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Celestron Inspire 100AZ Refractor Telescope

Celestron Inspire 100AZ Refractor Telescope
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Price:  £225.00(Inc. 20% VAT)
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Model:  22403
Brand:  Celestron

Availability  

  

Generally In Stock, Please Confirm Before Ordering



2 Year Warranty On All New Items
(Excluding Batteries & Globes)



The ultimate telescope for the novice to intermediate astronomer, the Inspire 100AZ features the largest aperture in the Inspire family line and its short tube offers a wider field of view perfectly suited for larger, fainter deep sky objects. Packed with features never seen before on entry level telescopes, Inspire features fully coated glass optics, a solid altazimuth mount with a unique asymmetrical design, a sturdy steel tripod with integrated fold-up accessory tray, an integrated smartphone adapter, built-in red LED flashlight, large projected reticle finderscope, erect image optics, and a focus micrometer for easily returning to the same focus point.

The Inspire has the easiest setup of any telescope in its class. Simply pop open the tripod legs, turn the lock knob on the accessory tray, and attach the telescope tube to the base using the quick release dovetail mount. You are now ready to observe!

The lens cap has an integrated smartphone adapter built into it. Place your smartphone against the rubberized friction surface on the outside of the cap so your camera is viewing through the imaging port. Secure the smartphone using the two adjustable bungee cords. The inside of the lens cap has a fitting that secures to your eyepiece using two set screws. Voila! You are now ready to take high power images through the telescope.

The mount has a red LED flashlight built-in. Turn the flashlight on to illuminate your accessory tray with a soft red glow. The flashlight can easily be removed from the mount to provide red light where you need it most.

The focus micrometer is a numbered scale that indicates the focuser’s position. It allows quick return to a specific focus point for specific targets such as a bird nest, infinity focus, etc.

General Details

Easiest setup of any entry level scope. With the folding accessory tray you just pop the tripod legs open, turn the lock knob and you’re ready to go.
Bold new design - The main telescope lens cap comes with a fully integrated smartphone adapter built-in, perfect for the budding astrophotographer. The asymmetrical mount design offers light weight and incredible stability. Erect image optics enables a fully correct image for easy viewing day or night, terrestrial or astronomical.
Red LED flashlight - Stowed in the center of the mount head, the flashlight can be used to gently illuminate the accessory tray or can be removed for use as a spotlight when needed.
Focus micrometer - Allows quick return to a specific focus point for specific targets (bird nests, infinity focus, etc.)
Includes 1 free year of the “SLOOH Astronomer” subscription. Remotely reserve, control, and image through professional grade telescopes, access to livestream SLOOH shows, and many other features
Specifications

Optical Design: Refractor
Aperture: 100mm
Focal Length: 660mm
Focal Ratio: f/6.5
Optical Coatings: Fully coated glass optics
Eyepiece/Magnification
20mm Kellner (1.25”) / 33x
10mm Kellner (1.25”) / 66x
Star Diagonal: Erect image 90 degree (1.25”)
Finderscope: StarPointer Pro
Other Accessories: SkyPortal app
Resolution: Rayleigh: 1.37 arc seconds / Dawes Limit: 1.14 arc seconds
Light Gathering Power: 212x the unaided eye
Highest Useful Magnification: 241x
Lowest Useful Magnification: 15x
Limiting Stellar Magnitude: 12.5
Tripod: Steel, 1.25” diameter, 47” max height
Included Items
70mm telescope tube, mount with tripod and folding accessory tray connected, red LED flashlight, 90 degree erect image diagonal, 20mm & 10mm Kellner eyepieces, StarPointer Pro finderscope, Free download of SkyPortal

Please note the phone is not included. The image is for illustration purposes only. 

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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.

 


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