Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
Posting here instead of the optics forum as it applies directly to precision/competition shooters.
I just got an optical booster from Gene Davis (winning US BR 'smith). The purpose is to increase scope magnification without the cost of traditional permanent scope lense changes.
These products either screw or slip onto the eyepiece of the scope and act just like a magnifying glass. Made with Zeiss lenses, there is zero distortion added to your view. Gene says these are 'eyeglass' grade - meaning as good as it gets.
For my Elite 4200 6x24 AO scope, I bought a slip on style (eyepiece is not threaded). Comes with a rubber tube housing the lense. Looking through the lense at printed text, it most certainly magnifies the image and there is no visible distortion.
I only used it briefly on my scope and the initial impression is a much 'larger' image. The field of view remains the same (determined by the scope NOT this lense). Everything just looks BIGGER - a very nice view. No change in resolution, colour, brightness - completely neutral.
At $129US shipped, it is a dirt cheap way to increase your scope magnification WITHOUT reducing your field of view, making the image dimmer, loosing some image resolution, changing your reticle subtention - mil dot, increasing edge distortion, increasing size or bulk of the scope, changing any part permanently, buying very specific end use scopes for big bucks.
The screw on style are a bit cheaper ($104US me thinks) but don't boost as much as the slip ons. The screw on's boost approx 25%. The slip on's up to 40%.
My 24X now becomes a 30 to 34X. Boosts the entire range of my variable scope. In essence, my 6x24 becomes a 8.5 - 33.5X.
A 36X would become a 45 to 50X scope!
I am very impressed with how well this simple device works. I will be spending much more time to see how best to utilise this product. It does require a change in the focus of the scope - a simple job.
Jerry
I just got an optical booster from Gene Davis (winning US BR 'smith). The purpose is to increase scope magnification without the cost of traditional permanent scope lense changes.
These products either screw or slip onto the eyepiece of the scope and act just like a magnifying glass. Made with Zeiss lenses, there is zero distortion added to your view. Gene says these are 'eyeglass' grade - meaning as good as it gets.
For my Elite 4200 6x24 AO scope, I bought a slip on style (eyepiece is not threaded). Comes with a rubber tube housing the lense. Looking through the lense at printed text, it most certainly magnifies the image and there is no visible distortion.
I only used it briefly on my scope and the initial impression is a much 'larger' image. The field of view remains the same (determined by the scope NOT this lense). Everything just looks BIGGER - a very nice view. No change in resolution, colour, brightness - completely neutral.
At $129US shipped, it is a dirt cheap way to increase your scope magnification WITHOUT reducing your field of view, making the image dimmer, loosing some image resolution, changing your reticle subtention - mil dot, increasing edge distortion, increasing size or bulk of the scope, changing any part permanently, buying very specific end use scopes for big bucks.
The screw on style are a bit cheaper ($104US me thinks) but don't boost as much as the slip ons. The screw on's boost approx 25%. The slip on's up to 40%.
My 24X now becomes a 30 to 34X. Boosts the entire range of my variable scope. In essence, my 6x24 becomes a 8.5 - 33.5X.
A 36X would become a 45 to 50X scope!
I am very impressed with how well this simple device works. I will be spending much more time to see how best to utilise this product. It does require a change in the focus of the scope - a simple job.
Jerry
Still never did so I bought a 12X-42X Nightforce from peterdobson, in stock and to my door in 2 days. 
