Sedstar,
Sunnranger(you know and most of guys here don’t know) is multiple lenses system illuminator(or flashlight) based on yukon night vision device 3x42, F1.4? (there is also bigger version ).
Plenty of guys on nvforum were comparing it throw to 67 mm aspheric (X searcher and T67) and it had beaten them in terms of throw but they did not take one important variable - they were not all build under same conditions (same driver, same emitter).
So with proper variables(all systems with same driver and same emitter) when we use SR with IR emitter (4715as for example) has spot size somewhere on half way of hotspot on 50 and 67 mm lenses and visually it really seems that it is out throwing 50 mm and very close to 67 mm one because it has ultra clear die projection I never seen in my life. I can’t measure invisible light…
But I’ve also decided to build fet driven xp-g2 s4 2b SR pill to convert it into flashlight and I really expected that it will kill at least 50mm aspheric and that it will be close(performance vise) to 67mm one since nothing in classic aspherical flashlight world has clearer die projection.
Seriously guys you’ve never seen clearer die projection than in mentioned Sunnranger system but when I put it on the lux meter it was total disappointment throwing around 10-20% less than classic 50mm ones :rage: so it has smaller die projection than 50 mm one and yet throwing less…
Now something good is probably happening when we use IR light source(or even red emitter source inside such system) since it seems that it is passing that light through system much better than visible white led light.
My thought is that special NV AR coating on SR lenses is killing white led light transmission by stopping of blue or other important color that needs to be projected through lenses to give best performance…
I want to say that this system has great potential Why? 42mm lenses that should throw close to 67mm lenses size which means more throw in smaller head diameter.