Kodak T-Max 100 Sheet Film Long Exposure
I shall be attempting some coastal long exposure this week with Kodak T-Max 100 and a 10 stop ND filter.
Exposure times are estimated to be between 2 - 5 minutes.
Does anyone know if there is any contrast increase with this film when using long exposure times. I thought I read somewhere that Kodak says no but cannot seem to find where I read it.
Ian
Re: Kodak T-Max 100 Sheet Film Long Exposure
Ian,
For that length of time you can expect about a 2-1/2 stop increase in contrast. There are charts floating around giving reciprocity and increase in exposure contrast. Try Unblinkingeye web site, and also Barnbaum ARt of Photography book.
Mike
Re: Kodak T-Max 100 Sheet Film Long Exposure
Quote:
Originally Posted by
Michael Rosenberg
Ian,
For that length of time you can expect about a 2-1/2 stop increase in contrast. There are charts floating around giving reciprocity and increase in exposure contrast. Try Unblinkingeye web site, and also Barnbaum ARt of Photography book.
Mike
Thanks Mike. That's more than I had hoped for. I know Fuji Acros would be the best choice here but I only have FomaPan and T-Max 100.
I Might have to rethink this one through
Ian
Re: Kodak T-Max 100 Sheet Film Long Exposure
You could always adjust development (or wait for the right lighting) to lessen contrast.
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Re: Kodak T-Max 100 Sheet Film Long Exposure
Re: Kodak T-Max 100 Sheet Film Long Exposure
I don't make really long exposures that often, but when I do it is one of the rare times I shoot two identical negatives. Develop the first one and decide if I need to cut more time off it to tame the contrast. The first one will get 15 to 20% less time than normal.
Re: Kodak T-Max 100 Sheet Film Long Exposure
I like this idea. If you're going to shoot this regularly, you could work up some test curves at the new exposure.
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Re: Kodak T-Max 100 Sheet Film Long Exposure
Done lots of long (longer than you are talking about) exposures on T-Max. Follow the reciprocity chart and findings and cut development for 15-20% every extra stop given for correction. Bracketing and multiple shots per scene is definitely recommended.
Re: Kodak T-Max 100 Sheet Film Long Exposure
Quote:
Originally Posted by
Jim Jones
Thanks Jim, will go and have a read
Re: Kodak T-Max 100 Sheet Film Long Exposure
Quote:
Originally Posted by
Kevin Crisp
The first one will get 15 to 20% less time than normal.
Is this to compensate for the increase in contrast due to the length of the exposure