Hiya all.
Does anyone know where I can download an extended exposure chart I can print off to put in my camera bag.
I’m particularly interested in the times over 30 secs and reciprocity failure.
I will be taking exposures of over 30 mins.
Can anyone help?
Kevin.
Extended exposures
Moderator: Keith Tapscott.
Re: Extended exposures
There is no sigle chart. Each film has it`s own reciprocity failure. Check the tech data at Kodak: http://www.kodak.com/global/en/professi ... ndex.jhtml , Fuji: http://www.fujifilm.co.uk/film/film.html , and Ilford: http://www.ilfordphoto.com/products/pro ... onal+FilmsNivek wrote:Hiya all.
Does anyone know where I can download an extended exposure chart I can print off to put in my camera bag.
I’m particularly interested in the times over 30 secs and reciprocity failure.
I will be taking exposures of over 30 mins.
Can anyone help?
Kevin.
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- Posts: 100
- Joined: Thu Jan 12, 2006 7:19 am
- Location: BRENTWOOD,Essex,(UK)
One 'reciprocity failure' effect you might experience with LONG time is an increase in contrast on negative materials-it is the opposite to the effect of very SHORT times such as fast flash where the negatives need extra development to combat lower contrast.
Got COMPUTERISED and 'slightly Digitised Pentax K10D' but FILM STILL RULES !