kiffy Posted August 11, 2014 Report Share Posted August 11, 2014 hi guys, im working on a nv spotter at the moment and was going to fit a 501b as i have one on my gun nv setup and its ok and i bought another one second hand on here a while back at a decent enough price but ive seen a few now are using a T20, is there much difference? enough that it would be worth me investing over the 501b i already have Quote Link to comment Share on other sites More sharing options...
colin lad Posted August 11, 2014 Report Share Posted August 11, 2014 i tried both on my starlight arrow and the t20 beat the 501 buy quite some distance colin Quote Link to comment Share on other sites More sharing options...
Amazed Posted August 11, 2014 Report Share Posted August 11, 2014 i tried both on my starlight arrow and the t20 beat the 501 buy quite some distance colin Has anyone tried the t20 from here ? http://www.ludicrous-lumens.co.uk/UF_T20_Torch_red_green_or_white/p2616500_11944139.aspx Thanks Karl. Quote Link to comment Share on other sites More sharing options...
Dave-G Posted August 11, 2014 Report Share Posted August 11, 2014 (edited) It's a case of horses for courses - and too much can be just as counter productive as not enough in the wrong place, range and night vision device light sensitivity. The 501b is available with different power LED's (well mine are) It's lighter and more compact and supplies more than enough IR for subsonic ranges when used with a rear add-on type rig. It's beam output is fairly tight - without being so tight as to leave an unlit area around the edges of most fixed mag rifle scopes or dedicated NV rig viewers. It is moderately suited to a wide angle field of view that is usual with a spotter because the beam is not adjustable to account for the wider viewing area. As wider angle spotters are now becoming more commonplace, the wider head of a T20 will grab more light from the LED light output cone so will put more light spread across a wider field of view. It also concentrates it into a tighter spot for higher scope mag to be used for supersonic ranges - but you probably don't actually NEED one - as opposed to might want one. As you already have 501b's I'd say try them first without spending any more money because spotters generally don't need as much IR as NVD's that are fitted behind a rifle scope: Here is what you can expect to see with a moderate power 501b through a spotter. Bottom line is - do you need more light than this? EDIT: Notice the reaction to even the moderate amount of IR being used, but if you are making your rig with a cheap camera you may need to be less covert and use more IR. Edited August 11, 2014 by Dave-G Quote Link to comment Share on other sites More sharing options...
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