Svbony SV222 Erect Prism Diagonal 90 Degree 1.25-inch with Anti Reflection Coating Metal for Refractor Telescope - W9179B

• 90-degree design; SV222 90 degree diagonal mirror provides a better observation experience when visually observing
• Extinction thread; Extinction thread prevents stray light from entering; ensures observation quality
• 1.25 inches thread; 1.25 inches SV222 telescope diagonal can connect filter; meet various needs of customers
• Locking mechanism; SV222 90 degree diagonal mirror ensure the stable installation and use of the eyepiece; not easy to fall off
• 99% high reflectivity; telescope accessory have large amount of light transmission; good imaging effect

Features

1. High-quality 90-degree erecting prism with anti-reflection coating allows for good contrast and bright images.
2. Entirely aluminum, black anodized eyepiece holder, large, chromed thumbscrews.
3. Internally blackened and baffled to prevent internal stray light reflections.
4. 1.25" eyepiece holder comes with anti-marring brass compression ring.\
5. Accepts 1.25" eyepieces, fits in 1.25" focusers.
6. For terrestrial or astronomical use, this diagonal produces a right-side-up, non-reversed image with correct daytime orientation
7. Not recommended for use in Newtonian reflector or DOB reflector telescopes
   
8. Tips：But all Prism Diagonal-no matter how good they are – suffer from one design feature: There is a line going through the center of the image, where both sides of the prism surfaces come together. This may cause reflections or spikes. To some extent, this will always happen when a bright object like a star is viewed in front of a dark background like the night sky. This should be obvious only with very bright stars or planets.

SVBONY SV222 high-quality 90-degree erecting prism with anti-reflection coating allows for good contrast and bright images. For terrestrial or astronomical use, this diagonal produces a right-side-up, non-reversed image with correct daytime orientation.

Fully Multi-Coated 

Effectively reduce reflection and scattering on the surface of the lens, improve image clarity and detail expression.

Matting & Thread Design

Absorb excess light, prevent light reflection interference, and provide clearer and more accurate observation images.

Thread design ensures the stability and reliability of the observation device, reducing shaking and shaking during observation

Matting Velvet On Side Panels

Absorb excess light, prevent light reflection interference, and provide clearer and accurate images

Brass Pressure Ring

SV222 diagonal 90 degree protects the eyepiece from being worn by the screw; the eyepiece can be changed quickly without affecting the stability of the entire optical system.

Eyepiece Anti-contact Stopper Design & Cone Anti-drop Insert

This design not only enhances the durability of your equipment but also ensures optimal performance by maintaining the alignment of optical components.

Support Standard 1.25 Inch Filter Installation

SV222 erect prism diagonal 90 degree is designed with 1.25 inches thread, which can connect filter and meet various needs of customers.

Strong and durable

SV222 erect prism diagonal 90 degree with all metal construction, durable steady for a long-term use.

Comparison Before & After Use

For terrestrial or astronomical use, the mirror produces a face-up, non-inverted image with correct daytime orientation.

Package Includes

SV222 1.25" 90 Degree Metal Correct Image Prism Diagonal
1PCS M4 Screws
1PCS Dust Cap
1PCS Dust Plug

 

Specifications

Brand	SVBONY
Model	SV222
Size	1.25inch
Optical Design	Prism Diagonal
Inner Connection (Lens Sided)	Thread M28.5x0.6
Outer Connection (Lens Sided)	Barrel 1.25inch
Inner Connection (Eyepiece Sided)	Clamp 1.25inch
Coating	Anti-reflection coating
Image Orientation	Erect image, non-reversed
Optical Length	approx. 65.6mm
Clamping System	Screw clamps
Deflection Angle	90°
Clear Aperture	19mm
Body Material	CNC Metal Aluminum
Prism Material	BK7
Net Weight	153.8g/5.43oz