Quote:
Originally Posted by DrPablo I ask just because Fuji is the only company other than Kodak with as comprehensive a product line. I guess EIR is a sort of novelty film, but Fuji is the only company that could put out an equivalent. As for an HIE equivalent, neither SFX nor the Rollei IR is anything close to HIE. I guess the Maco/Efke 820 is closer. |
I am not sure about the sensitations of all the BW IR film that were on the market 40 years or so back in time. From then on the HIE was (is) the most far reaching in sensitation.
Concerning the 2007 Maco IR 820 vs the Rollei IR. I know about the sensitation of the former only by an oral description of its values released by Maco. But any major differences seem rather to be down at log(sens) of -2.5 something.
So when comparing IR films by graphics it is always good to look not only at the wavelengths but at the the log values too.
Furthermore there are different types of graphics. The least you can learn from are those wedge spectras. The best is to keep within one manfacturer. But this makes comparing a bit dull…
Keep to photos. But then one would have to state lighting, type of vegetation (s. a post above).
Best would be several films on some (described) subject, same time.