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Superfast lens quest - Printable Version +- Opticallimits (https://forum.opticallimits.com) +-- Forum: Forums (https://forum.opticallimits.com/forumdisplay.php?fid=4) +--- Forum: Just Talk (https://forum.opticallimits.com/forumdisplay.php?fid=17) +--- Thread: Superfast lens quest (/showthread.php?tid=5318) |
Superfast lens quest - HansSchulze - 07-27-2022 I am stuck trying to find a super fast lens for nighttime, wide angle (60 deg) with a very low resolution (480V) small CCD analog TV sensor (1/2" or 1/3"), which on some calculators comes out to 4mm FL. What is the limiting reason(s) that I can't have a 2 inch or larger aperture? What about a larger lens (MFT, etc) hooked on an adapter? How much aperture can be had for a ~five hundred bucks? I need many of them. I was ridiculed that there was a F1/0.85 solution.. ??? I've scoured the internet for weeks. Thanks Sorry if this is too theoretical for this site. I saw some great theory in the documentation here. RE: Superfast lens quest - Klaus - 07-27-2022 A photo system lens seems to be a little bit of an overkill for your use case. A C/CS-mount CCTV lens may do the job unless you have excessive expectations regarding quality? e.g. https://www.amazon.com/TAMRON-13VM308ASIRII-LENS-MOUNT-3-8mm/dp/B005YSK2F6 https://www.amazon.com/Megapixel-Low-light-Optical-Infrared-Security/dp/B07BN3TJ94 https://www.amazon.com/Baosity-CS-Mount-Network-Security-Surveillance/dp/B07JK86PF8 |