Luminous Landscape Forum

Equipment & Techniques => Cameras, Lenses and Shooting gear => Topic started by: Deardorff on April 15, 2012, 11:31:12 am

Title: Light meter for ISO 1.5?
Post by: Deardorff on April 15, 2012, 11:31:12 am

I am using an incident meter and interpolating exposures to the much lower ISO setting than the meter will show. Reason for asking is my order for Ilford/Harmon direct positive paper that is on the way.

Any incident meters out there that will reliably read ISO 1.5 or 1.6 these days?

Title: Re: Light meter for ISO 1.5?
Post by: Brian Hirschfeld on April 16, 2012, 09:27:47 am

I got some of that paper with my titan pinhole, haven't used it, but did modify it to take a Polaroid 545i and Type 55 film which I have some pictures of here:

http://www.flickr.com/photos/brianhirschfeldphotography/sets/72157629830021565/

I was measuring with an Incident meter as well, and have found that extrapolating for longer exposures does not work because of the reciprocity factor which applies here. Surprisingly, I have found that there are some iPhone light meter apps, which give OK readings for pinhole exposures since they factor in the exposure times, I'll do a little review of this soon on my website. I can give you the name of one I found if you want (or have an iPhone / iPod Touch / iPad)..