Celestron 21035 Travel Scope 70 Portable Refractor Telescope Kit with Backpack, Black, 70mm

Product Information

Overall, the Celestron Travelscope 70 is perfect for beginners or anyone who loves traveling and exploring the night sky without compromising on quality. Setting up the telescope is a breeze and will have you observing in no time. Even on your first time out, you can assemble the telescope and its accessories in just a few minutes. The adjustable tripod legs allow you to customize the telescope’s height or place it on raised surfaces like a picnic table. The total telescope kit weighs in at just 3.3 pounds—perfect for impromptu observing sessions or transporting wherever life’s adventures take you.

Celestron 21035 Travel Scope 70 Portable Refractor Telescope

The Travelscope 70 comes with 20mm and 10mm Kellner eyepieces, providing 20x and 40x, respectively. The construction of both is largely metal, the field of view is decent and the images reasonably sharp, although not as good as a decent Plossl or wide-field eyepiece. However, the choices in focal lengths were poor on Celestron’s part. The 20mm Kellner provides a little too much power for the scope for low-power sweeping, while the 10mm, though decent in quality, provides too much magnification for the scope’s poor-quality optics. The TripodThe Celestron NexStar 130SLT Computerized Telescope comes with a very large aperture and good eyepieces. It’s great for photography, though its need for collimation hurts its value. Fifth place belongs to the Celestron 114LCM Computerized Telescope, which has a very large aperture and two eyepieces but suffers from poor power efficiency and a shaky mount. Sixth place is taken by the Celestron 21061 AstroMaster 70AZ Refractor Telescope, which provides a smooth position and easy setup but loses value because of its shaky tripod and smaller size. Secondly, the included diagonal that comes with the scope is of lower quality than what one might expect from a travel scope in this price range. While it’s serviceable and will allow you to view objects right-side-up (which is important for terrestrial viewing), it may introduce some image distortion or reduce overall image brightness. Lastly, while the focal ratio of f/5.7 makes this scope quite fast, allowing for brighter views of deep-sky objects like galaxies and nebulae, it also means that there is a smaller margin of error when focusing. This can make it more difficult for beginners who are still learning how to properly focus their telescopes. However, with practice and patience, focusing should become easier over time. As a spotting scope, the Celestron TravelScope 70 works. It would be okay for use at a shooting range or for casual birding. The tripod is stable enough when pointed horizontally, and the optics are sharp enough with the low-power eyepiece for the views to be of some value, and aiming the telescope by sighting down the tube works well enough. This refractor telescope features an equatorial mount and a 70mm aperture with a 700mm focal length. It comes with 10mm and 20mm Plossl eyepieces. Plossl eyepieces effectively reduce the halo effect and chromatic aberration, both of which can diminish your viewing overall experience. Plossl eyepieces also create a brighter image so you can get a clear picture of a variety of planets and other celestial objects.

Celestron 21035-ADS Travel Scope 70 Refractor Telescope Kit

The prism diagonal is the next most urgently needed replacement. Keep it around for comparison or for when you want to do terrestrial observing, but it’s just no good for serious astronomy. The Celestron Travel telescope features a 70mm aperture and comes with 10mm and 20mm eyepieces included, achieving either 20x or 40x magnification. Its highest theoretical magnification reaches 165x, its focal length is 400mm, and has a focal ratio of f/5.71. A 5×24 finder scope attaches to the side of the main scope. Plus, a top-rated astronomy software is also included to help you locate and view specific objects in the galaxy. The Orion Nebula showed its bright core easily, though somewhat softly, and hinted at the tenuous outer layers of gas and dust. Three stars in the trapezium were easily resolved, and the fourth wasn’t too difficult at 40x. At low power, the entire Orion’s Sword stellar association is visible and very pretty, with the nebula showing up as a fuzzy blob in the middle. After my first half hour using the telescope, I was exhausted trying to work around its awful mount. However, in that time, I was able to observe the Double Cluster in Perseus, the Orion Nebula, and the Andromeda Galaxy, and I was pleased enough by them to not immediately write off the telescope as a failure.

