I have a sneaky feeling that this will be useale on a lot more scopes.
If you have a less compatible scope (that's what I've been testing with) you can knock the scope mag right down and the make up the magnification using digital zoom without any loss of quality.
My test scope bottoms out at 4.5x mag. With the Adder fitted this is now about 9x which I find pretty much perfect. If you needed to you could use digital doom to bring that up to 18x or even 31.5x!
I also expect that if you have a fixed variable like a 2.5-10 or a 3-12 then on the bottom end, even without focus ability, using a Black Sun Ruby you would get enough depth of field for it to be very useable. Again using digital zoom to gain magnification should you need it.
I've not got one to test with here at the moment, but it will be very good.
The scope I have been testing with and doing the videos with, isn't particularly amazing with add ons so the S-Tac should be quite a lot better.
Sounds good Clive I suppose I best get one orderd cheers allan
Still got some available on the next delivery due to arrive Tuesday so not long to wait at all.