Showing posts with label telescope. Show all posts
Showing posts with label telescope. Show all posts

Televue 2.5x Powermate 1.25 inch (1-1/4 in.) Review

Televue 2.5x Powermate 1.25 inch (1-1/4 in.)
Average Reviews:

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Excellent product that delivers exactly what is promised. My husband loves this lens and tells me that his telescope is a much better scope because of this lens.

Click Here to see more reviews about: Televue 2.5x Powermate 1.25 inch (1-1/4 in.)

Tele Vue Barlows: "An Optically Perfect Window " Properly designed Barlows do wonderful things. First, they amplify power while retaining the eyepiece's eye-relief. Second, they slow the telescope's f/#, which improves eyepiece sharpness. Third, the designer can introduce compensations for eyepiece aberrations.The 2.5X Powermate Barlow is a 4-element parfocal, compact amplifying lens system. POWERMATE consists of a negative achromatic doublet plus a positive "pupil-correcting" doublet. While it looks and functions like a Barlow, your eyepiece will operate with pupil locations where the designer intended, avoiding mismatch problems. POEWRMATE optimally mates its power to your eyepieces. No additional "interface lens" is needed, since POWERMATES have it built-in.In addition to full multi-coating, POWERMATE includes other Tele Vue special touches such as a safety undercut on the chrome barrell, and captive lock screws that can't fall out. Tele Vue's 100% QC program at f/4 insures that POWERMATE will add dramatic power (and NOTHING ELSE) to your favorite eyepieces. If, for example, you own a 22mm Panoptic, you'll have the power of an 8.8mm focal length eyepiece with the 2.5x POWERMATE. The POWERMATES are constructed to be parfocal with Tele Vue's 1-1/4" 90 degree diagonal (often used in Ranger telescopes) adding convenience not previously available with any Barlow. The 2.5X POWERMATE has no filter threadsDobsonian/Ne

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Orion T-ring for Minolta Camera Review

Orion T-ring for Minolta Camera
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This T-ring works as advertised. Along with the appropriate T-adaptor for your telescope you can use it to mate your manual focus Minolta camera body to your telescope. The T-ring has threads on one end that screw into your T-adaptor (or even directly to some telescopes) and a bayonet mount for your camera on the other end. This allows a solid connection for your camera to the telescope.

Click Here to see more reviews about: Orion T-ring for Minolta Camera

A T-ring converts a camera's lens mount to a standard "T-thread," allowing you to couple a camera body to a camera adapter or, in some cases, directly to the focuser of a telescope. All camera adapters, including Celestron and Meade T-adapters and universal camera adapters, will fit this T-thread. Have a new digital SLR camera? We've got the T-rings you'll need. The #5224 T-ring fits the Canon 300D Digital Rebel, also the 10D, 20D, 20Da, 30D, 350D, and 5D digital SLRs. For Nikon owners, the #5205 T-ring is compatible with the Nikon D50, D70, D70s, and D200.

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1.25" Orion Variable Universal Camera Adapter Review

1.25 Orion Variable Universal Camera Adapter
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I bought this along with the Orion T-ring for my digital Canon Rebel Xt and am very happy with this product. It has been a childhood dream of mine to see the planets and space as never before, and now I can capture those moments on my camera and put them on my computer. For any avid photographer or an amateur wanting to get some good pictures of space, this adapter is a must-have. Do not forget to buy the T-ring as well to fit the camera make you have.

Click Here to see more reviews about: 1.25" Orion Variable Universal Camera Adapter

Universal camera adapters allow attachment of a camera body to reflector or refractor telescopes for both prime-focus and eyepiece-projection photography. The adapter slides into the eyepiece holder as an eyepiece normally would. The adapters are composed of two detachable parts: a prime-focus adapter (or "T-adapter") for prime-focus photography, and an extension tube for eyepiece-projection photography. A setscrew in the extension tube holds the eyepiece in place. The adapters are compatible with 1.25" focusers. Each is precision made of black-anodized aluminum and is threaded for filters. A T-ring, sold separately, is required to couple your specific camera body to the universal adapter.

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Meade 1.25-Inch Basic Camera Adapter for Telescope Review

Meade 1.25-Inch Basic Camera Adapter for Telescope
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This adapter works fine in my etx-90, however it's tuff to fit it with the 26mm eyepiece, which is not a major problem b/c I usually use an 18 or smaller. Other than that, this is a good item.


