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John F
sage
Reged: 02/16/04
Posts: 308
Loc: Washington State
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Re: Nagler-like performance...
05/07/08 02:28 AM
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Ed,
Congradulations on getting a pair of the Prostars. As a binocular connosisseur I suspect that you'll fall in love with them. It is too bad that their power is only 7x and that they have such a bright exit pupil (i.e., 7.14mm) as that limits their utility for astronomy unless you get to use them at a place like Baxter State Park in Maine where sky gets really dark at night. Nevertheless, despite their size and weight they're so *BLEEP* good you'll look for opportunities to use them whenever you can.
The Nikon 10x70 Astroluxe is in the same league as the 7x50s quality wise but are generally more useful for astronomy because their magnification and aperture advantages. Even at dark sky sites I use them a lot more than the Prostars for those very reasons.
Of all the other binoculars that I've tried one other that stands out for the quality of its edge performance is the Zeiss 15x60 B/GATs. And that's especially impressive given that they're a wide field model (i.e., 65-degree AFOV) unlike the two Nikon models mentioned above that have AFOVs in the 50-degree range.
John Finnan
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Leica 7x42 Ultravid
Nikon 7x50 Prostar
Swarovski 8.5x42 EL
Nikon 10x70 Astroluxe
Leica 12x50 Ultravid
Zeiss 15x60 B/GAT
Takahashi 22x60 Astronomer
NP-127 w/Bino Vue
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