Mamiya Sekor 55mm ƒ1.8 SX – clean lens that has smudge Hot Spot after ƒ11 Konica AR 50mm ƒ1.8 – hot spot looks like smudges in the imager after ƒ11, also Ninja Star Konica AR 50mm ƒ1.7 – clean lens, great performer Konica AR 50mm ƒ1.4 – well defined hot spot from ƒ4 Konica AR 57mm ƒ1.4 – fantastic lens both color and IR. I shoot a pair of oak trees in front of my apartment building late in the afternoon. So I have gone crazy with testing Standard/Normal old glass over the past three months. Ideally, every lens should specify the aperture range that causes hotspots, but until we get there, please take this list with a grain of salt, and if you find any errors, please let us know and we will fix them!Īfter you know what lens is good, order one on Amazon or eBay. Additionally, hotspots tend to be worse with deeper IR filters, like 850nm, than the color IR filters, like 590nm. In contrast, someone who uses the lens around f/11 will think it is terrible, while yet another person may use it at f/11 and think the hotspot is mild and can be worked around and still think it’s a good lens. For example, a lens with a moderate hotspot at f/10 - some people may use it primarily at f/6 and below and think it is a fantastic lens. That is because this is a compilation from various sources, and people have different judgements for what is acceptable. Please note: This list has errors, or you may find lenses listed as “poor” that you use well. You can generally expect that with the AR coating, you will get several additional hotspot-free apertures, making some of the poor performers usable. Luckily, we offer AR-coated conversion filters that reduce hotspots, improving the performance of the lenses on this list. Most hotspots only occur at smaller apertures and specific shooting angles. Please note: even poor performers can sometimes be used. Lenses noted with an asterisk (*) have had mixed reports or only have a hotspot in limited situations. The lists below are based on our internal tests and what others have reported. We have compiled the world’s most extensive collection of lenses and their hotspot performance. Unfortunately, as a result, many lenses suffer from an infrared hotspot. A Complete Beginner’s Guide to Understanding Aperture, Shutter Speed, and ISOĬameras and lenses generally weren’t designed for infrared use.UV Photography Ready Camera Kit – Canon EOS T100.UV Photography Ready Camera Kit – Canon EOS RP.Everything You Need to Know About Infrared Photography.
#HELIOS LENS CAHRT HOW TO#
How to Get Started with Infrared Photography.
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