Click Here to see more reviews about: Meade 1.25-Inch Basic Camera Adapter for Telescope

Your telescope. Your camera. For photographing the moon, planets and stars through your telescope using 1.25-Inch eyepieces. Accepts an eyepiece that will project an enlarged image onto the camera film plane or CCD chip. Each camera requires a separate T-mount.

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Orion T-Ring, Canon EOS (including Digital Rebel) Review

Orion T-Ring, Canon EOS (including Digital Rebel)
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I shoot with my Canon Rebel Xt and this T-Ring from Orion is a perfect fit. I attached it to my Meade EX80t telescope and could not be any happier. This T-ring along with the camera mount are perfect for any photographer wanting to get the perfect picture with your telescope!

Click Here to see more reviews about: Orion T-Ring, Canon EOS (including Digital Rebel)

A T-ring converts a camera's mount to a standard T-thread, allowing you to couple a camera body to a camera adapter or, in some cases, directly to the focuser of a telescope. All camera adapters, including Celestron and Meade T-adapters and universal camera adapters, will fit this T-thread. Have a new digital SLR camera? We've got the T-rings you'll need. The #5224 T-ring fits the Canon 300D Digital Rebel, also the 10D, 20D, 20Da, 30D, 350D, and 5D digital SLRs. For Nikon owners, the #5205 T-ring is compatible with the Nikon D50, D70, D70s, and D200.

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Celestron CPC 1100 StarBright XLT GPS Schmidt-Cassegrain 2800mm Telescope with Tripod and Tube Review

Celestron CPC 1100 StarBright XLT GPS Schmidt-Cassegrain 2800mm Telescope with Tripod and Tube
Average Reviews:

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I bought this telescope primarily for visual use. I almost decided to get a smaller aperture. However, after seeing the telescope size and comments on it's handling, I decided it would be light enough for me to setup alone. The telescope tube and fork are pretty heavy. However, the ergonomics are very good such that lifting the tube isn't too bad (carried close to your body).
I was seriously tempted by the Meade LX200R 10" and 12" scopes. In the end I decided the ergonomics on the Celestron were better and it was quite a bit cheaper (Celestron 11" was cheaper than Meade 10"). The fork mount is perfect for visual use since it can be setup very quickly. I suspect the Meades would be better for serious imaging if mounted on an equatorial mount. I was concerned about getting a telescope shipped to my home, but in the end it wasn't damaged in transport.
I love the goto features of the scope. Using the handheld controller you can quickly find objects in the sky. I find the built in database quite good for visual objects. I quickly started using the Constellation view mode (view objects in a constellation) to reduce the amount of slewing across the sky.
I find the auto-sky-align feature to work pretty well. This alignment mode is great since you don't need to know star names; just pick 3 bright stars. However, it is prone to occasionally fail alignment and 3 stars take more time than 2 stars. To eliminate the alignment failure and decrease the alignment time (2 stars only), I now primarily use auto-2-star align despite the fact you need to know the star names.
The 10x50 finder scope is not terribly good but does the job.
My focus knob is not as smooth in turning as some telescopes in the store. I notice this more as the scope is near the horizon. There is quite a bit of mirror shift when focusing but this is a Schmidt-Cassegrain characteristic. It took me some practice to obtain fine focus. I plan to order a feathertouch focuser to get finer control over the focus.
My telescope was shipped with the GPS turned off. To turn it on you must go deep into the menus. I also discovered that you must set your scope to the proper daylight savings time setting or some stars will be out of range.
The cord wrap feature sometimes annoys me. This feature tries to prevent wrapping the power cord. However, I usually watch for this problem anyhow and the cordwrap feature sometimes forces longer than necessary telescope slews. Cord wrap gets turned on automatically after every alignment.
The tripod seems pretty heavy duty and comes with a nice heavy eyepiece tray. My tripod did not come with a leveling bubble. Placing the telescope fork on the tripod is pretty easy. Once you manage to grab the center guide pin with the fork, you simply need to rotate the base until the scope falls into the retention screw cutouts. Sometimes finding the center guide pin can take about 30 seconds but you get better with time.
Optically the scope seems pretty good so far. You can see the Cassini division of Saturn and banding on Saturn and Jupiter. It took me a while to figure out collimation. I ordered a set of Bob's knobs and played with the collimation for a while to get the hang of it. I have tried to perform a star test and didn't get a perfect diffraction pattern on either side of focus. I believe there is possibly a slight downturned edge in the mirror from looking at the diffraction patterns. However, so far objects in the telescope look great and I am not an optical expert anyway.
I have used the Neximage web cam for Lunar and planet images. The images turn out great. I have also tried some limited piggyback photography. All of my viewing and imaging so far has been from my backyard in a suburban light polluted area. I am able to see quite a few galaxies and nebula from my backyard.
Celestron technical support is a bit slow in responding to inquiries through their web site.
Overall, this is a great scope for visual use.

