I've been watching a lot of new digital scopes releases closely...
The original tube style night vision scope, the Pulsar Digex, as expected provided true digital "
night vision" performance. Pulsar always used big super fast glass, which allowed a ton of IR transmission through to the sensor, just check out the Sightline and C50 lenses, big beasts, combine this with HD CMOS sensors which are much more sensitive than Full HD CMOS sensors and then Full HD CMOS sensors are also
x4 times more sensitive than a UHD 4K sensor..
A 4K sensor does not need a fast lense for daylight, no scope does, so they look great in daylight regardless of aperture.. HD can get by with a smaller lens (although Pulsar provided a beast with it still), 1080P HD like the Zulus V2 and original Alpex A50T (bad ass lens), can get by with a smaller lenses, but 4K needs a fast lens due to being less sensitive at night...
Looking at the market now, everyones got a hard on over 4K, daytime performance excellent, but it's not the sweet spot for night vision performance, 1080P HD is the ideal resolution/sensitivity point, to get the best out of 4K you need the transmission, ideally F1.2, aka the Alpex 4K A50EL ,
software does not out perform aperture with humidity and vapour in the air at night, this drastically cuts down IR transmission , fast glass works so much better and increases viewing distance substantially..bombing with VCSEL with vapour in the air, can turn it into soup...
Just seems to me things are going a little weird with
digital night vision, chasing the 4K buzz word, which is all fine and dandy if you give them the right tools to do there job...
The two scopes below currently have the largest apertures at the minute with a 4K sensor combo.. the Alpex A50EL is 100% the daddy in terms of FOV, long distance performance and night time performance from any 4K scope out there , the slight negative is it's a heavy beast.. I checked daytime performance against everything, at full magnification it retained excellent sharpness for a scope with such a low base magnification and wide FOV, even in past night time tests it doubled the distance at night against Zulus V1 models with VCSEL
when humidity was present in the air , just showing how much a bad ass lense makes a difference..
HikMicro Alpex 4K LRF (A50EL) delivers ultra-HD day and night imaging, excellent low-light performance, with laser rangefinder and ballistic calculator.
www.blackwoodoutdoors.co.uk
Pard Night Stalker 4K 2.0 LRF night vision scope with 4K CMOS sensor, integrated laser rangefinder and onboard recording functionality.
www.blackwoodoutdoors.co.uk