Hi there I want to shoot some BW infra red films. Can anybody give some info about what's the Film-speed to be set in the camera?

Are there standard speeds and can yuo push pull the roll?

How does it differ in developing time from normal BW films

(I have been shooting TMax 100 and developing in D76 1:3 for 9.15 Min in Ice cold water) Thanks

-- Shreepad (middlegray@hotmail.com), June 15, 2000

Answers

The best advice for a new Kodak HIE shooter is to use the recommended exposures (with a 25A filter) that come with the film. Then develop in your favorite soup using the recommended time/temp for Plus-X. Unlike conventional films, dense negatives can be printed for great effects. I've found that a TTL meter is not always accurate with this film because of the meter's response in the red-infrared region.

Also, Laura White's book on IR is probably one of the best available. She mostly uses Kodak HIE, but does present Konica 750 information.

Kodak has discontinued HIE in 4x5 sheet film. A real shame since a found this out a week after I bought a sheet film camera primarly to get big, less grainey HIE negatives.

-- Gene Crumpler (nikonguy@worldnet.att.net), June 15, 2000.

I meant "in order to get bigger, less grainy "PRINTS"

-- Gene Crumpler (nikonguy@worldnet.att.net), June 15, 2000.

Gene, Maco IR820 is available in 4x5, as well as 120 and 35mm. It is available from Cachet. I havent used enough of it to give an opinion on it yet, but the people on the infrared listserv seem to like it.

-- Fritz M. Brown (brownf@idhw.state.id.us), June 15, 2000.

It depends on where you are. Here in Singapore, I use ISO-1000 (yes, one thousand), meter TTL thru' a 25A filter and bracket by +/-1 stop. Most of the time, the frames exposed at ISO-1000 are bang on. I develop in D76 stock or D76 1:1 at 24-25 deg C. Try starting out with D76 1:1 at 20 deg C for 11-12 minutes - it has always worked for me.

-- Sriram (r_sriram@ziplip.com), June 15, 2000.

What is URL for the IR forum?

-- Gene Crumpler (nikonguy@worldnet.att.net), June 20, 2000.

The Massive developement chart gives good developement times for several IR-Film. Also have a look to www.pauk.de for IR-film- developement times and filter factors-----I use them. till than Dr.Dirk drüten

-- dr.Dirk Drüten (praxis@kg-dinslaken.de), July 01, 2001.