http://www.dslreports.com/forum/r22633056 en Mon, 30 Nov 2009 18:26:38 EDT Mon, 30 Nov 2009 18:26:38 EDT http://www.dslreports.com/forum/remark,22684477 JRSlater : I've got a couple but can't remember what brand they are, I think they are Hoya, and it's been my experience that like anything else, you get what yoiu pay for. ;)
--
»www.jrslaterphotography.com/
]]> http://www.dslreports.com/forum/remark,22684477 Fri, 10 Jul 2009 08:27:01 EDT http://www.dslreports.com/forum/remark,22635543 anon : here;s hoya;s ir page:

»www.hoyaoptics.com/color_filter/···ting.htm

noting the graphs, showing the curves comparable to the normal hoya / nikon numbering system, where the filter number is the first two digits of the nm at 50% transmittance.
(example L39 is at 50% transmittance at 390 nm)

]]> http://www.dslreports.com/forum/remark,22635543 Tue, 30 Jun 2009 16:12:57 EDT http://www.dslreports.com/forum/remark,22633056 mhhack : Hi - Does anyone have any experience with IR filters? The standard seems to be the Hoya, but several others are available, such as Kenko and Suntec. I's appreciate any information you might have.]]> http://www.dslreports.com/forum/remark,22633056 Tue, 30 Jun 2009 09:46:28 EDT