R72 & 25A?

phototalk · 22nd February 2005

I would like to ask the experts here is the R72 filter for IR also known as 25A?
Thanks!

eawtan · 22nd February 2005

Originally Posted by phototalk

I would like to ask the experts here is the R72 filter for IR also known as 25A?
Thanks!

No, the R72 is an ir filter, the 25A is a red filter. Both have different cut-off range. The R72 is almost black, the 25A passes alot of visible light.

phototalk · 23rd February 2005

Thanks eawtan for the info.

22nd February 2005	#1
phototalk Member Join Date: Oct 2003 Posts: 165	R72 & 25A? I would like to ask the experts here is the R72 filter for IR also known as 25A? Thanks!

23rd February 2005	#3
phototalk Member Join Date: Oct 2003 Posts: 165	Thanks eawtan for the info.