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What Z x W would you recommend for spotting a rock climbing route (up to about 30,40 meters high - standing in front of it)? Checking for cracks f.x., to estimate what cams you need to take with you and if bolts look safe.
Z in {8,10} and W in [25mm,50mm].
8x25 would be more stable, little less zoom, less bright and less weight
while
10x50 would be less stable, little more zoom, brighter and more weight.
In binocular I would say 8x25 for size and weight. I don't think you want weight or bulk of a 10x but if you are driving to the face then weight is not an issue. You can find some light 10x but for me at a 10x I like a longer binocular.
Field of view is not important in spotting a route. For weight (and volume) I would go with monocular but then ironically would go 10x. You don't have the weight issue. A longer 10x is physically easier to handle. You get higher quality lenses for the same money. For me a monocular is easier to stabilize as it is lighter and you can use two hands - I also shoot pistol. Take it up the route with you for site seeing at the top.
