GSO 2" 90-deg Mirror Diagonal for SCTs
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- Economical 2" SCT diagonal with 92% reflectivity across visible spectrum
- Glass mirror polished to 1/10-wave for bright and true images
- All-metal body with SCT barrel
- Comes with 2"-1.25" eyepiece adapter for maximum flexibility
GSO's 2" SCTmirror diagonal is an excellent alternative to higher priced diagonals for those on a budget or just getting started in the 2" format. This diagonal features Al + SiO2 coatings with 92% reflectivity across the visible spectrum and a 1/10 wave mirror. This GSO diagonal offers excellent mechanical and optical quality at a great price.
You can attach this diagonal directly to Schmidt-Cassegrain telescopes and many Maksutov-Cassegrain telescopes, as long as there is a SCT male thread on the telescope. The standard SCT thread is a 2"x24tpi thread.
A 1.25"-2" adapter is included so you can use this diagonal with 1.25" or 2" eyepieces. The 1.25" and 2" holders both feature a brass compression ring, so your eyepiece barrels will not be scratched by the set screw. The 1.25"-2" adapter is also threaded to accept 2" filters. The clear aperture is 38.2mm.
Includes 2 end caps. Weight = 1lb-6oz. (with 1.25" adapter); 1lb-3oz. (without 1.25" adapter). Made in Taiwan.
Please note: Even though the eyepiece holder and the SCT adapter of this diagonal have standard SCT (2"x24TPI) threads that will work with other SCT threaded items, the threads on the body of the diagonal are NOT standard SCT threads. The thread diameter on the diagonal body is 2" but the thread pitch is very slightly different (not 24TPI) and has not been specified. GSO ensures that these components that they machine fit together, but SCT-threaded adapters from other brands will not thread on properly or at all to GSO's 2" diagonal bodies in most cases due to this marginally different thread pitch.
| Free Shipping Graphic | Free US Shipping |
|---|---|
| Hide Found a better Shipped Price on Frontend? | No |
- Economical 2" SCT diagonal with 92% reflectivity across visible spectrum
- Glass mirror polished to 1/10-wave for bright and true images
- All-metal body with SCT barrel
- Comes with 2"-1.25" eyepiece adapter for maximum flexibility
GSO's 2" SCTmirror diagonal is an excellent alternative to higher priced diagonals for those on a budget or just getting started in the 2" format. This diagonal features Al + SiO2 coatings with 92% reflectivity across the visible spectrum and a 1/10 wave mirror. This GSO diagonal offers excellent mechanical and optical quality at a great price.
You can attach this diagonal directly to Schmidt-Cassegrain telescopes and many Maksutov-Cassegrain telescopes, as long as there is a SCT male thread on the telescope. The standard SCT thread is a 2"x24tpi thread.
A 1.25"-2" adapter is included so you can use this diagonal with 1.25" or 2" eyepieces. The 1.25" and 2" holders both feature a brass compression ring, so your eyepiece barrels will not be scratched by the set screw. The 1.25"-2" adapter is also threaded to accept 2" filters. The clear aperture is 38.2mm.
Includes 2 end caps. Weight = 1lb-6oz. (with 1.25" adapter); 1lb-3oz. (without 1.25" adapter). Made in Taiwan.
Please note: Even though the eyepiece holder and the SCT adapter of this diagonal have standard SCT (2"x24TPI) threads that will work with other SCT threaded items, the threads on the body of the diagonal are NOT standard SCT threads. The thread diameter on the diagonal body is 2" but the thread pitch is very slightly different (not 24TPI) and has not been specified. GSO ensures that these components that they machine fit together, but SCT-threaded adapters from other brands will not thread on properly or at all to GSO's 2" diagonal bodies in most cases due to this marginally different thread pitch.
| Free Shipping Graphic | Free US Shipping |
|---|---|
| Hide Found a better Shipped Price on Frontend? | No |
GSO 2" 90-deg Mirror Diagonal for SCTs