Wide field of view and smart extras: the largest Inspire
The Celestron Inspire 100AZ is the fast top-tier model of the Inspire line. The 100 mm lens with a short focal length of 660 mm provides a wide field of view: the Orion Nebula, the Pleiades, or the Andromeda Galaxy fit entirely within it. Without a secondary mirror in the light path, all collected light goes directly to your eye, more than 200 times as much as with the naked eye.
The smart Inspire extras
The steel tripod features an illuminated accessory tray; the red light can be detached as a flashlight. The red dot finder projects two circles so bright objects remain visible while aiming. The dust cap includes a built-in smartphone adapter for your first astrophotos, and the focuser has a scale for repeatable focusing. The 20 mm and 10 mm eyepieces deliver 33x and 66x.
Honest advice: where this design excels
The short focal length is made for wide sky fields, star clusters, and comets, and with the upright image also for daytime nature observation. At high magnification on bright planets, a short achromat shows some chromatic aberration; those who are mainly looking for sharp planetary and lunar detail are better off choosing a model with a longer focal length such as the AstroMaster 90 CG-3. Realistically usable is up to about 200x.
What's in the box?
- Optical tube 100/660 achromat
- Azimuthal mount
- Steel tripod with illuminated accessory holder (removable as a flashlight)
- 20 mm and 10 mm eyepieces (1.25 inch)
- Dust cover with built-in smartphone adapter
- Red dot finder with dual reticle circle
- Vertical image for earth observation
Recommended accessory
- A moon filter (1.25 inch) mutes the bright moonlight from this spacious opening.
| Specification | Celestron Inspire 100AZ |
| Optical design | Refractor (achromatic) |
| Opening | 100 mm |
| Focal length | 660 mm |
| Opening ratio | 1/6.6 |
| Maximum useful magnification | 200x |
| Light output | 204x compared to the naked eye |
| Mount | Azimuthal |
| Eyepieces | 20 mm (33x) and 10 mm (66x) |
| Additional | Smartphone adapter in dust cap, illuminated accessory holder, double-circle red dot finder |
Still unsure about the right model? Our Buyer's guide for beginners and the telescope selection aid help you step by step. Also check out all the Refracting telescopes or the full range on the Celestron brand page. You can read more background information about the brand in the Celestron brand guide.
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