List Price: $121.95 $79.01
At Amazon on 11-19-2011.
Features
70 mm 2.8" refractor
Quick and easy no-tool setup
3x Barlow lens triples the magnifying power of each eyepiece
Erect image optics - Ideal for terrestrial and astronomical use
The SkyX Planetarium Software with 10,000 object database and enhanced images
Amazon.com Review
Celestron's value priced PowerSeeker 70AZ is an affordable entry level telescope with some nice extras like a correct image prism and "The Sky" astronomy software included. The package also includes an Alt-Azimuth mount with adjustable aluminum tripod, high and low power eyepieces, a 3X barlow lens, and a 5 power cross hair finder scope.
The PowerSeeker 70AZ comes disassembled in a compact box, but the fully illustrated quick set-up guide makes it easy to assemble. Go ahead and try it out in the daytime, that's the best time to align the finder scope while looking at a distant tree or telephone pole.
The optics of the PowerSeeker 70AZ are surprisingly good, especially when I use the low power 20mm eyepiece. The correct image prism and the 20mm eyepiece give me a magnification of 35X, so backyard birds seem five times closer than with my seven power binoculars. The PowerSeeker 70 can be upgraded with standard 1.25 inch telescope eyepieces. A 25mm plossl eyepiece for example gives a true field of view of almost 2 degrees for delightful views of star clusters like the Pleiades, while a 6mm eyepiece provides a magnification of 117X, just right to see the rings of Saturn or the cloud bands on Jupiter. The included 4mm eyepiece (175X magnification) might be too much power: I can see Saturn's rings but at 175X it's not easy to focus and it's not easy to keep planets centered in the field of view.
The Alt-Azimuth mount included with the PowerSeeker 70AZ is lighter and easier to use than an Equatorial mount, but it does not track stars and planets. As soon as you get the Moon centered in the eyepiece it starts drifting toward the edge, this is caused by rotation of the Earth. The Moon may stay in the low power eyepiece for two or three minutes, but with the high power 4mm eyepiece (175X magnification) a star will disappear in only twenty or thirty seconds.
Celestron's PowerSeeker 70AZ is a real value because it has very good achromatic optics in a package that's light, portable and affordable. The drawback is that it has a lot of plastic parts, including the finder scope and the 3X barlow. For a more rugged alternative, take a look at Celestron‘s AstroMaster 70 AZ which comes with better eyepieces and includes a sturdier Alt-Azimuth mount. --Jeff Phillips
Pros:
Very good optics
Correct image prism
Easy no tool set-up
Light, portable, and affordable
Cons:
Light weight tripod
Does not track stars and planets
Plastic finder and barlow lens
Moon as seen with the low power eyepiece, 35X
Crater Clavius shot with a Neximage camera, 280X
Planet Saturn shot with Neximage camera, 280X
Deer over 100 yards away shot at 35X
Birdfeeder about 50 feet away shot at 35X
Owner Reviews, Ratings, Comments and Criticism Let me preface this review by saying that this is an under $100.00 telescope. With that considered, let me say that this may be one of the best values available in that price range. I opened the box and was pleased to see that everything was perfectly packaged as if I had pay 5x the price for it. Everything was pretty solid. There are some plastic parts, but they are not the important ones. The finder scope is plastic as well but it works and you won't be looking through that much anyways.
I regularly use a higher end 10" Dobsonian reflector, so there is no comparison, but I wouldn't take my expensive scope over to the beach at night and expose it to sand and salt either ( no light pollution over the ocean ). The lenses supplied are better than expected, except that a 9 or 10mm might be more appropriate than a 4mm, but once again....consider the price. The tripod and fork mount are rather stable and the views are great ! I think that the contrast and clarity are great as well as the overall construction of the main tube. The focuser is not the best, but works, and with a little TLC will get you where you need to be.
I was lucky enough to grab mine last week when Amazon had them for only $59.00, so I really lucked out !!!! If you are looking for a solid yet simple beginner, travel, super portable, or backup scope and don't want to spend a fortune - BUY THIS !!!! - You will not regret it.
Celestron 21036 PowerSeeker 70AZ Telescope (Black)
Available from Amazon
Updated on 11-19-2011.