Efke Ir 820

[vinny]

Is there a difference between the B+W 092 and the Hoya R72 (RM72?) filters? There seems to be a pretty big price difference (B+W cheaper).

there is. The results will be different too.
B+W 092 Cutoff at 650nm
RM 72 Cutoff at 720nm it only passes infrared rays above 720nm.

There's another post going with an example using the hoya on the ir820. If i had to do it again, i'd get the hoya instead of my 092. I think you can get a cokin type version from freestyle photo that would be good to test with if you don't want to drop hundreds of bucks.

vinny

[walter23]

Okay, thanks. Looks like I'm dropping big bucks on the stupid hoya then. (On the bright side I've seen nice stuff done with a digital SLR using this filter, so I can go that route as well).

[vinny]

oops

[Diane Maher]

I had good images with the Maco 820c IR films using a Harrison & Harrison 88A filter.