Celestron Travel Scope 70 DX Portable Telescope With Smartphone Adaptor

Get a new perspective on nature and the Universe with the ideal day-to-night telescope, Travel Scope 70 DX. This refractor telescope includes a full height tripod and lots of bonus accessories, include a smartphone adapter so you can capture images and video through the eyepiece. It all packs up into a high-quality custom backpack—ready to go wherever your adventures take you.

Whether you take it along on your next camping trip or enjoy an impromptu backyard stargazing session, setting up the telescope is a breeze. 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.

By night, Travel Scope 70 DX delivers great views of the planets, the Moon, star clusters and brighter deep sky objects like the Orion Nebula and Andromeda Galaxy. During the day, Travel Scope 70 DX doubles as a spotting scope. Enjoy amazing views of birds, wildlife, boats on the water, migrating whales, and so much more.

The entire telescope kit weighs just 3.3 pounds, so you can take it anywhere, hassle-free.

Smartphone adapter and Bluetooth shutter release

Create your own stunning images and video of celestial or terrestrial objects with the smartphone adapter. With its light, rigid frame, this accessory allows you to connect any smartphone to your Travel Scope’s eyepiece. The additional magnification provided by the eyepiece allows your phone to capture great images of the Moon and planets. This smartphone adapter installs easily by clamping over the top of an eyepiece. The smartphone is held in position with the help of tightening knobs that securely lock your phone in place. To capture the best image, Celestron has also provided a Bluetooth shutter release that allows you to trigger the camera’s shutter on any Android or iOS smartphone remotely, without disturbing the placement of your phone and telescope. NOTE: Some large and/or bulky phone cases (including folio style cases) may need to be removed for the phone to fit in the adapter.

Manual Alt-Azimuth telescope

Navigate the sky confidently with Travel Scope 70 DX’s intuitive pan handle. The Alt-Az control with clutch allows for smooth tracking and accurate pointing. Like a photographic tripod, you can move the clutch in an up/down, left/right fashion to follow your object in the eyepiece.

Deluxe Accessories Included

In addition to the smartphone adapter and Bluetooth shutter release, Travel Scope 70 DX includes a full selection of optical accessories, including two eyepieces (20mm and 10mm), an erect image diagonal, a finderscope, a 2x Barlow lens, and a 1.25” Moon filter. The two eyepieces offer different magnifications so you can view your subject at low or high power. The erect image diagonal allows for more comfortable viewing and right-side-up images. The permanently mounted finderscope will help you locate objects and quickly center them in your telescope’s eyepiece. Lastly, the Moon filter reduces glare and increases contrast on the surface of the Moon.

Travel Backpack

Pack up your optical tube, tripod, eyepieces, and accessories safely and securely in the included custom backpack.

Starry Night Software

Download Celestron’s Starry Night Software and learn about the night sky, celestial objects, and how to plan your next observing session. Celestron Starry Night Software is the premier astronomy software package on the market, providing detailed information, plus tips and tricks for viewing our Solar System and beyond.

Specifications:

OPTICAL TUBE INFO:
Optical Design: Refractor
Aperture: 70mm (2.8")
Focal Length: 400mm (15.74")
Focal Ratio: f/5.7
Focal Length of Eyepiece 1: 20mm (0.78")
Magnification of Eyepiece 1: 20x
Focal Length of Eyepiece 2: 10mm (0.4")
Magnification of Eyepiece 2: 40x
Barlow Lens: 2x
Finderscope: 5x24
Star Diagonal: Erect Image, 45° 1.25"
Optical Tube: Aluminum
Highest Useful Magnification: 168x
Lowest Useful Magnification: 10x
Limiting Stellar Magnitude: 11.7
Resolution (Rayleigh): 1.98 arc seconds
Resolution (Dawes): 1.66 arc seconds
Light Gathering Power (Compared to human eye): 100x
Optical Coatings: Fully Coated glass optics
Optical Tube Length: 431.8mm (17")
Optical Tube Diameter: 98.4mm (3.87")
Optical Tube Weight: 1.5 lbs (.68 kg)

MOUNT INFO:
Mount Type: Manual Alt Azimuth
Height adjustment range (includes mount and tripod): 558.8mm – 1320.8mm (22"-52")
Tripod Leg Diameter: 31.75mm (1.25") Aluminum
Accessory Tray: Yes
Slew Speeds: Manual
Tripod Weight: 1.8 lbs (.81 kg)
Software: Celestron Starry Night Basic Edition Software and SkyPortal App
Total Kit Weight: 3.3 lbs (1.5 kg)

SMARTPHONE ADAPTER INFO:
Phone Compatibility: Any smartphone
Compatible Optics: Fits all 1.25" eyepieces or any eyepiece with an outside diameter of 45mm or smaller
Dimensions: 177.8mm x 101.6mm x 38.1mm (7" x 4" x 1.5")
Weight: 6 oz (170.1 g)
Included Items: Optical tube
Mount and tripod (preassembled)
20mm and 10mm eyepiece
Erect image diagonal
5x24 finderscope
Smartphone adapter
Bluetooth shutter release button
#58 Green Glass Moon filter
SkyPortal App
Celestron Starry Night Basic Edition Software
Manual
Backpack

Solar Warning
Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.
Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.
Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.

