Konica IR shooting

[thebanana]

I have an opportunity to shoot at a large indoor greenhouse this weekend. I've been thinking of trying some Konica IR film in my Mamiya 645, but this will be my first attempt at IR, and was wondering if anyone has any advice for me in this regard? The location is well lit, but I'd be most interested in advice around what ISO to use, what pitfalls to avoid etc. Thanks.
John

 

[Nige]

The recommended exposure was 1/60 @ f5.6 with a 25A (red) filter in bright sunshine. I used to use 1/30th mostly (or variations of eg 1/15 @ f8) then develop less than recommended. If I wanted to take a shot without the filter, then meter at about 32iso. I raely metered withthe filter, just added exposure when I thought prudent Inside a greenhouse I would image you could meter outside, then inside and use the stops difference as a guide to how much extra exposure to give over the suggested. That's what I'd do.

 

[Shmoo]

I've used the Konica 750 IR film in my 645E a number of times. I usually set ISO at 50, use a 25 red filter and meter through the lens. I usually add an additional stop for insurance. Works great!

Oh yeah, use a tripod...a necessity!

S