Best Diagonal Mirror For Telescope

Prettyia 0.965 Inch/90 Degree Erecting Image Diagonal Mirror for Refractor Telescopes and Astronomical Telescope Eyepieces

. With wide 90 degree angle , it is comfortable for you to view image from refractor telescope stand..
. High-quality ensures high light transmission and provides high defination images..
. Use the 90 degree diagonal mirror with a refractor telescope, the image is upright, with left and right reversed..
. Compatible with 0.965 inch telescope eyepieces..
. The fully coated lens are provided with caps to keep your lens clean and clear..

The Orion pentaprism diagonal is ideal for use with the Orion Premium linear binoviewer because the combination renders an upright non-mirror-reversed image.
The pentaprism diagonal incorporates a pentagonal-shaped prism of BK-7 glass that is multi-coated and dielectric coated for maximum Light Transmission.
It features a 1 25" Non-marring compression ring Collar and a tapered barrel for secure attachment to a telescope.
With a generous clear Aperture of 29mm The pentaprism diagonal will not cause image igniting even when used with long focal length wide-field eyepieces.

High-quality prism ensures high light transmission and provides high defination images..
The fully coated lens are provided with caps to keep your lens clean and clear..
With wide 90 degree angle , it is comfortable for you to view image from refractor telescope stand..
Use the 90 degree diagonal mirror with a refractor telescope, the image is upright, with left and right reversed..
Compatible with 0.965 inch telescope eyepieces..

work with refractor and catadioptric telescopes.
keep your lens clean for superior image fidelity.
you can view correct image from refractor telescope stand and just look down with a comfortable angle .
1.25" 90 degree diagonal mirror using with refrator telescope and makes the image upright.

The precision flat mirror in this 90 degrees diagonal is meticulously polished to yield excellent performance.
Anodized aluminum housings are internally blackened for high contrast views free of glare.
Fits 1.25" telescope focusers, accepts 1.25" eyepieces.
Enhanced Aluminum mirror coatings yield 97% reflectivity for bright clear views.

90 diagonal features sophisticated, lab-tested dielectric coatings that boast an astounding 99 percent reflectivity.
Dielectric mirror coatings are more durable and more reflective than enhanced aluminum coatings.
Diagonal provides a comfortable 90-degree viewing orientation when observing the night sky through a refractor, Maksutov-Cassegrain (Mak-Cass) or Schmidt-Cassegrain telescope.
Machined and anodized aluminum housing features machine-threaded baffles for optimized contrast.
1.25" nosepiece barrel is threaded to accept like-sized Orion eyepiece filters.

This grab-and-go TableTop Maksutov-Cassegrain telescope provides powerful views of the Moon and bright planets such as Jupiter, Saturn, and Mars.
Weighing just 6.5 lbs. assembled, this compact telescope and base can be taken just about anywhere to provide great views of the night sky while on road-trips, camping, or the short trip out to the backyard.
90mm aperture Maksutov-Cassegrain telescope gathers enough light for beautiful views of brighter deep space objects like globular clusters, nebulas, and many bright galaxies.
Nifty tabletop base provides a stable viewing foundation you can set on any sturdy table, or even attach it to a field tripod with a 3/8" or 1/4"-20 threaded post.
Includes two 1.25" eyepieces (25mm and 10mm focal lengths), EZ Finder II reflex sight for easy aiming, 90 degree mirror diagonal for comfortable night sky viewing, and more!.

1.25" 90-degree mirror star diagonal for any telescope with 1.25" connector (not suitable for Newtonians)..
More comfortable viewing orientation as you observe from above, filter thread for any 1.25" filter. Accepts standard 1.25" eyepieces..
Protective coating on the mirror to ensure a long life, metal barrel - for secure seating in the focuser..
Useful for refractor and Cassegrain telescopes - not recommended for reflectors..
Wide 90 degree angle: You can view correct image from refractor telescope stand and just look down with a comfortable angle..

POWERFUL REFRACTOR TELESCOPE: The Celestron AstroMaster 90AZ Refractor telescope is a powerful and user-friendly refractor telescope. It features fully-coated glass optics, a sturdy and lightweight frame, two eyepieces, a StarPointer red dot finderscope and an adjustable tripod..
HIGH-QUALITY 90MM OPTICS: The heart of the system is a fully-coated 90mm primary mirror. The AstroMaster mount features a panning handle that allows you to make precision adjustments to view celestial and terrestrial objects..
QUICK SETUP & LIGHTWEIGHT FRAME: This telescope for adults and kids to be used together features a lightweight frame and a manual Altazimuth mount for smooth and accurate pointing. Setup is quick and easy, with no tools required..
INCLUDED ACCESSORIES: We’ve included 2 eyepieces (20mm and 10mm), a tripod, erect image star diagonal, and a StarPointer red dot finderscope. Accessories also include a FREE download of one of the top consumer rated astronomy software programs..
UNBEATABLE WARRANTY AND CUSTOMER SUPPORT: Buy with confidence from the world’s telescope brand, based in California since 1960. You’ll also receive a two-year warranty and unlimited access to technical support from our team of US-based experts..