Click Here to see more reviews about: Celestron CPC 1100 StarBright XLT GPS Schmidt-Cassegrain 2800mm Telescope with Tripod and Tube

Tomorrow's next generation 8, 9.25, and 11 computerized GPS SCT's are here now!New alignment technology, advanced engineering, and bold new design at a lower price that is out of this world!Celestron's new CPC Series with revolutionary SkyAlign Alignment Technology redefines everything that amateur astronomers are looking for: quick and simple alignment, GPS, unsurpassed optical quality, ease of set-up and use, ergonomics, enhanced computerization and, most important, affordability.

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Celestron 93635-A T-Adapter for NexStar 4GT Review

Celestron 93635-A T-Adapter for NexStar 4GT
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The Celestron 93635-A T-Adapter connects the rear cell of a NexStar 4 or C90 scope to a T-ring (sold seperately) which is designed to fit your specific camera. There isn't much to the adapter -- just a threaded metal tube with a metal screw-on ring on one end. Note that you will need to use your camera in fully manual mode though the camera's internal light meter will probably function normally allowing you to set the shutter speed for a proper exposure during daylight hours.
While the T-Adapter does function as advertised, it suffers from a design flaw -- the connecting tube is too narrow causing severe vignetting (i.e., the corners of phtots are cut off and appear very dark or black) at least for a 35mm full frame camera mounted to a C90. I have not tried it with a C-sized digital camera yet. Due to the severity of vignetting, you might want to consider an alternative model of T-Adapter or, better yet, a Tele-Extender designed for Schmidt-Cassegrain telescopes such as the Orion 1.25" Standard Tele-Extender which can be used in place of a T-adapter on the C90, doesn't suffer from these sever vignetting problems and is much more versatile.
Note: A tele-extender is similar to the T-adapter but is designed to optionally allow you to place a telescope eyepiece inside - between the scope and the camera - for even higher magnification. For example, with the T-adapter, a C90 can function as a 1200mm manual camera lens. With a tele-extender, it can do the same or, by adding a 18mm eyepiece, act as a 5000mm or greater lens.

Click Here to see more reviews about: Celestron 93635-A T-Adapter for NexStar 4GT

A T-Adapter allows you to attach your 35mm SLR camera to the prime focus of your telescope or spotting scope. This arrangement is used for terrestrial photography and short exposure lunar and planetary photography. It can also be used for long exposure deep-sky photography when using a separate guidescope.Both a T-Adapter and T-Ring are required to mount a camera to your instrument.

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Celestron 21061 AstroMaster 70 AZ Refractor Telescope Review

Celestron 21061 AstroMaster 70 AZ Refractor Telescope
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I have been a backyard stargazer for several years. My very nice 8" Dobsonian Reflector became too much to haul to darker skies away from light pollution, so I have been indoors on starry nights for a couple of years now. When a local camera shop was going out of business, they had a fabulous blow-out price on a Celestron AZ70 Refractor. I know two things about refractors 1) beware of flimsey tripods and 2) beware of extravagant claims of HIGH POWER. I first noticed intelligent power claims on the box (60X per aperture inch TOPS). The Celestron AZ70 suits all my needs. It's compact and light enough to transport easily, it has GREAT optics and a VERY macho tripod and Starfinder with a bright reticle which nailed Venus in 1 easy try right out of the box. Absolutely the best 50 bucks I ever spent and I would GLADLY recommend it to anyone for 4 times that price.

