Athirill, I respectfully disagree.
Any slide film will show less grain, when scanned, then negative film, in my experience. I don't say that that will result in less perceived graininess when actually printed on paper, but at the scan stage you bet negatives give an impression of more grain. I never scanned Ektar though, and I mostly scanned Ferrania negative film which is high-grain even for a negative, but, in general, everybody agrees that negatives tend to show grain more when scanned, which is also what I gather from things I see on the internet.
The thing about exact colour reference may be improperly expressed but I think it's common knowledge. The publishing industry, before the advent of digital, preferred to work with slides because it's easy to have an "exact" match between the colour in the slide and the colour in the print: different technologies and different gamuts and different supports are involved, so when I say "exact" I mean there was less head scratching involved by the printer when he has to figure out a filtration.
That is: matching print with the slide, not matching print with the subject.
If you put a colour chart on the scene, and then you match the colour chart (the subject) with the print, I suppose that negatives are not more complicated than slides, and they can actually allow a more precise work.
If you don't put a colour chart on the scene (so we are not talking a tissues catalogue here, rather imagine the pictures published by let's say the National Geographic) you don't have an exact reference to the colour of the scene.
If you use negatives the printer has a large number of "filtrations" to chose from, and lots of head scratching to do.
If you use slide film, the printer tries to match the print to the slide and he has a very good and precise starting point to work from in adopting the colour rendition of the film to the colour rendition of the printing technology he uses.
I have never worked in the printing industry but that's what I read in print and what seems confirmed by the historical use of slide film by magazines like the National Geographic.
PS I don't know if the guy has a "vested interest" because I don't know him personally. People tend to express opinions sometimes in a straight and squared way but that doesn't necessarily means, in itself, that they have an interest. Or should we say that Umut has a vested interest in Leica material?
Resolution is a tough one, especially if your comparing to B&W films, because there are literally thousands of developers that balance off resolution and sharpness in different ways, to give you what you want.
Originally Posted by Athiril
Exact colour reference is complex, because what the film renders, may not actually be correct in fact it's almost always incorrect, because no film has perfectly equal representation of the different colours. Even batch to batch with the same film, there will be mismatches in the colour balance, which is why professionals used to buy massive amounts of the same batch of film, because changing batches in a shoot would leave slightly different colour balance. Yes you can balance your scans and prints to the film, but is the film actually correct. It's one of the reasons I like B&W, I don't need to worry about colour balance
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MF 60mm EDUPE slide E6
What about 60mm E6 ISO 60 KODAK EDUPE? Got like 4 cans (100ft/30m/~40rolls each) of it, more than I can ever use on my own. I am in Europe tho. Maybe You can look on ebay since EDUPES are cheaper.
What I have used from it is awesome in XPRO C41 and in E6 I just apply a B&W warming filter and gives me awesome color. Rolling Your own is always cheaper, either in MF or 35mm.
Just PM me if interested or Try ebay for CON US.
If the printer can match the print to the film, he's a happy camper for most purposes. Films don't vary so much in colour rendition.
Originally Posted by wogster
Imagine you have to print a picture of a certain temple in Bangkok. The wall is "reddish", somewhere between red and purple.
With a slide, if you match the red of the slide to the red of the print, you know that you were very close to the red of the temple. Nobody is going to phone you saying "hey, I know that temple, the colours are off!".
With a negative, if you don't have a "reference" (a colour chart or, let's say, a white object, or the blue of the sky) you have no clue about the colour of the wall. You can print the wall orangish, or purplish, or reddish, I really mean three different colours, and it would be perfectly plausible as a paint for a wall. Trouble is, somebody might phone you saying the colour of the temple in reality is really different.
You need really precise colour matching only when dealing with art reproduction, or printed catalogues. For this kind of work you need all the tricks of the craft: colourmeter, or known light temperature of the source, colour charts etc and the tricks have to continue for all intermediate steps up to the final print.
Mostly, books and magazines publish things for which an exact reproduction is irrelevant, but a "close enough" one is of paramount importance. Flowers, known colour of cars (think Ferrari), known objects (think Coca-Cola) must be rendered with that sufficient closeness or they immediately appear "false" to those who know them. Everybody knows the Coca-Cola red but when you have to print Milan cobblestones or a certain unknown flower you could filter it well off mark.
The quotation said that slide film gives an exact colour "reference" and I think it meant just what I expressed above, not the exact colour, but a fast and accurate enough colour rendition for most purposes and situations.
PS I hope I didn't insist on the argument too much, I just wanted to express myself more clearly.
I just want to say I'm terribly sorry for the post I made earlier, it was not my intent to derail this, simply something I thought might be worth looking into.
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I have some out of date, various minor bands 35mm slide film that has been refrigerated or frozen its whole life. PM me if you are interested and we can talk details.
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I leave the digital work for the urologists and proctologists.
Hey guys, just wanted to say it's very interesting reading where this thread has led to.
I'll just say that slides (in general, not all) tend to saturate one color more so than another.
But I like the look and I don't see a huge need to be technically correct, after all we are shooting for fun/creativity rather than being technically perfect.
Okay, so some of us have to be perfect because of jobs/other reasons :P . But for the rest of us let's have fun and get out and shoot!
BTW, Thanks for all the recommendations. I'm going to try out a couple types I bought. Elite Chrome and Sensia. Have any experience with these?
Elite Chrome and Sensia are both great films, I like them both better than any of the currently produced film stock... I want Astia back.
We don't need 3 Velvias.
+10000! (Ok, I never used Sensia; I'm agreeing about wanting Astia back and not needing three versions of Velvia.)
Originally Posted by EASmithV
I could be happy with E100G too, which I like almost as well as Astia. Really good film - too bad about all the Kodak (for that matter I've always found E100VS more reasonable and less finicky than Velvia too.)
"Common knowledge" is very dangerous; it should ring a bell right away. That's because very usually, "common knowledge" is a synonym for "urban legends", just like in this case where, of course, it has SOME truth the myth is based on.
Originally Posted by Diapositivo
Publishing industry used extensively both slide and negative films. They both had their points and different purposes. But the myth slides were "preferred" live on because it is repeated everywhere as a "common knowledge", just like the Earth is flat, everyone KNOWS that!
In fact, slide films have huge inherent color errors and the whole media is based on those errors! By having distorted colors (due to both RGB curve shape mismatches and unwanted dye absorptions not corrected due to lack of masking), they look more interesting and "nicer" than neutral ones to many people. This is one reason why people use slide films, they give "good color", something you cannot get with neutral color negatives with built-in color correction, or neutral digital capture that may look "dull".
Last edited by hrst; 05-22-2012 at 03:46 AM. Click to view previous post history.