What this means is that, in the examples above, night, the 7x50 "night glasses" will give a much brighter image than the other two. Under ordinary conditions, the 7x50 will not be any brighter than the 7x35s (and are considerably heavier and more expensive). And in bright daylight, there may not be any meaningful differences in brightness between the three (and if the 8x20s are slightly dimmer, that may be a good trade-off in return for their compactness and light weight). | What this means is that, in the examples above, night, the 7x50 "night glasses" will give a much brighter image than the other two. Under ordinary conditions, the 7x50 will not be any brighter than the 7x35s (and are considerably heavier and more expensive). And in bright daylight, there may not be any meaningful differences in brightness between the three (and if the 8x20s are slightly dimmer, that may be a good trade-off in return for their compactness and light weight). |