Action Zoom Series (Action 10-22x50CF Zoom)

For people new to astronomy who want to ask those questions that they were afraid to ask. Receive helpful answers here.
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sgnic
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Joined: Thu Dec 23, 2010 3:03 pm

Action Zoom Series (Action 10-22x50CF Zoom)

Post by sgnic »

Hi gurus,

I'm new to this. And so i was wondering will a Zoom Binoculars be suitable to do astro viewing?
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andeelym
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Joined: Sun Oct 04, 2009 11:01 pm

Post by andeelym »

I read that zooms are not that good. Cos after 10x magnification, it'll be difficult to get a steady view while hand-holding. And I think zooms will make the final image dimmer than non zooms, so its more difficult to catch dimmer stars. Daytime terrestrial usage i guess its fine, but for astronomical uses, the brighter the better.

But then again, experts, please correct me if I am wrong.
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Gary
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Re: Action Zoom Series (Action 10-22x50CF Zoom)

Post by Gary »

Hi sgnic. Welcome to Singastro. Zoom binocular is not suitable for stargazing compared to non-zoom types. I suggest you read the book Star Ware (available in the public libraries) or Backyard Astronomer's Guide for more info about using/buying binoculars for stargazing purposes.

For stargazing puposes, 7x50 or 10x50 or 8x42 are quite popular choices among stargazers. If you dont mind using a binocular with a tripod, 15x70 20x80 25x100 are quite suitable.

You may find the following materials useful:

http://www.backyardastronomy.com/Backya ... ulars.html

http://www.backyardastronomy.com/Backya ... Books.html
http://www.astro.sg
email: gary[at]astro.sg
twitter: @astrosg


"The importance of a telescope is not how big it is, how well made it is.
It is how many people, less fortunate than you, got to look through it."
-- John Dobson.
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Chris
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Post by Chris »

Zoom binoculars are not suitable for stargazing. Been their, done that, it is not pretty.

Objective of a binocular 4 stargazing: Give a WIDE field of view

What a zoom bino does: increases magnification, decreases field of view.

They are contradicting.
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fizzy123
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Location: Tampines

Post by fizzy123 »

I think weight might be an issue as 22X might really be heavy. Most ppl's arms get sore even after holding a pair of 10X50 bino after a few mins
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