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Difference between Slide Film & 35mm?

buchananbchb 13 374 1 England
20 May 2005 1:34AM
Hi I manily use digital, but also film as I think its important to understand both. I have had various types of 35mm film developed and can see the obvious differences with ISO etc... but what difference is there with slide film?

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acbeat 13 14 United Kingdom
20 May 2005 2:33AM
By saying 35mm you mean negative, so the differance is slide film is possitive
SteveCharles 15 2.3k 18 England
20 May 2005 2:47AM
Print (or negative) film produces a negative image on the film from which a positive print is made. Negative film generally has wide exposure latitude making it easier to use as exposure setting is not too critical to a good print.

Slide film (also known as transparency or reversal film) produces a positive image on film, which can be viewed on a lightbox and projected. The advantage with slide film is that it generally has finer grain, richer colour and more contrast than negative film, making for richer, sharper pictures. It has less exposure latitude, though, so correct exposure settings are more critical; a small amount of under or over exposure can be quite noticable.

After using normal print film, looking at your first colour slides is a revelation!

buchananbchb 13 374 1 England
20 May 2005 2:55AM
Oh I see, excellent... I have 2 slide films to develop...My main concern with Negative film was the amount of grain... so I look forward to seeing the results.
spt 14 89 Scotland
20 May 2005 3:58AM
The other advantage of slide film (and the main reason that I started using it) is that it avoids the printing stage, which can cause a very large variation in how your pictures look, and which you have very little control over.

When negatives are printed the brightness, contrast and colour balance of the print are all set by the printing process. Usually this is all done automatically, which often gets a bit confused by pictures dominated by one colour, or with lots of dark or light shades. When your snow photos come back grey instead of white, or you get a strange colour balance it's probably because of the printing, and there's nothing you can do about it to stop it happening next time you take a similar picture (except by going to a better printing lab). When there's something wrong with the exposure on your slides you can't blame anyone else, but you can learn from your mistakes and try to get it right next time.
steveplant 15 56 2
20 May 2005 7:43AM
Another advantage of slide film is colours etc., are richer and it's preferred by publishers should you wish to try your luck.
With regard to grain - that's to do with the film speed, ( iso number), the lower the speed/number the finer the grain. Fuji Provia 100F is good quite quick but with minimal grain.

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