get away with 1k images for theatrically released feature films if the effect was fast or blurry enough.


> The 80s and 90s will forever be stuck in lousy low resolution.

You are off by few decades though. 35mm film photography and cinematography was still dominating until the end of 90s. Nikon D1 and Canon 1D were released in 1999 and 2001 respectively, and Star Wars EP2 in 2002 was notably first major movie recorded with digital cameras. Pleasantville (1998) and O Brother, Where Art Thou (2000) were early examples of using digital intermediates.


yah, I'm speaking of mostly TV productions, music videos, and that level of video material.

We do have thriller in 4k, other productions too https://www.youtube.com/watch?v=sOnqjkJTMaA.

Now those are interesting examples of digital cameras you provide above; definitely worth sharing and bringing to the table.

Now that I think of it, I think video recordings existed in the 70s too? Like how exactly were TV shows broadcast anyways now that I think about it. The Abba remastered stuff is where my association got set https://www.youtube.com/watch?v=xFrGuyw1V8s, that stuff is incredible.


> Now that I think of it, I think video recordings existed in the 70s too?

The cliff note's version is that the BBC perfected filming live TV. It worked because their analog version of deinterlacing 50 fields per second to 25 frames per second matched European film.

But, in the US, where TV ran at 60 fields per second, filming it at 30fps was just too short of an exposure time. So video was favored in the US.

A lot of pre-digital stuff was shot on film for various reasons. One reason is that 24/25fps film adapts very well to 50 fields per second or 60 frames per second; the consequence is a very minor speedup / slowdown. In contrast, it's a lot harder to adapt video between the two framerates with analog technologies.

Edit: I also suspect cost may have had something to do with it. I suspect that film was cheaper than video in the 1970s, but someone who was around at the time might understand the cost difference between video versus film.

I don't know if anyone "anticipated" HDTV in the 1970s, but back then artists did like putting their videos up on a big projected screen. At least in the 1990s, a lot of content, like Seinfeld and Friends, was done on film; both for the look, and so that it could be remastered for HDTV.


that would be deep if producers anticipated future remasterings and wanted to keep their options open for downstream derivatives that could bump royalties and revenue all along the way. That's some deep thinking if they actively rejected state of the art recording tech that precluded that sort of option.


HDTV experiments started in 1979 with MUSE: https://en.wikipedia.org/wiki/High-definition_television#Jap...

In the US, HDTV came out in the mid 1990s: https://en.wikipedia.org/wiki/High-definition_television#Ina...

It's not "deep" that producers at the time anticipated that re-runs would be broadcast on HDTV. In the 1990s, a lot of producers preferred the look of film over video; or even considered it a better overall medium.


Even today, you’d be hard pressed to find a digital camera with a sensor resolution equivalent to medium or large format film.


Medium format digital is a thing for those with deep pockets (e.g. Fujifilm GFX). Large format, on the other hand…


This is another example of someone’s hobby/collection not meaning anything to people that inherit them. If you are a collector and getting older please give away or sell your collection to someone that cares about the same thing before it’s too late.

There have been innumerable collections of things that other collectors or historians would kill for that have been lost because they seem like junk to the people that inherit it. I have ended up collecting vacuum tubes and I almost weep at stories of warehouses of them being junked. There have been plenty of other things like comic books, LPs, cameras, etc. that faced a similar fate. And while I would never argue that collections of these things are all that important in the grand scheme of things collecting is fun and brings enjoyment. If nothing else selling them can bring in a few bucks.

Losing historic pictures is just tragic. Any given historical image could prove to be important in some sort of research.


Or maybe maintain instructions for how to get it a good home and/or fair price?

(For example, "sell it at ___, and expect ___ money". Or "email ___ at ___ museum/archive, who would like it as a donation someday". Or "if you're up for it, post this prepared inventory list to enthusiast forum ___, and flip a coin on which respondent to give it to".)

This not only means you can enjoy it until the end, but that you don't have to guess/decide when is the right time. You can draft easy instructions/inventory now, and occasionally update them, over hopefully many decades.


The correct market to sell stuff changes too quickly for that to work. And sometimes older people don't even know what markets exist. My father collects some things but has never ever used ebay for example. Plenty of collections might be valuable internationally but not valued locally.

Also in my experience the best collections are for the love of it - collectors often don't care about the value and often don't even know the value. They might care about rareness or uniqueness but not $$$ directly.

Also the value of many collections is unknown until far in the future.


This.

My uncle (Uncle Bill) was fascinated with actors and ended up being good friends with a lot. He took pics and slides for years and years and the Academy of Motion Picture Arts and Sciences asked for them. Well before he died he packed up a significant portion of his collection and sent them off. After he died, we gathered more and sent them out.

