Howdy, folks. I am still looking for input on "hot spots" and near-infrared shooting on unconverted Canon digital SLRs -- that is, using a glass filter such as a Hoya R72 or using a Wratten gel such as an 89B. Here's what I have so far; I am looking for feedback on any other lenses. Sample hotspot image: Burgruine Landskron, Oppenheim, Rheinland-Pfalz, Germany Canon 5D, EF 16-35mm f/2.8L @ 16mm, f/8, 15 seconds, ISO 100 Suitable for IR (no hot spot): Canon EF-S 10-22mm f/3.5-4.5 Canon EF 17-40mm f/4 L Canon EF-S 17-85 f/4-5.6 IS USM Canon EF 22-55mm f/4-5.6 USM Canon TS-E 24mm f/3.5L Canon EF 24-70mm f/2.8 L Canon EF 28-135mm/3.5-5.6 IS Canon EF 28mm f/2.8 Canon EF 50mm f/1.8 MKI Canon EF 50mm f/1.8 MKII Canon EF 70-200mm f/4 L Canon EF 70-300mm f/4-5.6 IS Canon EF 75-300mm f/4-5.6 IS Canon EF 100-400mm f/4-5.6 L IS Canon EF 100mm f/2.8 Macro Canon EF 135mm f/2 L MTO 500mm f/8 Sigma 400mm f/5.6 Tamron 28-300mm XR Not suitable for IR (hot spot): Canon EF 15mm f/2.8 fisheye * Canon EF 16-35mm f/2.8 L # Canon EF-S 18-55mm f/3.5-5.6 Canon EF 20mm f/2.8 Canon EF 20-35mm f/3.5-4.5 USM Canon EF 24-85mm f/3.5-4.5 Canon EF 28-70mm f/2.8 L Canon EF 28-105mm f/3.5-4.5 Canon EF 35mm f/2 Canon EF 35-80mm f/4-5.6 Canon EF 50mm f/1.4 Canon EF 50mm f/2.5 Macro Canon EF 70-200mm f/2.8 L IS Canon EF 70-300mm f/4.5-5.6 DO Canon EF 85mm f/1.8 Tamron 17-35mm Tamron 19-35mm Tamron 70-300mm Macro Tokina 12-24mm If you have information on whether the following lenses are suitable or unsuitable for IR digital photography using an IR filter, please let me know: ZOOM Canon EF 28-80mm f/3.5-5.6 II Canon EF 28-90mm f/4-5.6 II USM Canon EF 28-90mm f/4-5.6 III Canon EF 28-105mm f/4-5.6 USM Canon EF 28-200mm f/3.5-5.6 USM Canon EF 28-300mm f/3.5-5.6L IS USM Canon EF 55-200mm f/4.5-5.6 II USM Canon EF 70-200mm f/2.8L USM Canon EF 100-300mm f/4.5-5.6 USM PRIME: Canon EF 14mm f/2.8L USM * Canon EF 24mm f/1.4L USM Canon EF 24mm f/2.8 Canon EF 28mm f/1.8L USM Canon EF 35mm f/1.4L USM Canon TS-E 45mm f/2.8 Canon EF 50mm f/1.0L USM Canon EF 50mm f/1.2L USM Canon EF-S 60mm f/2.8 Macro USM Canon MP-E 65mm f/2.8 1-5x Macro Canon EF 85mm f/1.2L USM Canon TS-E 90mm f/2.8 Canon EF 100mm f/2 USM Canon EF 135mm f/2.8 Soft Focus Canon EF 180mm f/3.5L Macro USM Canon EF 200mm f/2.8L II USM Canon EF 300mm f/2.8L IS USM ** Canon EF 300mm f/4L IS USM Canon EF 400mm f/2.8L IS USM ** Canon EF 400mm f/4 DO IS USM ** Canon EF 400mm f/5.6L USM Canon EF 500mm f/4L IS USM ** Canon EF 600mm f/4L IS USM ** Canon EF 1200mm f/5.6L USM ** * Using rear gelatin filter, such as Wratten 89B ** Using drop-in filter # Using either front glass filter or rear gelatin filter
on this page: Then this is said about the Canon 10-22mm lens: "no hot-spot, but long wavelengths "smear" at the edges" Can anyone comfirm this? Actually I really don't know what he means by this... is the lens blurry at the edges when used in IR? Has this lense been working for anyone of you?
The Canon EF 55-200mm f/4.5-5.6 II USM is suitable for IR photography. I just got the Cokin P size IR filter and tried out all of my lenses. I also found that the Tamron 28-75mm 2.8 lens produced a hot spot.
I have used the 17-40mm f/4L on a Canon 400D using an infrared filter and I got a hot spot in my shots.
