50mm or 40 mm

[hawkinpup]

What's the advantage of a 50mm objective lens or a 40mm lens or what ever size 44mm 42mm etc?

thanks

 

[XLR]

Re: 50mm or 40 mm

The bigger the bell, the better it essentially gathers light. However, the smaller lenses offer lower sight height which some shooters prefer.

 

[The Mechanic]

Re: 50mm or 40 mm

All is still based on a like for like comparison. You can't compare lets say a Counter sniper 56mm objective to a US Optics SN-12 with a 22mm objective because the US Optics would kick the Countersnipers scope in every way possible, even if you dropped an anvil on the US Optics

 

[hawkinpup]

Re: 50mm or 40 mm

Same manufacture lets say 10x40 and 10x 50 why would you use a 50mm over a 40mm or vice versa

 

[KNIGHT11B4]

Re: 50mm or 40 mm

As stated above you will gather more light improving the clarity of the target when you run a larger objective lens.

Also in general, resolution is best at the center of an objective lens. It decreases at the outer edges because of the curvature of the lens. So, the bigger objective lenses have a larger central area of resolution than smaller lenses. Simply put.. A larger lens will have a larger sweet spot.

At least this is my understanding... Hope it helps.

 

[hawkinpup]

Re: 50mm or 40 mm

so does that give you a larger field of view?

 

[USMCj]

Re: 50mm or 40 mm

Dont forget better resolution and larger exit pupil.