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m00nless
super member
Reged: 08/06/08
Posts: 154
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Since the Quantum-4 20x80 (triplet) binoculars have a stopped down aperture how will they perform optically compared to the Apollo 15x70 that are not stopped down?
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F.Meiresonne
Post Laureate
Reged: 12/22/03
Posts: 3369
Loc: Eeklo,Belgium
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My TS Marine (thesame bino as the Apollo) sees as deep as my Stellar 20x80. I've tested that on some ocassions and i can't catch a star that i can not see in the 15x70.
But of course that does not say anything about the Quantum.
However i have a Quantum too, a 10x60, wich sees hardly deeper then my 10x50.
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Freddy Meiresonne
Obsession 18 inch #1638
Orion Optics 8 inch F/4.5 -1/8 wave optics -Vixen GP-E
20x80 Helios Stellar Binos
15x70 TS Marine (=Obie Ultra)
10x60 Helios Quantum 4(= Obie Mariner)
10x50 Helios Nature sport plus
8x40 Helios Nature sport plus
Eyepieces in use :Pan 35,24,19, N13T6, Pentax 10 XW, N9T6, Ultrascopic 7.5, TV2, baader ortho 12.5 and 9 mm
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