Now that my mother is moving in with me and we are cleaning out, yet again, and packing, I've found more slides. Some were from Uncle Bill and others were from my father's side of the family. I had never seen them before. Kinda cool, but not something to keep. So I bundled them up with several other items and off to the historical society they went. Over the past three years, I've shipped probably 10 boxes of all manner of stuff. Family bibles, mortgages, pictures, diaries, correspondence, etc. I've been told that some students have been helping catalog and have found the diaries and correspondence, in particular, interesting. What they were reading was written by my aunt (who married a professor of philosophy and member of the International Red Cross) as she traveled with my uncle, Colonel, around the world.

So glad they are being taken care of and are of interest to at least a few.


I'm an oldish guy with older friends and have dealt with this problem several times. If you have a cherished collection of something, it's very unlikely any of your heirs will be willing to put effort into finding a good home for it unless they can get significant money for it (which is also very unlikely).

You are the best person to find a recipient for your collection. Do it while you still have your wits. Strongly consider having the transfer made while you are still alive, so it doesn't have to go through probate. Don't let your heirs maintain unrealistic expectations of how much they could get for selling the stuff.


> You are the best person to find a recipient for your collection. Do it while you still have your wits. Strongly consider having the transfer made while you are still alive

++ again for this.

Imagine (with some irony): The easiest items for others to pick out -- aside from the occasional curiosity -- might be the most ordinary, recognizable, and commonly-usable items, which is to say also available in stores.

It can be liberating and instructive to assume it will all go to the curb or the trash upon your passing.


I'm reminded of Jack Donaghy on 30 Rock giving away his prized cookie jar collection to Kenneth, the only person he found that would appreciate it.


Kodachrome slides have a different color tint that makes them look real and incredible. It's sad how Kodak went out of business.


Kodak are still in business making photographic film:

https://en.wikipedia.org/wiki/Kodak

The Smarter Every Day YouTuber did a three part series about their factory in Rochester, NY:

https://www.youtube.com/playlist?list=PLjHf9jaFs8XXcmtNSUxoa...


See also: https://archive.is/2KMyD "Consider the Janitors at Two Top Companies, Then and Now"

> Ms. Evans, who was a Kodak janitor in the early 1980s before her rise to executive there and at other leading firms like Microsoft and Hewlett-Packard, recalls a different experience.

> “One thing about Eastman Kodak is they believed in their people,” said Ms. Evans, now chief information officer at Mercer, the human resources consulting giant. “It was like a family. You always had someone willing to help open a door if you demonstrated that you were willing to commit to growing your skills and become an asset that was valuable for the company.”


Sure, they are in business, but I think it's mostly printing and films. From what I understand they sold the camera licenses and patents.

I have watched one part of Smarter Every Day's videos on Kodak. Thanks for linking!


Kodak was always primarily film company, their camera business was an afterthought and fourth tier.


Regarding just color slide film, I think Kodak had stopped all production then resumed with just Ektachrome in 2018.


I was reading an article that they were scaling down all of their color film production, and then the mini-renisance happened right during/after Covid and they have been having a hard time scaling back up ever since.


Bankruptcy is not the same as going out of business. They restructured and still produce color film and slide film, but not Kodachrome. It was a very sophisticated film which could only be processed in a specialized lab and they couldn't stay open with low film demand.

There's a documentary about the last Kodachrome roll developed: https://www.youtube.com/watch?v=DUL6MBVKVLI . Very sad.


Not yet, for example: https://petapixel.com/2023/07/24/kodak-specially-manufacture...

Also, since the price of color negative films are slowly rising, some enthusiasts use Kodak Vision-based films (which is based on cinema film).


Fuji film simulations are not the same, but they're possibly the closest you can get with a digital camera.


By now digital cameras have overtaken digital in resolution. At least for APS.

And slide film never had great dynamic range.

Similar depth of field is obtainable for a similar price, at least on 35mm. MF is really expensive on digital.

But that color. Ohhhh that color.


Eh, a 4x5 film camera can get you about 100MP of non-Bayer resolution if you have a lens that is sharp enough: https://www.kenrockwell.com/tech/100mp.htm

That would require about ~200MP Bayer.


Large format might never be matched by digital. Its trivial to make a larger "sensor" by spreading gelatin on a larger piece of glass.

Thats hard to do with digital.


The best resolution and dynamic range I ever saw was a Camera Obscura set up at Maker Faire over a decade ago.

Then again, that's not really practical for storing and transmitting an image!


People like Ansel Adams would shoot 8x10 as well


I'm now remembering a couple hundred slides I saw scattered on the sidewalk and street on Cesar Chavez near Sanchez in early 2020. I picked up a couple to take a look, but I can't recall what they were of anymore...


The quality of film and Kodachrome in particular is stunning. So much information captured that the scans look great on a modern hi-DPI display.


As far as I know, slides tend to degrade over long time. I've seen some becoming crap in less than 40 years, so it may be advisable to scan all of them. As I also have inherited a big number of them, probably twice the number contained in that cabinet, I'd ask if anyone can suggest an automatic scanner that doesn't cost a fortune.


I’m a layman and know very little about this but for one big job like this wouldn’t you be better off paying a specialist lab to scan these for you if it’s a one time thing?


