Tm,
You wrote in post #14:
"A little more depth at moderate distances (the 7x yielding around a third of an f stop more 5.25- f6), a bit less unsteadyness and a brighter view in a given ambient light would also push viewing possibilities up. Certainly in the longer, more drawns out sunrise and set of higher seasons.
We have seascapes and panoramic views not far from here and a higher magnification might be indicated here for sheer resolving power. However, a bird in flight or a creature on the move is going to be easier to track across land or sea with my unsteadyness with a wider fov I'm coming to see."
It seems that you have discovered on your own the merits of using a good wide field 7x binocular on flying birds.
Jerry Liquori, who wrote two excellent books on identifying hawks in flight: HAWKS At A Distance and HAWKS From Any Angle; wrote in a paragraph on "Optics for Hawk Watching" in the former book that he used 7x binoculars because of their wide field of view and that, because of their "unmatched" FOV, he had used Zeiss 7x45 Night Owls from 1994 till 2008 when he switched to a Zeiss 7x42 Victory FL.
Bob
You wrote in post #14:
"A little more depth at moderate distances (the 7x yielding around a third of an f stop more 5.25- f6), a bit less unsteadyness and a brighter view in a given ambient light would also push viewing possibilities up. Certainly in the longer, more drawns out sunrise and set of higher seasons.
We have seascapes and panoramic views not far from here and a higher magnification might be indicated here for sheer resolving power. However, a bird in flight or a creature on the move is going to be easier to track across land or sea with my unsteadyness with a wider fov I'm coming to see."
It seems that you have discovered on your own the merits of using a good wide field 7x binocular on flying birds.
Jerry Liquori, who wrote two excellent books on identifying hawks in flight: HAWKS At A Distance and HAWKS From Any Angle; wrote in a paragraph on "Optics for Hawk Watching" in the former book that he used 7x binoculars because of their wide field of view and that, because of their "unmatched" FOV, he had used Zeiss 7x45 Night Owls from 1994 till 2008 when he switched to a Zeiss 7x42 Victory FL.
Bob
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