As a recap, this bino is the Apogee/Fotar/Celestron 25x100mm model. I measure the eye-relief at about 12-13mm, as measured from the glass surface to the Airy disk projected on a piece of wax paper. The rubber eyeguards fold-down. With my eyeglasses on and the guards folded, I can just see the entire FOV with the eyeglass lenses touching the rubber eyeguard. However, since my astigmatism correction is very small, I typically remove my glasses at the eyepiece and re-focus accordingly. And about focusing, this binocular has individual-eyepiece focusing, so each side must be focused independantly. Makes it tough on group observing. A heavy-duty tripod or parallelogram is required due to the sheer mass of the unit. A terrific deep-sky binocular, and Patrick's price is pretty darn good, Wayne. I love mine. --- Patrick Wiggins <paw@wirelessbeehive.com> wrote:
I don't know and am not sure how to measure it. However, I think Chuck said he had the same binos so I'm sending this on to him to see if he knows.
Wayne Sumner wrote:
Hi Patrick, Do you know how many millimeters of eye relief the 25x100's have?
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