Simsim asked:


I have a 7×50 Orion Scenix Astronomy pair of binoculars. I’m not happy with the 7x magnification.
I thought that if I can get a tiny monocular, say 3X20, then I can put it in front of one of the binoculars’ eyepieces. Hopefully getting a 7*3=21x magnification.

Is this possible?
Any recommendation on the monocular(aperture, magnification, brand etc)

Thanks in advance.

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Raj Gohil asked:


I want to buy astronomical 10×50 binoculars under $125 to observe sky,planets and stars. Which is the better binoculars; nikon,bushnell, or celestron for sky observation? If u have any other brand better than these, you can tell me that one also. Which one have more eye protection? Please help me!

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Hal W asked:


I live in a skyscraper in a large city in paradise, with incredible vistas of mountains and the ocean. Which will be better for viewing my surroundings up close?

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osufan asked:


How much zoom is a 10×50 on binoculars? How many x?

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Apple Pie asked:


I want to buy binoculars for star gazing and to see Mars at the end of August. What is the cheapest brand, yet good quality that I can get?

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Adidas asked:


I have a pair of 12×50 binoculars, coated optics, 275ft at 1000 yds.
which planets might I be able to see through it? and what else can i see with it?

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BlackJackDavey asked:


I have 12×50 Wide-Angle Orion WorldView Binoculars. they focus fine but the picture is doubled. it looks fine if you close one eye or the other. is there a way to fix that?

thanks a bunch.
the hinge is there to accommodate people with different distance between eyes, it doesn’t make an impact on this problem. every one who looked through them described same issue. no matter how narrow or wide hinge was extended.

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Treina J asked:


I am trying to hold on to these binoculars until they are worth some money, and so far I think they may be only worth $10.00
They come in a leather case from the U.S. Naval Gun Factory / Optical Annex Shop in Rochester , NY. They are extremely old binoculars.

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jondalar469 asked:


The exit pupil diameter is normally found by dividing the diameter of the objective lens by the power of the instrument. But there ought to be a way to get more light through the instrument without changing the exit pupil diameter. Maybe a preamplifier optical instrument that has a larger objective, which feeds the binocular objective from its own exit pupil?

Is there such an instrument? Would it be possible to make such an instrument?

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Sharkey asked:


The question reads, “The best place to aim a telescope or binoculars on the Moonis among the terminal line- the line between the Moon’s light and dark hemispheres. Why?”

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