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In Search of Older Glass for IR
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<blockquote data-quote="BackdoorArts" data-source="post: 489551" data-attributes="member: 9240"><p>Thanks, but the list is worthless, IMO. It's really a hot-spot index and says nothing about how well they actually transmit IR light. And I've been able to convince the folks at Kolari that even the ones they list as "Good" have serious issues under the right circumstances. I'm working with my brother to devise a proper hot spot test for lenses and we can hopefully put together a proper database for it - but that's gonna take some time.</p></blockquote><p></p>
[QUOTE="BackdoorArts, post: 489551, member: 9240"] Thanks, but the list is worthless, IMO. It's really a hot-spot index and says nothing about how well they actually transmit IR light. And I've been able to convince the folks at Kolari that even the ones they list as "Good" have serious issues under the right circumstances. I'm working with my brother to devise a proper hot spot test for lenses and we can hopefully put together a proper database for it - but that's gonna take some time. [/QUOTE]
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