Action Binocular

Is this binoculars good for astronomy?

I’m planning either to get a nikon action 16×50 binocular,Celestron UpClose 10×50,Omincron pinnacle 10×50, Celestron Skymaster 15×70.

For ease of use and for performance the three binoculars are quite different.
The worst for astronomy is the 15 x 60. It’s too powerful to hold steady without a tripod and the power is too high for the aperture to get a bright image of extended objects like nebulae.
Next worst is the 15 x 70, almost the same for power but it has a better aperture. It’s good for astronomy but best on a tripod.
The best as a general purpose binocular for astronomy is the 10 x 50 because it can be hand held with relative ease and still provides a bright image with sufficient power for good views of hundreds of objects,
10 x 50 is the best binocular unless you use a tripod and is always recommended as the size to buy for stargazing. It is also the best for wildlife watching and has a good brightness in poor light.
Now for some figures.
60/16 = 3.75 ….squared = 14.1
70/15 = 4.67 …..squared = 21.8
50/10 = 5 ….squared = 25
That shows you the brightness level of each and you can see the 10 x 50 is the best.
The 70mm will show fainter stars because for point sources the aperture is all that matters.For extended objects the light gets spread out more with more magnification so the image gets dimmer which is what the figures above are about.
At dusk the 10 x50 will show more detail in the woods than the 15 x 70 because it has a brighter image and it will also give brighter views of nebulae, though smaller than the 15 x 70.
Most amateur astronomers have 10 x 50 binoculars, or 7 x 50 which are even brighter and you can use either of them for long periods without tiring.
I have that Celestron 15 x 70 but the Helios 10 x50 binoculars are used far more often.
Another size you might want to consider is 9 x 63. Many companies do them. Mine is a Meade model which is recently discontinued but the Helios is sharper and more contrasty so the Meade doesn’t get so much use although if the optics were better it would be the one most used. It’s still fine as binoculars go but the Helios is better. The Celestron 15 x 70 is about the same for image quality.
Not brilliant but OK. Not a patch on the Helios though.
63/9 = 7…squared = 49, the same as 7 x 50 binos but with a bit more power.
Twice as good as the 10 x 50.
Just a shame about the softer images it gives, like the Celestron.
One of Meade’s not so good, like their 60mm budget price refractor telescopes. They’re OK but better stuff is available for not much more cash.
The Helios is the one that gets best buy in all the reviews for astro binoculars, and in birding magazines as well .
It’s a good buy, better than the Pinnacle and reasonably priced.
Scroll down to 10 x 50 Naturesport WA
http://www.green-witch.com/acatalog/Porro_Prism_Range.html . . . . . .
Here is a bino answer for a guy in Austalia. The advice is the same worldwide of course. All the brands mentioned and many others are available in USA, UK, Europe, Australia etc. You maybe won’t want shops in Perth though. Long way to go. Anacortes Telescope and Wild Bird is a good supplier in USA and their site is good for info.

http://uk.answers.yahoo.com/question/index?qid=20091020071654AAVvqW2 . . . .

Nikon Action Binoculars 16×50

Wingscapes WSCA04 Timelapse Outdoor PlantCam $79.95 Watch your plants grow in fast-forward with the new Timelapse PlantCam. The PlantCam is rugged and weatherproof, and automatically takes photos and videos at set time intervals. It then stitches the photos together to create a video showing in minutes or seconds what usually can’t be seen with the naked eye. The result is a seamless movie of your plants growing! Fast-forward your plants with thi…

Battlefield 1942: The Complete Collection $9.99 Real war action and strategy / Combat Enemies / Pick sides and see how you might have changed history / ESRB T = Teen Stats, rankings, and awards system drives collaborative play…

Sniper Elite $16.00 Sniper Elite takes place in war-torn Berlin during the final days of World War II. As the Soviets and Germans are locked in a life and death struggle, the western Allies fear the looming Cold War. Assuming the role of a lone American sniper trained by the OSS, you must infiltrate hostile enemy environments using your stealth and sniping skills and keep the Soviets from shifting the balance of powe…

Far Cry 1 and 2 Collection $6.60 This collection includes far cry 1 and far cry 2 far cry: tropical paradise seethes with hidden evil in far cry a cunningly detailed action shooter that pushes the boundaries of combat to shocking new levels. venture through an utterly realistic tropical island with no limits placed on where you can go or how far you can see. Become embroiled in a thriller movie-style storyline controlling one man…

Zoo Tycoon 2 Endangered Species Expansion Pack $8.99 Invite the world’s rarest animals to your zoo!Product Information[Requires Zoo Tycoon 2 to Play]Zoo Tycoon 2 gives you the chance to build the ultimate zoo and enjoy itfirsthand. You can explore your 3D zoo world as a zoo guest or even care foryour animals as a zookeeper. The Endangered Species expansion pack will give youeven more to love about Zoo Tycoon 2!With the Endangered Species expansion p…

Hunting Unlimited 5 $0.72 The hunting action has never been more real or more exciting than with Hunting Unlimited 5.  With more than 600000 units sold Hunting Unlimited is one of the best-selling hunting franchises. Experience fast-paced hunting action in pursuit of the biggest trophy bucks throughout North America Canada and now the Bavarian Forest! Get the Shot. Get the Game. Wilderness Madness!  Free Hunt Mod…

Star Wars Jedi Knight Lightsaber Action Set …

Kids Army Dressup Accessory Kit Rigid plastic army helmet, mini toy compass, mini toy canteen, toy binoculars and camo drawstring bag. Store all the toy items in the drawstring bag, approx. 8″ x 10″. Not recommended for children under age 3 years. Imported. NOTE: Camo color may vary….

Leather Cell Phone/Camera Bag (#1902-02) $39.99 Crafted by skilled leather artisans, this affordably priced leather case can hold cameras, portable CD players, video games, mini binoculars, and other small items. Dimensions are 4 in. L x 6 in. H x 5 in. W…

STAR WARS Vintage Figures – Episode I DARTH MAUL $7.99 Celebrate the legendary Star Wars saga that changed the universe forever! This collection brings to life the incredible story of good versus evil that captured our imagination and took us to a galaxy far, far away. Iconic Star Wars heroes and villains are captured with incredible detail and premium features to commemorate each epic tale in the Star Wars saga. May the Force be with you!This awesome…