View Full Version : SFX 200 (120) - can it be used normally?

02-26-2011, 05:47 PM
Hi :)

Yesterday I was given three rolls of SFX 200 (120) and would like to shoot them. However, I don't have any experience with infrared, have no filters, and am not interested in buying any :whistling: I'd like to shoot this film as just plain B&W.

It expires this month, so what ASA should I rate it at? Also, I read a long time ago that IR film requires careful handling: load in complete darkness, tape over the film door window, be careful when loading into reels, etc, etc. Is this the case, or can I "cut corners" as with regular B&W film?

Thanks in advance

02-26-2011, 05:50 PM
Oops, heh heh .. should I just follow the directions here? http://www.apug.org/forums/forum42/82710-red-filter-absolute-requirement-ilford-sfx-200-infrared.html

Sanjay Sen
02-26-2011, 10:01 PM
I have shot this film at box speed with and without a red filter to get good results. I usually load in subdued light, and have seen no ill effects. I think loading in total darkness applies to "true" IR films, which this one is apparently not.

02-27-2011, 05:47 AM
SFX is Ilford HP5 with some different dyes to give the infra-red sensitivity. You can use at 200 ISO as a normal b&w film. It has the grain of HP5. I process like FP4 (120 film is 9 minutes in 1+6 Ilfotec DDX 20C) when I do this but you need to play around as the dev time depends on how you expose, agitation, temperature, etc.

Steve Smith
02-27-2011, 06:55 AM
There are some pictures in my gallery taken with SFX without a filter. I wouldn't normally use it like this but we had just had a lot of snow and I wanted to go out and record it. SFX was the only film I had at the time.

Here is one: http://www.apug.org/gallery1/showimage.php?i=56328&catid=member&imageuser=12229


02-27-2011, 07:39 AM
Thanks for the replies. I pushed it to ISO 400 and developed it in ID-11 for 16 minutes.

POW! Great contrast! :D

04-12-2011, 01:49 AM

You can get the data sheet from the Ilford Photo Website. That might have some info on using it unfiltered. I think it looks great shot at 200. I didn't know it was just HP5 with extended red sensitivity.