The idea of a wi-fi-enabled telescope is good, but the Celestron Astro Fi 102 fails to live up to most users’ expectations. Its big selling feature is that it comes with a wi-fi card, so you can connect it to your home network or to a cellphone, and control it through your smartphone. There’s also a cellphone adapter, which allows you to take pictures and use your cellphone as a screen so multiple people can view the image at once. The two eyepieces are a 20mm and a 10mm Modified Achromat (a variant of a Kellner eyepiece that has three elements). They have fairly wide fields of view, sharp centers, and passable edges. They’re nothing special, but they’re far better than what many beginner telescopes come with, and they definitely work for this purpose. Not compatible with #93648 Off-Axis Guider, not compatible with #93519 2" Mirror Diagonal (discontinued)

Celestron - 70mm Travel Scope DX - Portable Refractor Celestron - 70mm Travel Scope DX - Portable Refractor

With a focal length of 400mm and a magnification range of up to 165x, this telescope can capture stunning images of celestial bodies such as planets, stars, and galaxies. Overall, the stability and versatility offered by the Celestron TravelScope 70 tripod make it an excellent choice for those who want a reliable telescope for both terrestrial and astronomical observations.Celestron’s CGEM mounts have always proven to be popular, but if you find the motor isn’t working as well as it should, you can swap it out with a Celestron Motor Assembly. This motor and encoder assembly works with either the RA or Declination axis of the mount, making this a convenient, cost-effective solution. The Celestron ExploraScope 22103 114AZ Reflector Telescope is priced like a beginner’s telescope, but it has some shortcomings that make it a poor choice except for those who really want to learn. On the plus side, it has a stable mount and tripod, so you won’t have to worry as much about that part interfering with your operation. There’s a 114-millimeter aperture, which is fairly large for the price. The included 2x Barlow lens is a nice touch, increasing what you can do with this telescope and its eyepieces without driving the price up too much.

Celestron Travelscope 70: A Great Little Telescope For Travel Celestron Travelscope 70: A Great Little Telescope For Travel

With the 45-degree prism, the Moon was aesthetically pretty at low powers but a bit of a rainbow mess at 40x and higher. With the mirror diagonal, the moon became much sharper and you could really begin to appreciate its features. I found the 40mm sub-aperture-mask dustcap it comes with wasn’t really needed; it’s plenty sharp enough even at 67x, and there’s no chromatic aberration noticeable until you overpower the scope to about 167x. (Maximum useful power would be around 100-130x) It held its own against a cheap 70mm long-focus achromat and the ShortTube 80. If you’re looking for a portable and easy-to-use entry-level telescope that is perfect for travel, the Celestron Travelscope 70 might just be what you’re looking for. This 70mm refractor telescope is designed to be lightweight and easy to transport, making it the ideal companion for any astronomer who loves to travel. What is the Celestron Travelscope 70? This refractor telescope is equipped with premium-quality optical components that provide clear and crisp images of celestial objects. I went out one night to compare my Orion ShortTube 80 (optically identical to the Celestron TravelScope 80’s objective lens) with the TravelScope 70. By my calculation, the difference between the two shouldn’t have been especially noticeable, but it definitely was. The view of Caldwell 64, the Tau Canis Majoris Cluster, was so much dimmer than the view through the ST80 that it required averted vision to suspect there was more than one star, whereas the ST80 showed it with a sparkly halo easily. The ST80 could just barely do the two bright components in the Leo Triplet, while I couldn’t see them at all in the TravelScope 70. The overall character of the images was the same (to be expected when observing at the same magnification), but the TS70 was dimmer than it should have been, which confirms that the effective aperture was stopped down. After a rest indoors, I set the telescope up again with my good tripod, the mirror diagonal off my Orion ST80, and a red dot finder, and I went out and had a lot of fun with it. It isn’t a powerful telescope, but I personally enjoy small telescope observing quite a lot. The wide-field views you can get with small short telescopes make up for the small aperture, so you can fit a lot of stars in the eyepiece.I was not able to see any details in the Andromeda Galaxy M31–the satellite galaxy M32 was only suspected, and there was no hint of the fainter M110. All I could see was a ghostly pale core of the galaxy, and this was the one object that was especially disappointing in comparison with what other small scopes of mine had shown. The Celestron Travelscope 70 has many features that make it a great choice for anyone who wants a portable 70mm travel scope. Some of the features of this telescope include a tripod, two eyepieces, a finder scope, a diagonal, and an altazimuth mount. What is the aperture of the Celestron Travelscope 70?