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Celestron AstroMaster 90AZ 90mm f/11.1 Refractor Telescope for day and night use with free mobile phone adapter & 2x barlow


Add 2x Threaded Barlow celestron-2500


-limited period offer-till stocks last.

Designed as a capable and portable starter-scope, the Celestron AstroMaster 90AZ 90mm f/11.1 Refractor Telescope is a complete observational platform for making detailed observations of the Moon, planets, or comet-hunting. Its manual alt-azimuth mount's locking altitude clutch and adjustable pan-axis tension knob allows users to easily track objects using the locking pan handle with reduced vibrations. The entire rig assembles and breaks down without the need for tools, so users can set up fast and get observing sooner.


This version of the AstroMaster comes with two eyepieces that yield low and medium magnifications, and a 90° diagonal that sports an integrated erecting prism to correct images and allow the scope to be used as a conventional spotting scope for terrestrial use. The diagonal also places the user's head in a more comfortable position, especially when the OTA is pointed at or near the zenith. An adjustable-height stainless steel tripod supports the mount and optical tube, and comes with a center tray that conveniently holds accessories while improving stability and reducing vibrations.

Optical Tube

90mm aperture

f/11.1 focal ratio

1000mm focal length

Refractor-style optical path

Fully multi-coated optics improve light transmission, color rendition, and contrast

Resolution: 1.55 arcsec (Rayleigh); 1.29 arcsec (Dawes)

1.25" rack-and-pinion focuser

Dovetail mounting plate

Mount and Tripod


Manual alt-azimuth

Locking control handle enables precise adjustments with reduced vibrations

Manual base clutch locks mount in position

Adjustable pan tension ensures smooth movement while tracking objects

Dovetail saddle accepts OTA mounting plate and allows for precise balancing


1.25" tubular stainless steel legs

Adjustable height to accommodate a variety of users and observing positions

Spiked feet to provide stability in rough or soft terrain

Center tray adds stability and vibration-reduction

Included Accessories


1.25" diameter barrel

Accepts most astronomical eyepiece filters

10mm focal length produces 100x magnification

20mm focal length yields 50x power


90° angle places head in comfortable viewing position, especially when aimed at or near the zenith

Integrated erecting prism corrects image for terrestrial viewing as a conventional spotting scope

1.25" snout and eyepiece holder fits and accepts the most common sized focusers and accessories


Permanently-mounted in-place

Unmagnified view ensures easy alignment and fast star-hopping navigation

Red illuminated center aiming dot is easy to see without obstructing small or dim objects

Celestron AstroMaster 90AZ 90mm f/11.1 Refractor Telescope with omni 2x barlow