Some items that are showing as in stock are in stock at our holding warehouses, not at the shop. To double check the stock levels at the shop, please contact us on 01909774369 or sales@rothervalleyoptics.co.uk.

The delivery times for most items is 1 - 2 days but again, please double check stock levels on important orders before placing an order via the website.

The delivery costs for courier next day are for mainland UK only. If you live in the Scottish Highlands/Islands, Channel Islands or Northern Ireland, then a shipping surchage will apply. please contact us for prices. Smaller items can still go 1st class via Royal Mail.

Please note that if you are wanting to take advantage of our Saturday and Sunday timed services or next day pre 12 or pre 10:30 services, you MUST check that the stock is here at the shop before placing orders. Also, orders using the Saturday and Sunday services must be placed before 1pm the previous working day. Also, please remember to check that the stock is here at the shop before placing orders. If the stock is not at the shop, we won't be able to ship on any of the timed services. 

Please note International customers will need to contact us for a shipping price prior to ordering via the website. We don't ship all items internationally. It is at our discretion what we ship outside of the UK. This all depends on the size and weight of the items. Please get in touch with us for any postage costs. Please note we do NOT ship telescopes or heavy items outside of the UK. This is due to massive postage costs and problems regarding returns.

If you have any questions regarding stock levels or delivery, please get in touch.

Zygo Interferometer Testing For ED Refractor Telescopes!

We are extremely pleased to announce our Zygo Interferometer is now installed and ready for use! Our experienced staff can test refractor lenses up to 120mm aperture and provide a comprehensive 2 page report showing the optical quality and Strehl ratio, plus much more information. We are using the very latest Zygo MX software to provide a more detailed report compared to other standard reports.

The interferometer is essentially a measuring instrument. Within the interferometer is a calibrated laser that is pointed through the optical test surface, then onto a high quality reference sphere, then back through the test subject then to an internal camera which gives us the measurement on the screen. From this, we can adjust the position of the test optic and the reference sphere to obtain a perfectly calibrated system. The more central the laser to the test optic and then on return, the better and more accurate reading and measurement we can take. This takes a lot of adjustment to get the best results from the optical surface. Once the measurement has been taken, we are provided with a series of results that show the optical quality of the surface plus other information. Continue reading for an explanation of the individual values and you can also see a test report that was done on one of our RVO Horizon 60 OTAs. 

We are offering certain telescopes with a Zygo test at an extra cost. Mainly ED doublets and triplets. All available telescopes with a Zygo test report are listed here. Just select Zygo Test Report from the drop down box at the top of the listing and we will test the optics in house and provide a full 2 page report with your scope. This will show you the optical quality of your telescope optics. We can also offer this service on your refractor telescope. Please get in touch for more details about this. 

At Rother Valley Optics, one thing we pride ourselves on is customer service and quality of our equipment. When we test your telescope, we will ensure that it is of the highest quality otherwise, we will reject the scope under our strict quality control and test another model for your peace of mind. One of the main values to look at when testing a refractor is the Strehl ratio. The higher this number, the higher quality lens you have. At Rother Valley Optics, we will guarantee the highest possible Strehl ratio for your telescope.  We will aim to provide 0.95 Strehl or higher on Takahashi, RVO Horizon, William Optics and many more! Generally, the higher the Strehl ratio, the lower the Astigmatism and Coma meaning a better image quality from your instrument. 

Other measurements such as the PV and RMS are important too. With these measurements, the lower the number the better as it shows less curvature on the lens. The flatter an optical lens, the better it will perform. The PV rating (Peak To Valley) is a measurement from the highest point (Peak) to the lowest point (Valley). From this we get the RMS (Root, Mean, Square). This is a similar figure to the PV and measured exactly the same way. The RMS is basically an average height difference from the PV so again, the lower the better. As you can see form the example below, we measured an RMS of just 0.027 wave which is a very good value.

We also measure the Power with our systems which is essentially the error from the reference sphere to the test optic. The reference sphere we use on our system is a very high quality sphere so the closer to zero the Power, the less error between the 2 elements thus ensuring a higher quality optical surface. 

You will also see some more values such as Astigmatism and Coma. Again, these are measured by the interferometer when we take measurements of the optical surface after adjustment. These are values which ideally would be at 0 but as our test optics are all curved lenses, there will always be astigmatism and coma present. The lower the number, the less of these aberations you will effectively see but with most refractors, you can buy field flatteners which will compensate for the coma anyway. The astigmatisms value is explaining the error between the symmetrical curvature of the lens. Basically, no lens will be perfectly symmetrical, the lower the astigmatism, the more symmetrical the lens surface is. 

Once the Zygo test report has been completed, the optical alignment is thoroughly tested and tuned to ensure they are spot on before they leave us. 

All available telescopes are on the website at the link below and ones we've tested already that are available straight away are also listed.

https://www.rothervalleyoptics.co.uk/zygo-tested-refractors.html

Here is an example of the test what we provide. This was a test on one of our Horizon 60 ED OTA's.

For any questions about this amazing new service, please either call 01909774369 or email sales@rothervalleyoptics.co.uk.

Are you interested in this product but would like to speak to someone with some more information? Simply fill in the form below and we will get back to you as soon as we can!

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