Thread: Scopes with decent eyebox at higher magnification

Originally Posted by DavieyJones

Have you tested to see the total elevation adjustment you have?

no not yet

Originally Posted by Larskramer

You get it though, I'm more a nightforce /march man. Although I always thought a bigger tube would help allow more light through in some way ?

Nope purley more up little swaros suck light just as well as the big tubes

As has already ben discussed here, setting up your scope height and comb height on your stock, so you have a consistent view through your scope is vital. This will remove the constant searching for the scopes sweet spot.
Physics dictate how small that sweet spot is, regardless of the scope manufacturer, cost, or design.
As you will already have figured out, the sweet spot (projected image) gets smaller with increasing magnification. The math is pretty easy.... Objective lens diameter in mm divided by the magnification, is the size in mm that you will see through the ocular lens. So on a scope with a 40mm objective lens at 4x mag, the projected image is 10mm, which is easy to find. The same scope at 20x mag will only be projecting a 2mm image. If you have not set up your stock and scope for a consistent cheek weld, you will perceive the 2mm projected image as fussy, and hard to find. Not a scope issue, but rather a less than optimal setup of your rifle.

So, to get a easier to find image at the ocular lens at given magnification, the only thing that can be adjusted is the size of the objective lens. Hence why you tend to see 56mm lenses on very high magnification scopes.

The clarity at full magnification is another story, and that is generally speaking where the higher price comes into play. Better optics (clear, bright, no chromatic aberration, no barrel distortion) generally equate to a higher price.

Cheers all for taking the time to answer. Appreciate it.