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TE3)CELESTRON ASTROMASTER 70AZ SCOPE

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Celestron 52250 80mm Ultima Zoom Spotting Scope Review

Celestron 52250 80mm Ultima Zoom Spotting Scope
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I originally bought a Raven from Eagle Optics. But I returned it. Raven was $400. It had poor eye relief and poor image quality but very good scope construction (housing, cordura case etc). I went to Cabela's and tried the usual high-end suspects as well as Meopta, and Cabela's ED (Big Sky?). Thought I was going to have to resign myself to spend the big bucks 'someday'. But, I persisted and stopped by Ryder Hobby shop 'just to check it out'. Am glad I did. The Celestron Ultima 80 gave me the 'wow' factor I thought I was going to see in Raven and only saw in the highest end scopes. Well made, crisp images, you cannot beat it for the price. As good if not better than the Cabela's ($700) scope. I can recommend it. Bought it for $239. Also compared the C5 and other C90 scopes. Not nearly as good either.Would have been neat to check out the 80 ED, but they did not have it and it runs twice the price. I read all the same on-line reviews you probably have, and I can't figure out how this one did not figure much more prominently or how the Raven got such good reviews. Raven reminds me of my old Tasco binoc's. I'm very happy with the Celestron 80. Saw wood ducks, ring necks, Sand Hill Cranes all this evening approaching twilight with exceptional clarity. Even allows for T-ring mount for camera I read. Hope this helps.

Click Here to see more reviews about: Celestron 52250 80mm Ultima Zoom Spotting Scope

SO)CELESTRON ULTIMA 80 45 Degree

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Opteka T-Mount Adapter for Canon EOS Rebel T3i, T3, T2i, T1i, XS, XSi, XTi, XT, 60D, 50D, 40D, 30D, 20D, 7D, 5D, & 1D Digital SLR Cameras Review

Opteka T-Mount Adapter for Canon EOS Rebel T3i, T3, T2i, T1i, XS, XSi, XTi, XT, 60D, 50D, 40D, 30D, 20D, 7D, 5D, and 1D Digital SLR Cameras
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The Opteka T-Mount Adapter for Canon EOS enabled me to fit a 500mm vivitar mirror lens to a Canon eos digital camera, giving me a focal length of 700mm! The depth of field is quite shallow because of the fixed aperture of f8, but I have been able to get very close to birds and animals unnoticed. The adapter saved a lens that would have otherwise gone unused. It is useful for all your manual focus T-mount lenses.

Click Here to see more reviews about: Opteka T-Mount Adapter for Canon EOS Rebel T3i, T3, T2i, T1i, XS, XSi, XTi, XT, 60D, 50D, 40D, 30D, 20D, 7D, 5D, & 1D Digital SLR Cameras

An accessory ring available in Canon EOS mount which converts the lens mount of your SLR camera to a T-Mount.

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Bushnell 1.25" Camera Adapter for any Reflector or Refractor Telescope. Review

Bushnell 1.25 Camera Adapter for any Reflector or Refractor Telescope.
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Product works grate with my Rebel XTi cam. Good pricing but I waited for a week and half as I opted for the Free shipping. It perfectly fits my Telescope. This is durable and I recommend this to any one who required it.

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Available Accessories:1.25" Format 25 mm Kellner Eyepiece, 1.25" Format 9 mm Kellner Eyepiece, 1.25" Format Erecting Prism, 1.25" Format Camera Adapter, 1.25" Format 2x Barlow Lens, and Clock Drive.

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Celestron 93625 Universal 1.25-inch Camera T-Adapter Review

Celestron 93625 Universal 1.25-inch Camera T-Adapter
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T-adapters can turn your telescope into an amazing telephoto lens and this one will work with any that have a 1.25" visual back. This piece has a 1.25" inserting slip connector which replaces the Star Diagonal on your telescope and the title given by Celestron is entirely misleading, it refers to a generic measurement of an inch (actually 1.25"). The faulty description continues in the product description: it WILL NOT FIT .96" visual backed telescopes such as the Celestron C90, or the Nexstar 4GT. In that case you'll need this part Celestron 93635-A T-Adapter for NexStar 4GT Those telescopes have a .96" visual back and the T-adapter has a female ring which screws over the visual back.
In either case you still need a T-Ring to connect to your camera, be careful there too as there are now ones for 58mm digital cameras that are larger than the older 35mm.
Getting Amazon to change these descriptions is difficult so hopefully this review can correct it.

