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SV221 Correct Image Prism Diagonal 1.25inch 45 Degree for Refractor Telescope

SKU: W9178B
-20% US$ 19.19
List Price: US$ 23.99
  • Enhanced Aluminum Die; the SV221 diagonal mirror is designed with enhanced aluminum mold; which has higher light transmittance and clearer vision
  • 1.25 inches diameter; 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
  • With a brass pressure ring; the SV221 diagonal mirror has a brass pressure ring; which can prevent surface damage and scratch marks when the eyepiece is used with the SV221
  • Supports 1.25-inch filters features internal extinction treatment and supports the connection of 1.25-inch filters; Offering versatility for various observations
  • With filter thread; the SV221 diagonal mirror has M28.5x0.6mm filter thread; which supports the connection of 1.25 inches filter
  • 90 degrees design; the SV221 diagonal mirror 90 degrees deflection angle design; you don't have to bend over when performing visual observation; and the observation experience is more comfortable
  • Internal extinction design; the SV221 diagonal mirror has internal extinction treatment; and the acquired image is clearer and brighter

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.

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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

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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

1 reviews

Write a review

No need to buy a separate expensive spotting scope

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

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