Thanks for reminding me, I need to wash the antihal off some Aviphot and shoot IR. That would be really neat.
Thanks for reminding me, I need to wash the antihal off some Aviphot and shoot IR. That would be really neat.Non will ever equal or exceed the performance of the Kodak HIE Infra Red. Tricky to use, but get a good shot you will have an outstanding winner. With no antihalation layer the ghostly edges of a subject in the frame will never be equaled,
I know Aviphot has already been mentioned, but I will say, it is EXTREMELY responsive. Even with the cheapest IR filter I could get for my RB67, it has an extremely obvious wood effect,
Shoot ASAP to avoid fogging of prewashed film in storage.
Shoot ASAP to avoid fogging of prewashed film in storage.
This is different - it's "prewashed" as in that the Anthlihalation layer has been washed away - might be unwise to leave such roll in storage and expect nothing to change. So people say, so I've seen happening to my Superpan 200. Therefore I left the other test rolls to lay about for longer, for more definite answer/insight.
Prewash before development is an entirely different matter altogether. I use it before reversing PET films
But I do want it removed if I want to emulate Kodak HIE look. So I sometimes wash my AH layer away the day before, take my IR filter and go for a forest walk.
Nice aesthetic, hard to be disappointed with it. But it's not for everyday use for sure, plenty of downsides.
I'd buy some Aviphot with no AH layers for this reason alone...
What filter do you all recommend for Ilford SFX? Red 25, Red 29? Looking at the sensitivity curve, going with a full R72 would give you very little room to work with, and extremely long compensation times.
What filter do you all recommend for Ilford SFX? Red 25, Red 29? Looking at the sensitivity curve, going with a full R72 would give you very little room to work with, and extremely long compensation times.
I suggest you look at the websites with articles about each film, R23, R25, R29 and 720 taken of one scene and then the series with other scenes. I use each of the filters, usually only on for each composition based on my accumulated experience with the film I am using. Each scene has is own lighting and depending on what the photographer wants and how strong the Wood Effect is desired. There is no "one size fits all" answer.
I am really torn about how to process this film. I plan to do some major shooting later this spring and SFX will hopefully figure into it.
All my SFX processing so far has been with D76 1+1 and it has been alright. However, I have experimented with homebrewed D23 on other films and I wonder if the suppression of burnt out highlights would be good. Or, the currently revived thread on D96 is making me wonder if it would be useful to tame the contrast. But then I have been gifted a lot of diafine working solution and a couple of unopened powder kits. Looking around tells me that might be right for mushing the grain and bringing up the shadows.
Decisions, decisions.
Surprisingly Ilford Delta 3200 also shows a trace of infrared sensitivity:
Hacienda #13 22.R.R.
Gelatin-silver photograph on Ilford Classic VC FB photographic paper, image size 21.5cm X 16.3cm, from a Ilford Delta 3200 negative
exposed in a Fiji GSW680 camera fitted with a IR720 filter.
Exposure was 8 minutes at f8 to show a trace of Wood effect.
What filter do you all recommend for Ilford SFX? Red 25, Red 29? Looking at the sensitivity curve, going with a full R72 would give you very little room to work with, and extremely long compensation times.
View attachment 369277This was SFX200 in my Pentax 645NII. I used a full R72 SRB Photographic filter, which was MUCH cheaper than Hoya and other big brand names.
And ref. compensation times: I was using 4 stops over the non filtered readings with this film/filter combo, though sometimes I bracketed 4 stops and 5 stops just to make sure. So for instance, at my chosen f stop (f11) I was getting 1/250th without the filter attached, so manually set 4 stops slower at 1/15th once the filter was attached. Hope this helps
I imagine with just a deep red filter instead of an R72 it would simply lighten the foliage but not turn it white like an R72 doesYour image is really stunning for SFX200. Ilford doesn't list a R72 filter in their tech sheet on SFX200, but your image speaks for itself. I wonder what a deep red filter would look like compared to your R72 shot.
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