Nite Site / Ranging Wheel

[David.evans 5,323]

Out last nite , with nite site . 40 yards from the hedge line, with out nite site on the gun , then I set up the nite site , and focused the nite site with the side wheel and the range showed about

28 yards on the wheel , I know that the side wheel is bang on the ranges I've marked on it , so I'm thinking that the difference with the nite site on is down to the camera been attached to scope , so I'm getting the distance wrong with the nite site attached , any ideas as to where it's going wrong ?

Thans in advance

Dave

[shergar 42]

don't think there's out wrong , same thing with my home brew night vision where the range wheel on the scope don't match up with the actual range , could be something to do with magnification of the lens on the camera as long as the zero stays the same and you get a clear image don't worry about it.

 

shergar

[TimS 49]

Easy answer.

 

Infrared light works at a different frequency to visible light, so as a result your optics focus points will be different for infrared.

 

Tim

[David.evans 5,323]

So what your saying Tim . Is buy another ranging wheel and mark it up to match the foucus when the nite site is on and re zero

Dave

If all that makes any scene at all

[shergar 42]

you could also use a laser for range finding at night, watch one of si pittaways videos vermin hunters tv on youtube he can explain it better than I can.

 

for some reason it won't let me copy and paste the link .

 

shergar

[TimS 49]

I guess that could work. I never tried. Instead I prefer to sit in a fixed position and mark out my distances using sticks with some reflective tape during the day. Then at night, the sticks shine at 10yd intervals, so I know how far quarry is.

[shergar 42]

I do the same , put garden canes every 10yrds but I like the idea of the reflective tape going to try that next time out .