@albireo what do you mean? It hasn't...?
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I think these were the ones we were discussing a few months ago
Technicalities: incident Exposure with a Sekonic 398 III meter set for 200EI; Fomadon R09 1+50 (Kodak agitation) 10 minutes, AP tank, plastic reels; Fomacitro Stop, Fomafix Fixer, tap water wash followed by final bath in distilled water and Fotonal. Raw linear positive negative scans in Vuescan, 16bit/channel, followed by inversion and standard monitor gamma correction. All automatic software processing by Vuescan was deactivated. No other non-linearities, editing etc applied, apart from setting of the black point and resizing. Importantly, the relative tonal response across the spectrum has not been altered in any way.
crop from last sample - central part of the frame
These were taken last Summer and I must admit I haven't used much of the stuff since then. I am just not a big fan of the dreamy highlight haloes (hopefully pretty noticeable in the last sample). I like the ortho spectral response a lot, but when I got into this Foma Ortho I was hoping for a sharp, clean higher sensitivity alternative to Ilford Ortho 80, and this Foma Ortho is not that.
I am not an 'anti-halation' purist at all: in fact, I use a lot of other film with minimal or no anti-halation layer such as Foma 400 in 35mm and Kentmere 400. However, I find this Foma Ortho produces more dramatic highlight glow than the other ones I've tried, in my workflow, and in comparable high contrast conditions. I just haven't felt inclined to pick a roll of it for my photo walk instead of the other stuff I have. Need to reassess it with some more thorough testing.
Maybe a dumb question, but couldn't a person get basically the same effect as an ortho film by shooting a panchromatic film through an red-blocking appropriate filter?
Maybe a dumb question, but couldn't a person get basically the same effect as an ortho film by shooting a panchromatic film through an red-blocking appropriate filter?
Why is it that ortho, panorto and super-pan, films tend to have smaller grain than pan films with the same speed?
Is it that the sensitization dyes absorb some light, so the grain has to be larger to compensate?
Why is it that ortho, panorto and super-pan, films tend to have smaller grain than pan films with the same speed? Is it that the sensitization dyes absorb some light, so the grain has to be larger to compensate?
You also lose more speed using a pan film + filter than just starting out with an ortho film, as a general rule. OTOH you can get much faster pan films so that sort of answers that.
I've not shot true orthochromatic film but at least SOME panchromatic films I think are too sensitized into the red or even near infrared for some use. Putting a red filter on them may make them more or less ortho in response but that's often too much the other way. Thus the popularity of films like Acros, which I love.
I used to love Acros, until P30 came on the scene!
how do they compare in terms of spectral response?
I do wish they'd publish more data, especially reciprocity compensation...
I‘ve sent Ferrania a request regarding reciprocity failure 2 or 3 years ago as they stated on their web page they will be happy to answer any question. Of course no reaction at all
would take manpower, and money.
Of course it would, but a serious manufacturer would do that. It’s nothing fancy but only a basic information
Nice images. Thornton 2-Bath is an excellent developer.
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