Scanning mounted slides, cleaning them and adjusting in post is a very manual job. Going through a large collection is going to cost you.


Kodachrome archives a lot better than E6 process slides.


Yup we're talking archival quality for couple of centuries if kept in the dark. Modern E6 is decent but earlier films and especially older Ektachrome processes fade badly.


What a find!

As for Kodachrome's legacy, there's a 2017 movie of the eponymous title starring Ed Harris. While not a documentary, it's still worth seeing.

https://www.imdb.com/title/tt1880399/


Kodachrome

They give us those nice bright colors

Give us the greens of summers

Makes you think all the world's a sunny day


Beautiful pictures. I would have loved to have shot Kodachrome before Kodak stopped manufacturing it; the closest we can get today is Ektachrome (which has also been reformulated over the years).


It is kind of funny just how different Kodachrome and Ektachrome look though. To me Ektachrome seems cold while Kodachrome always looks like the 1970s in spite of the fact it was preferred by archivists because it remains stable in storage so well.

Velvia was another film stock that seemed to have an outsized personality.


I still have some Kodachrome slides and when you get the exposure right, and the scene is within the dynamic range ... it's something quite magical! Should scan them and put them online sometime...


Kodachrome required a lot more equipment and chemicals to develop. There used to be a Kodak processing plant in Palo Alto on Page Mill Road. As a high school student, I applied for a job there and got a tour. I just remember a lot of equipment in dimly lit rooms. It was a big facility. I didn’t end up getting the job and ended up working as a page at the pubilc library.


Ektachrome got a lot better over the years (starting with around the Lumiere era in the 90s) and, really, it was Kodachrome 25 that was special--which was obviously ridiculously slow by modern ISO standards.

Always like KC 25 a lot more than the colors of Fuji's Velvia which while nominally ISO 50 was really about the same effective speed.


Yes the saturation, detail and dynamic range is stunning. Digital is great in its own way, but never quite achieves the 'look' of slide.


Yeah. It's all in the eye of the beholder, but I find Kodachrome/Ektachrome's saturated colors very aesthetically pleasing, while similarly saturated digital photographs come off as sterile and overly processed (the kind you'd see on a hotel's website).


The other day I found an unused Kodachrome film I'd forgotten I had. Kodachrome 64 is my all time favourite film.


"Yeah, we found them in this weird old Armory place. Was just going to go through them with Mom."


ive always thought there was a market for these kinds of photos as a tv channel. some background muzak, slideshow presentation and block programming. something to fall asleep to.


Cry yourself to sleep over? I see these pictures and they just make me sad for what has disappeared.


There are two comments we should learn from this story. I've advocated them for years and I've been dismayed that even professional photographers and those in the imaging/scanning business don't advocate them as mantra thus they haven't become common practice.

First, don't ever throw your slides or film negatives away as you may need them again (if you're sure you'll never want them again then give them to relatives or failing that to those who collect and archive old photos). If you have scanned them then pack them away sealed from dust, dirt, high humidity and high temperatures.

Second, if you are scanning negatives or slides then never skimp on the resolution, if you do and you no longer have the originals you can't rescan them for more detail (the large size of high resolution scans is not an issue these days). The classic error many make is they scan say a school or army platoon photo at low or medium resolution and it looks OK on the screen, later when they have to select an individual from the group and need to enlarge the image it's too pixelated to use. (It's very disconcerting for say a family who has lost a soldier in war and they can't recover his photo.)

A Kodachrome slide under good conditions has a limiting resolution of around 100 lines/mm and a 35mm negative or slide is 24x36mm which means the scanned image has to have at least a horizontal resolution of 3600 pixels to extract all the picture information. 100 lines/mm resolution means you need set your scanner to at least 2500 px per inch. In fact, ideally you should scan at double that rate to allow for the Nyquist factor—like your audio CDs which sample at 44kHz to get 20kHz audio reproduction, you should do the same with photo scans. Sometimes, scanning at the Nyquist rate (here, 5000 px per inch) can be difficult so you should set the scanner to as high resolution as is practicable).

Even today, scanning is fraught with problems that remain unclear to many. As mentioned, the biggest is the lack of information and I blame the professionals for not adequately informing the public.

The next is the lack of good scanners and it's a big problem—and Kodachrome slides have special requirements when scanned. Ideally, slides should be scanned at a color depth of more than the standard 8 bits per channel (24-bit) to stop color banding in sky areas. (Banding shows up as annoying discontinuities in colors that are close but range over a gentle gradient such as sky areas and it's caused by insufficient bits). Kodachrome has enough color dynamic range to make banding obvious. Banding is stopped by going to 48-bit color depth but unfortunately many scanners cannot support it (hence my comment about the lack of good scanners). It's also an excellent reason why you should keep your original slides and negatives.

Also, Kodachrome slides are particularly difficult to scan because they are intrinsically different to other color films in that they contain residual silver and this throws the scanning out. The better scanners allow for this and they also come with specialized software to overcome the problem.




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