SV221 Correct Image Prism Diagonal 1.25inch 45 Degree for Refractor Telescope
1 | ReviewsKey Features
- Accurate Erect Image
- Comfortable Viewing Angle
- Premium Light Transmission
- Secure Brass Locking Ring
- Filter Compatibility
SV221 Correct Image Prism Diagonal
SVBONY SV221 1.25-Inch 45 Degree Correct Image Prism Diagonal Provides Sharp Views That Are Right-Side-Up and Correct Left-To-Right for Refractor Telescope
SV221 1.25" 45 Degree Correct Image Prism Diagonal
the SV221 diagonal mirror has a diameter of 1.25 inches; which can be applied to a 1.25 inches telescope and a 1.25 inches eyepiece
Enhanced aluminum die/coated prism
The main mirror housing is made of precision molded ABS plastic. The two end barrels are precision machined from aluminum, enhanced aluminum die/coated prism with higher light transmittance & clearer vision.
Support connection 1.25inch filter
Built-in prism steering system & support connection 1.25inch filter, internal extinction treatment.
The brass pressure ring design
Brass lock Screw for eyepiece or adapter and brass Compression rings features more precision and prevent barrels or the surface of eyepieces from marring and scratching.
For Moon & Planets Viewing
The 45-deg Correct-Image Diagonal provides sharp views that are right-side-up and correct left-to-right
Package Includes:
SV221 1.25" 45 Degree Correct image Prism Diagonal
3PCS M3 Screws
1PCS Dust Cap
1PCS Dust Plug
SV221 Correct Image Prism Diagonal
SVBONY SV221 1.25-Inch 45 Degree Correct Image Prism Diagonal Provides Sharp Views That Are Right-Side-Up and Correct Left-To-Right for Refractor Telescope
SV221 1.25" 45 Degree Correct Image Prism Diagonal
the SV221 diagonal mirror has a diameter of 1.25 inches; which can be applied to a 1.25 inches telescope and a 1.25 inches eyepiece
Enhanced aluminum die/coated prism
The main mirror housing is made of precision molded ABS plastic. The two end barrels are precision machined from aluminum, enhanced aluminum die/coated prism with higher light transmittance & clearer vision.
Support connection 1.25inch filter
Built-in prism steering system & support connection 1.25inch filter, internal extinction treatment.
The brass pressure ring design
Brass lock Screw for eyepiece or adapter and brass Compression rings features more precision and prevent barrels or the surface of eyepieces from marring and scratching.
For Moon & Planets Viewing
The 45-deg Correct-Image Diagonal provides sharp views that are right-side-up and correct left-to-right
Package Includes:
SV221 1.25" 45 Degree Correct image Prism Diagonal
3PCS M3 Screws
1PCS Dust Cap
1PCS Dust Plug
Customer Reviews
John of all trades
Jul 22, 2024
Bought this so I could use my Astro telescope for terrestrial viewing instead of buying a separate scope. Like most of the SVbony stuff I've tried it's made pretty well for the price point and works well. At less than $25 it's much cheaper than buying a separate scope and I don't have to store another scope so it's a win-win in my book.
Specifications:
| Brand | SVBONY |
| Model | SV221 |
| Size | 1.25 inch |
| Optical Design | Prism Diagonal |
| Inner Connection (Lens Sided) | Thread M28.5x0.6 |
| Outer Connection (Lens Sided) | Barrel 1.25 inch |
| Inner Connection (Eyepiece Sided) | Clamp 1.25 inch |
| Coating | Multi-Coated (MC) |
| Image Orientation | Erect image, non-reversed |
| Optical Length | appr. 86mm |
| Clamping System | Screw Clamps |
| Deflection Angle | 45° |
| Clear Aperture | 19mm |
| Material | Plastic & Metal |
| Net Weight | 79g/2.78oz |
Features：
1. The main mirror housing is made of precision molded ABS plastic and the two end barrels are precision machined from aluminum
2. The 45-deg Correct-Image Diagonal provides sharp views that are right-side-up and correct left-to-right
3. Brass lock Screw for eyepiece or adapter and brass Compression rings features more precision and prevent barrels or the surface of eyepieces from marring and scratching
4.With dustproof cover, can keep the lens cleaning
5. Support connection 1.25inch filter, internal extinction treatment
6. Please Note: This diagonal can only be used with refractor telescopes and some catadioptric telescopes like Schmidt-Cassegrain, Maksutov-Cassegrain, etc. It not meant for use with Newtonian / DOB reflector telescopes or other variants of Newtonian telescopes
