BACK ON TOPIC - please
So anyway I originally asked this question about glass quality because I'm getting ready to buy a pair of 10 x 42 Leica Geovid HD-B range finding binoculars.
They are eye-wateringly expensive (i.e. need to borrow some of the cost form my home equity account!) but they have several features which I 'need".
1. great glass
2. 12 built in 'average' ballistic trajectories
3. micro SD card for your exact rifle ballistics (downloaded from Leica computer program after entering all your rifle's ballistic data including BC, muzzle velocity, etc.)
4. high angle sensor compensation for corrected hold readout to 800 meters
5. temperature sensor
6. barometric pressure sensor
7. software to account for all sensor and ballistic inputs to generate a very accurate hold readout in mils or MOA and distance in meters or yards form your FFP.
The temperature/barometric pressure sensors give the correct "altitude pressure" input. i.e. If you are hunting at 9,500 ft. and day one is clear and 10 F. and day two is snowing lightly and 30 F. you have two different "altitude pressure" readings that are important for a long shot.
I've looked at the "next best" LRF binoculars, Swarovski, and they don't come close to the features of the Leicas.
t
Eric B.