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zsas
09-03-2012, 03:48 PM
Instead of starting a new HIE thread, I am continuing an old one.

So I've the below: 35mm RF (Yashica Lynx 14E), cold stored exp 2008 HIE, R72 Hoya 67mm thread, step up ring 58mm to 67mm (this is bc the Yashica is a 58mm and the 67mm can also go on my MF camera - two birds one stone....).
http://i541.photobucket.com/albums/gg361/47Frogs/photo-74.jpg

I am going to use what Mick says above.

Question, so if my object was 3.5 feet away, would I just focus normal with the RF:
http://i541.photobucket.com/albums/gg361/47Frogs/photo-76.jpg

Then turn it so the 3.5 foot mark is in the mark with the 'R'??? See below:
http://i541.photobucket.com/albums/gg361/47Frogs/photo-75.jpg

polyglot
09-03-2012, 06:32 PM
That's the theory, yes. Depends a bit on the spectral sensitivity of the film (HIE will probably use all of that correction).

With other films (IR820) sensitive only to the shorter IR bands, often (depending on the lens) no correction is required.