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Celestron Inspire 100AZ Beginner Refractor Telescope with Phone Adapter

  • Based on 322 reviews
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Availability: In Stock.
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Arrives Wednesday, Sep 30
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Size: Inspire 100AZ Refractor Telescope


Features

  • Easiest setup of any entry level scope. With the folding accessory tray you just pop the tripod legs open, turn the lock knob and youre ready to go.
  • Bold new design - The main telescope lens cap comes with a fully integrated smartphone adapter built-in, perfect for the budding astrophotography.
  • 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.)
  • 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.
  • UNBEATABLE WARRANTY & SUPPORT: Buy with confidence from Celestron, a leading telescope brand in California since 1960. Your purchase includes a 2-Year US Warranty and unlimited support from our team of US-based experts.

Description

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 finder scope, 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.

Brand: Celestron


Model Name: Inspire 100AZ Refractor


Optical Tube Length: 43.6 centimeters


Eye Piece Lens Description: 20mm and 10mm Kellner eyepieces


Objective Lens Diameter: 10 centimeters


Telescope Mount Description: Altazimuth Mount


Product Dimensions: 32"D x 32"W x 55"H


Focus Type: Manual Focus


Power Source: Manual


Finderscope: StarPointer™ Pro red dot finderscope


Eye Piece Lens Description: 20mm and 10mm Kellner eyepieces


Mount: Altazimuth Mount


Focus Type: Manual Focus


Power Source: Manual


Finderscope: StarPointer™ Pro red dot finderscope


Compatible Devices: Smartphone


Number of Batteries: 1 Lithium Metal batteries required. (included)


Coating: Fully Coated


Focal Length Description: 660 millimeters


Field Of View: 0.92 degrees


Dawes Limit: 1.14 arc_sec


Zoom Ratio: 21


Additional Features: Built-in Smartphone Adapter, Integrated Red LED Flashlight, Asymmetrical Mount Design, Focus Micrometer


Optical-Tube Length: 43.6 centimeters


Objective Lens Diameter: 10 centimeters


Item Dimensions D x W x H: 32"D x 32"W x 55"H


Item Weight: 12.4 pounds


Exit Pupil Diameter: 50 millimeters


Brand: Celestron


Model Name: Inspire 100AZ Refractor


Age Range Description: Adults


Global Trade Identification Number: 31


Item Highlight: Great First Telescope for Families, Grab-and-Go Short-Tube Refractor, Capture the Moon & Planets with Your Phone, Easy Setup


Unit Count: 1 Count


Manufacturer: Celestron Acquisition LLC


UPC: 050234224031


Number of Items: 1


Built-In Media: 20mm and 10mm Kellner eyepieces, 90° erect image diagonal, Mount with tripod and folding accessory tray connected, Optical tube, Red LED flashlight


Item Type Name: Celestron Inspire 100AZ Refractor Smartphone Adapter Built-In Refracting Telescope, Blue (22403)


Model Number: 22403


Manufacturer Part Number: 22403


Warranty Description: TWO-YEAR LIMITED WARRANTY


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great telescope!
Bought as a Christmas gift and just used. Was able to see the moon very well. Kids love it. Sight included needs to be calibrated with the telescope. I didn’t get the chance but still was able to spot the moon without it. Haven’t tried the included software yet
Reviewed in the United States on December 26, 2025 by Jake

  • Nice telescope
I’m a casual backyard astronomer and I bought this to leave out near my back door to check out a few planets or the moon.I like the way this is built. It looks and feels very solid. It’s a good looking telescope. It’s obviously not that James Webb, but for the money, I think it’s a good deal and I enjoy it. Also, the finder scope works well although it’s a little confusing to figure out how to use it for the first time. ... show more
Reviewed in the United States on April 4, 2025 by Julia Ingate

  • Easy to use with features that the BIG scopes do ...
Easy to use with features that the BIG scopes do not have such as highly useful removable red flashlight embedded above accessory tray. Also the scope cap doubles as smart phone holder for astrophotography. Lightweight, quality sight, crisp optics, and neat focus indicator numbers on side of scope for easy return to reference. Stable tripod configuration with locking accessory tray for added sturdiness. Nothing flimsy about the tripod. Bought exclusively for solar eclipse but already see that we will be using it for more sightings. Also, we ordered the 100AZ model which arrived in a sealed 70AZ box but opened anyway to find the 100AZ as ordered. Manufacturer hiccup maybe. Easy to align red sight with scope which we did in less than 2 minutes. Excellent value! ... show more
Reviewed in the United States on June 18, 2017 by Pipercub

  • Unexpected benefits
Very nice home use telescope. Definitely stretches the human eye considerably. Very stable, easy to move around, nice looking. The unit comes with two lenses that Very considerably offering a very wide range of application. One unexpected benefit is you can take pictures through the eye piece that provide great photos that can be saved, printed, etc. ... show more
Reviewed in the United States on October 31, 2025 by Trudy Bennett White

  • Great beginner scope, even my 7 year old can use it.
My son (7) received this as a birthday present from his grandparents. He has been asking for a telescope since his 4th birthday. He had a small kids scope that barely helped him find the moon and was difficult to look through. My mother wanted something that he could use, but also be able to find what he was looking at and see clearly. This hit the nail on the head. The finder scope was easy to calibrate, and my son is able to find and align the moon and some starts on his own. He needs adult supervision and some help occasionally, but we love that the telescope has encouraged his love of space and not been a discouragement. We also purchased a kit from Celestron that included a moon filter and a 15mm lense and I believe it was smart addition. Even the adults have been amazed by the detail we could see. It also works wonderfully as a day scope. The only downside is the mount can be a bit wobbly and is very easy to bump even when locked, made it difficult to keep on stars as they moved out of view. (But for our beginner purposes this was wonderful). ... show more
Reviewed in the United States on December 19, 2019 by Jolly

  • Great for a beginner!
I have never owned a telescope. This was so easy to set up. I did order a Celestron moon filter kit due to the brightness of the moon. Received it just in time for the Parade of Planets. Now, the planets just look like bright stars through it, although we are pretty sure we saw the rings of Saturn. I do recommend for general moon watching. Or even wildlife/landscape. I am a review reader. And I usually start with the bad lol. BUT, sometimes, the low star ratings are meh. I recommend this for the money, if looking at the moon and some small constellations is what you prefer. ... show more
Reviewed in the United States on March 11, 2025 by Mitch

  • A ok
Great telescope
Reviewed in the United States on April 16, 2026 by Dale Newkirk

  • Frustrating
Not a good telescope. It’s very difficult to center an object in the field of view because it doesn’t turn easily.
Reviewed in the United States on August 17, 2024 by sukhraaj s.

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