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T-Adapter, Universal - 1-1/4"

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Celestron NexStar 6 SE Telescope Review

Celestron NexStar 6 SE Telescope
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We used our scope for the first time recently. I had read the manual and a lot of online materials before we received our scope so I was somewhat familiar with how to use it. I input our location using our place's longiture and latitude and used the unit's "two star" alignment setting since I could only make out two bright stars in our light-polluted location (Tokyo, Japan). After this, I input "Jupiter" into the hand controller and the scope slewed to the planet and placed it right in the center of the eyepiece's field of view. My family and I spent the next hour letting the scope swing around to various stars and binary systems that I couldn't see with my unaided eyes but showed up beautifully in the eyepiece. I recommend taking a look at Albireo in the list of "named stars" on the hand controller very highly.
I knew that a telescope, much like a camera, is a device that needs accessories. Therefore, before I bought the scope I purchased (used) a 9mm ocular, a barlow lens, a better star diagonal and a battery pack to power this thing. The car battery adapter I purchased with the scope. A lot of people don't use a case so I can understand why Celestron didn't include one with this to keep the price down. One of those plastic storage boxes should work well if you use the foam that comes with the scope to keep it in place.
The optics of the telescope and the special coatings on the optics are a great improvement over what I experienced 20 years ago with my first 5" SCT scope. The images are sharp and this scope is suitable for both planetary viewing and deep space objects. However, the deep space objects will require you to find a dark site to be really visable. Our first night of viewing included a look at M13, a globular cluster. It was there but the local light pollution required me to use "averted vision" to see it.
I highly recommend this product for those who want to get into Astronomy at a reasonable price. There are bigger scopes out there but the prices and size of these telescopes make this one a great compromise on size, performance and "bang for the buck." I don't think that you will be disappointed. You will need a few accessories but buy those as you need them.

Click Here to see more reviews about: Celestron NexStar 6 SE Telescope

Get serious performance and easy portability with this high-quality altazimuth computerized telescope.Features:6" Schmidt-Cassegrain telescope with 150mm aperture44% more light gathering power than 5" models1500mm focal lengthFocal ratio: 10Ultra portable – weighs 30 lbs. including the tripodCombines the classic heritage of the original orange tube telescopes with the latest state-of-the-art featuresStarBright XLT high transmission coatings come standardCelestron's unique patented single fork arm with integral hand control design provides a rigid and smooth operating structure for the optical tubeStar diagonal provides more comfortable viewing position when observing objects that are high in the skyProven NexStar computer control technologyIncludes:Quick release fork arm mount, optical tube and accessory tray for no-tool setupStarPointer finderscope to help with alignment and accurately locating objectsSturdy computerized altazimuth mountInternal battery compartment to prevent cord wrap during useUltra sturdy steel tripod with accessory tray40,000 object database with 200 user-definable objects and expanded information on over 200 objectsSkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment processFlash upgradeable hand control software and motor control units for downloading product updates over the InternetAutoguider port for long exposure astrophotographyDC Servo motors with encoders on both axesCustom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable star; solar systems; objects and asterismsDouble line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of GOTO featuresNexRemote telescope control software and RS-232 cable included for advanced control of your telescope via computerGPS-compatible with optional CN16 GPS Accessory (93968)Whether you are a seasoned ast

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Nikon 7234 Action 10?22 X 50mm Binoculars Review

Nikon 7234 Action 1022 X 50mm Binoculars
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As a backyard astronomer and novice outdoorsman, I know that serious users of binoculars will tell you that zoom binocs are almost never recommended. Zoom binocs tend to have a lot of problems with being usable at higher magnification. Even with another $80 pair of zooms, I end up seeing a crossing of views (or blackout) through the left and right eyepieces with even moderate increase in magnification. That being said, this pair of Nikon Action zoom binocs is probably the best pair of zooms you can get. I find them to actually be usable throughout most of range, though stability (shaky hands) are an issue once you reach high magnification (unless you are using a tripod). The fact that they work this well, though, is pretty much a miracle. Nikon quality really proves itself here. If you are dead set on one pair of binocs, and those being zooms, then I recommend these as your only real choice.

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22 x 50mm - Prism Binoculars

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