William asked:

So i’ve been reading over the different questions about binoculars. I just want some reviews on what you can see with the different sizes.

GiantView 15×70 Large-Aperture
http://www.telescope.com/control/product…

GiantView 20×80 Large-Aperture
http://www.telescope.com/control/product…

these are both pretty cheap it seems (~250)… is that a red-flag?

GiantView 25×100 Large-Aperture
http://www.telescope.com/control/product…

ok finally MegaView 30×80 Wide Angle
these are about 500 are they worth the extra?
http://www.telescope.com/control/product…

cool thanks
ps im hoping to see lgm’s on vega so…
j/k, seeing the rings of saturn would be pretty good for me. any others? any info?

Reply:

I own Celestron Pro 10×50 binoculars and Orion Little Giant 15×70 binoculars, and have tested Orion’s 25×100 binoculars. I use the 10×50s 99% of the time because they’re light, steady, and easy to hand hold. The 15×70s give very fine images but are very difficult to hand-hold and inconvenient on a tripod. I wasn’t impressed by the 25×100s: the images were nowhere near as sharp as in the 15×70s, and they had to be used on a tripod. I’d recommend 10×50 as the best size for astronomy.

No binocular will give you a satisfactory view of Saturn’s rings. You need at least 25x just to detect the rings (as an oval shape) and at least 100x for a satisfying view, which requires a telescope. Binoculars are primarily used for wide field views of star clusters and galaxies, not planets. I have no idea what an “lgm” is; I’ve never heard that term in 50 years in astronomy!