35mm Vs 50mm Thermal optics. Whats the difference ?

 

35mm Vs 50mm Thermal optics*. Whats the difference ?

35mm 

Zentron Global/ZentronOutdoor ZenQ635

Vs 50mm 

Zentron Global/ZentronOutdoor  ZenQ50

Thermal optics. Whats the difference ?

Zentron Global/ZentronOutdoor ZenQ635  

 Zentron Global/ZentronOutdoor  ZenQ50

QUESTION:

 How do I know what thermal imager Objective size I need?

ANSWER:

It depends upon what you are hunting.

If for example your quarry is close and there are many animals present. 

For illustrative purposes only (I don't want to shoot the neighbour's cattle!)

 The reason is thus. You will have a broader view with the 35mm 

than the 50mm 

and since you will be close then 50mm is not necessary. So for example dispatching pigs (pest control) around a waterhole or feeding at night, you will want to keep an eye on as many as possible during this activity and a 35mm will be the optimal choice.

If on the other hand your quarry is further away and fewer in number, say just one, for example a deer, the 50mm objective will be a better choice.

Now upon saying all of this there are exceptions and of course if shooting out across an open field then one might want to scan the area to see what's available, then the 35mm will be 

the best choice for the fastest acquisition. 

*I not only have used the above thermal imagers to illustrate this article but also own them (along with my hunting buddies) and have used them for hunting purposes and highly recommend them BTW.