eye piece center to center
Yes, that is called interpupillary distance IPD - the distance between the pupils of your two eyes. An IPD on binoculars is typically between 54mm - 70 +mm, say, up to 74mm. Anything more is tough to come by in a full size binocular. Double hinged folding compacts will be your best shot at going more, but, of course, you lose that all important exit pupil.
The biggest hassle on IPD is that it is not a commonly listed spec by the bino manufacturers. First step, though, is to find your IPD in mm. This is easily done by stopping at an eyewear shop and having it measured or getting a ruler in mm and have someone measure it for you. If you need more than 74mm, selection will be very limited. Of all the bino manufacturers, Steiner is the best at listing their IPD and, of course, they are a very well known name in hunting binoculars. Take a look at the Steiner C5 with 75mm IPD
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