Infrared Filters

SAShruby

Member
Joined
Feb 22, 2005
Messages
47
Location
Vancouver, B
Format
Multi Format
Since I'm in Large format, I guess I'm going to post here. There are some IR filters on Ebay from China. I'm looking for 95mm one in 720nm range. They go usually for $100 or so. Did anyone had a chance to test those?

Are they worthed those bucks?
Thanks
 

keithwms

Member
Joined
Oct 14, 2006
Messages
6,220
Location
Charlottesvi
Format
Multi Format
$100 is very inexpensive for an IR filter of that size. If they are good then it's quite a good deal. I think I dropped 2 or 3 times that much for a 77mm filter with similar cutoff, from Hoya.

I would try to find out whether the filter is plastic or glass based, whether it has any coating, whether the threads are plastic, and perhaps you can ask them for a transmission spectrum.
 

nickandre

Member
Joined
Oct 22, 2007
Messages
1,918
Location
Seattle WA
Format
Medium Format
I found a 58 odd millimeter 720mm for $25 on the bay but I'm told that's rare.
 

Mike1234

Member
Joined
Jul 6, 2009
Messages
1,908
Location
South Texas,
Format
4x5 Format
paul_c5x4 said:
Yes please - I've got a gel filter that is starting to show some damage, so it could do with being replaced.
Click to expand...

I'll research prices and sell it at a substantial discount. I don't think many of the gels I have were ever used... at least they look brand new with no water damage or scratches. Some are still sealed.
 
You must log in or register to reply here.
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…