Feature

●It fits all rear cells of Schmidt-Cassegrain telescopes and includes an adapter to use with refractor telescopes.
●The 2" SCT diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images.
●Allows you to take advantage of the wider field of view provided by two inch eyepieces. Dielectric coatings are more durable than regular or enhanced aluminum coatings, so you will enjoy years of excellent performance from this product.
●The SCT Adapter has a standard SCT female thread (2", 24 TPI),you can use your refractor diagonal with all telescopes having a standard SCT thread for which you can attach this diagonal directly to Schmidt-Cassegrain telescopes and many Maksutov-Cassegrain telescopes.
●Associated with 90°mirror diagonals, which let you view objects that are at a 90°angle from the direction the telescope is pointing.Improved attachment design features a brass clamping ring which does not mar, and provides a more secure connection.

Description


	Astromania 2" SCT 90-degree mirror diagonal with 93% reflectivity	Astromania 1.25" 45-degree diagonal prism optical prism inside	Astromania 2" 90-degree mirror diagonal with 93% reflectivity	Astromania 2" 90-degree diagonal 99%	Astromania 2" 45-degree erecting prism diagonal for telescope

Customer Reviews	2	14	16	7	12
Price	$93.99	$24.97	$65.99	$147.97	$187.99
Connection (to the telescope)	2"	1.25"	2"	2"	2"
Viewing posture	90°	45°	90°	90°	45°
Coating of optical system	Dielectric	Fully	Dielectric	Dielectric	Fully-multi-coated
Correction of vertically reversed image	-	✓	-	✓	✓
Correction of horizontally reversed image	-	✓	-	-	✓
Ring clamp	✓	-	✓	✓	✓
Filter thread	✓	✓	✓	✓	✓
Type of build	Diagonal mirror	Amici prism	Diagonal mirror	Diagonal mirror	Amici prism
Type	Deviating optics	Deviating optics	Deviating optics	Deviating optics	Deviating optics
Other contents	SCT Adapter	-	-	Extension tube/2" to 1.25" Eyepiece Adapter	2" to 1.25" Eyepiece Adapter

Astromanias 2" SCT mirror diagonal is an excellent alternative to higher priced diagonals for those on a budget or just getting started in the 2" format. The 2" SCT diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror. The all metal diagonal body is CNC machined. The combined result is a superb diagonal offering excellent mechanical and optical quality.


2" SCT Mirror Diagonal The wider diagonal captures more of the telescopes light cone, perfect for viewing faint, deep sky objects like nebulae and galaxies.	The All Metal Diagonal Body The all metal diagonal body is CNC machined, make the product more durable. A superb diagonal offering excellent mechanical and optical quality.	SCT Female Thread (2", 24 TPI) The SCT Adapter has a standard SCT female thread (2", 24 TPI), you can use your refractor diagonal with all telescopes having a standard SCT thread for which you can attach this diagonal directly to Schmidt-Cassegrain telescopes and many Maksutov-Cassegrain telescopes.


Brass Ring Design Improved attachment design features a brass clamping ring which does not mar, and provides a more secure connection.	90 Degree Comfortable Observation It can be used to observe objects with comfortable angle as you observe from above; its convenient to look at the zenith of the sky and close to horizontal observation.	Thread for Eliminate Light Effectively reduce stray light interference, not only improve the brightness of the image, but also effectively reduce the dark edges formed, the edge details of the image are clearer.

93% Reflectivity & A 1/10 Wave Mirror

The 2" SCT diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images.

Dielectric Coatings

The 2" SCT diagonal features dielectric, comes with dielectric coatings for the most light transmission possible. The residual stress in the plane mirror which can occur with the dielectric vapour deposition process is ruled out here.