http://www.irstudio.cz/en/ A nejaky jeho popisek cs http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-45891 Bjrn Rrslett, one of the most famous IR-shooters recommend the Nikon 105 VR for IR, and other recommend Nikon 35–70 f. 2.8, so I think the list is right. Have both lenses, but have not tryed them for IR yet, have just read this from Bjrn Rrslett today. I can really recommend Nikon 18–55 (non VR) – it is top-top for IR at 18mm. Have also tryed the Nikon 14–24, but I got a lot of flare/ghosting on my Nikon D40 IR converted camera. Mon, 07 Jun 2010 19:21:11 +0200 45891 http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-45889 [7] Bernard: hi berdnard, have you adjust the auto focus setting on the canon body, DSLR still recognized autofocus based on the visible light Tue, 01 Jun 2010 10:45:50 +0200 45889 http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-35961 I'm not using Sigma 12–24. Canon 10–22 works well. Wed, 03 Mar 2010 14:34:02 +0100 35961 http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-35882 Hello, I have a strange experience with the Sigma 12–24mm. It works very well on my full frame 5DII. I have a Canon 500D converted with a 700 nm filter, and the same lens is totally out of focus and correct focus cant be achieved, at infinity, the focus is at about 1m. I would like to know if someone has seen the same behaviour ? Sun, 21 Feb 2010 12:34:11 +0100 35882 http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-35862 add Nikkor 14–24 to the recommended list – it's the best IR lens I've seen.. I still haven't found an easy way to put a filter on the rear lens, but works perfectly with modified cameras.. Tue, 09 Feb 2010 12:04:24 +0100 35862 http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-18460 I've just been testing a Canon EF-S 60 mm f2.8 Macro USM lens. At f16, I think I got a hotspot. With a wider aperture, I didn't see any. It wasn't a very extensive test, just standing outside the camera store. Your mileage may vary. Tue, 11 Aug 2009 13:48:12 +0200 18460 http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-4 Hi Bart, I think that depends mainly on construction of the lens and coating, not if hot mirror is removed or not. I pray somebody do obvious test. Sun, 28 Jun 2009 10:29:53 +0200 4 http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-3 i read something about lenses for IR somewhere, which i think is very important. one cause for hotspots on a lens can be the hotmirror, as it reflects the light back, which the coatings aren't made for. removing the hot mirror for those lenses solves the hotspot problem, so there probably are some lenses in here which don't give a hotspot when the camera is converted, or lenses missing which only give a hotspot when not converted. Sat, 27 Jun 2009 20:01:19 +0200 3 http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-2 Thanks for completion Ákos!;) Sat, 27 Jun 2009 19:55:01 +0200 2 http://www.irstudio.cz/en/index.php?text=4-lenses-for-ir#comm-1 The Nikon version of the Sigma 105 f2.8 macro EX lens is very poor for IR (The worst I've ever met, actually). The 35–70 f2.8 AFD Nikkor also gives a hotspot and has low contrast. Fri, 26 Jun 2009 19:51:35 +0200 1