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View the Latest Correctors, Focal Reducers & Flattener Reviews
Item
Submitted By
GSO 2" Photo-Visual Coma Corrector for Newtonian Telescopes
Very nice quality and clear optics
I am very happy with this GSO coma corrector. It works well with my 2" Celestron EPs, and with my 1.25" EPs using the included adapter. The construction material seems to be good quality. The optics are clear and the machining is tight.
I am very happy with this GSO coma corrector. It works well with my 2" Celestron EPs, and with my 1.25" EPs using the included adapter. The construction material seems to be good quality. The optics are clear and the machining is tight.
Meade Series 4000 f/6.3 Focal Reducer/Field Flattener for SCTs # 07545
Nice focal reducer
Fits on the rear cell assy. with ease, and is no bother taking a lot of room.
Fits on the rear cell assy. with ease, and is no bother taking a lot of room.
Mar 27, 2015
William Optics 2" 0.8x Adjustable Reducer / Field Flattener 4
Fairly Happy
I have had difficulty getting round stars out to the edge of my Atik 383l camera.
I have had difficulty getting round stars out to the edge of my Atik 383l camera.
Baader 2" MPCC Multi Purpose Coma Corrector - New MkIII Version # MPCC 2458400
SUPERB!
I have a Televue type I Paracorr coma corrector and the Baader MPCC is superior in every way, but one. Both fully correct coma, but the Baader has noticably better contrast and light transmission. It's no contest. The Baader is like looking through a...
I have a Televue type I Paracorr coma corrector and the Baader MPCC is superior in every way, but one. Both fully correct coma, but the Baader has noticably better contrast and light transmission. It's no contest. The Baader is like looking through a...
Celestron f/6.3 Reducer Corrector # 94175
Fantastic reducer
I use it with a cpc 9.25 sct and a QHY8L ccd. Works great.
I use it with a cpc 9.25 sct and a QHY8L ccd. Works great.
GSO 1.25" 0.5x Focal Reducer
GSO 1.25" 0.5x Focal Reducer by GSO
Works well on Orion reflector and Meade Mak telescopes and does exactly what it is suppose to do. My only fear is that it screws on loosely to the camera but a little Teflon tape works great solving this fear.
Works well on Orion reflector and Meade Mak telescopes and does exactly what it is suppose to do. My only fear is that it screws on loosely to the camera but a little Teflon tape works great solving this fear.
Antares 1.25" 0.5x Focal Reducer
Item works as described
Not the amount of reduction I thought it would be. I need to be more understanding of image reduction. My fault
Not the amount of reduction I thought it would be. I need to be more understanding of image reduction. My fault
Celestron f/6.3 Reducer Corrector # 94175
Still the Best R/C for SCTs
There are several reducer correctors out there, but Celestron is still the best, IMO. If you want to use 1.25" eyepieces and a 1.25" diagonal, this is the reducer to get. You can use this with 2" accessories, but you may experience some vignetting an...
There are several reducer correctors out there, but Celestron is still the best, IMO. If you want to use 1.25" eyepieces and a 1.25" diagonal, this is the reducer to get. You can use this with 2" accessories, but you may experience some vignetting an...
Antares 1.25" 0.5x Focal Reducer
Quick delivery to Norway - good quality
Astrophotography
Astrophotography
HoTech 2" SCA Field Flattener with T-Thread for f/5 - f/8 Refractor Telescope # FF582
Good flattener, needed more backfocus
Flattener worked great once I got the backfocus correct. For my scope, WO FLT 98, I needed 71mm not the stated 56. Using a QHY8 with 21mm to the chip, a 50mm spacer brought the field nice and flat.
Hope this helps someone.
Flattener worked great once I got the backfocus correct. For my scope, WO FLT 98, I needed 71mm not the stated 56. Using a QHY8 with 21mm to the chip, a 50mm spacer brought the field nice and flat.
Hope this helps someone.
GSO 2" Photo-Visual Coma Corrector for Newtonian Telescopes
Way better than expected!
I use this with my Z12 dob and leave it in the focuser full-time. I added a 1/4" and a 1/2" spacer between the optical section and the 2" eyepiece adapter. This gave me 19mm of additional length. All of my ES82's, ES68's and ES70 come to focus within...
I use this with my Z12 dob and leave it in the focuser full-time. I added a 1/4" and a 1/2" spacer between the optical section and the 2" eyepiece adapter. This gave me 19mm of additional length. All of my ES82's, ES68's and ES70 come to focus within...
Tele Vue 2" 0.8x Reducer / Field Flattener for 400 - 600mm Focal Length Telescopes #...
Use with some caution
While this can be made to work in some systems, I've found that the stated backfocus distance required (~56mm) is inaccurate. While I am not using a Televue scope, I have tried this in a variety of f/6 (Stellarvue, Orion and William Optics) and consi...
While this can be made to work in some systems, I've found that the stated backfocus distance required (~56mm) is inaccurate. While I am not using a Televue scope, I have tried this in a variety of f/6 (Stellarvue, Orion and William Optics) and consi...
GSO 2" Photo-Visual Coma Corrector for Newtonian Telescopes
Low Price & Easy to Use
I use for 12"Dob.
I choosed Easy Use than Best Performance.
I hope to compare this with Paracorr.
I use for 12"Dob.
I choosed Easy Use than Best Performance.
I hope to compare this with Paracorr.
GSO 2" Photo-Visual Coma Corrector for Newtonian Telescopes
Great Service and fast shipping!
Seems like a well built product and a much lesser price than others. Would be helpful to have some user instructions to get the best use out of it.
Seems like a well built product and a much lesser price than others. Would be helpful to have some user instructions to get the best use out of it.
Antares 1.25" 0.5x Focal Reducer
A must have for video astronomy
If you as me use a video camera for astronomy you need a quality focal reducer as the Antares 0.5x, to lower the magnification on the small CCD cameras chips. I use this with a Celestron Nexstar 8se with a Celestron 6.3 focal reducer and the Antares ...
If you as me use a video camera for astronomy you need a quality focal reducer as the Antares 0.5x, to lower the magnification on the small CCD cameras chips. I use this with a Celestron Nexstar 8se with a Celestron 6.3 focal reducer and the Antares ...
GSO 2" Photo-Visual Coma Corrector for Newtonian Telescopes
Great value!
I recently had acquired an 8" f/4 Newtonian and wanted to loose some of the coma inherent in such a fast system. A Paracor was not in my budget, but having read a number of positive reviews about the GSO corrector, I decided to give it a try. While i...
I recently had acquired an 8" f/4 Newtonian and wanted to loose some of the coma inherent in such a fast system. A Paracor was not in my budget, but having read a number of positive reviews about the GSO corrector, I decided to give it a try. While i...
HoTech 2" SCA Field Flattener with T-Thread for f/5 - f/8 Refractor Telescope # FF582
Used with an f/6 102 ED refractor
I bought this to correct the coma in my wide field refractor. Works like a charm! You do need to make sure the spacing between this and your camera's sensor is correct, and small shims, ( I made mine from milk jug plastic!), may be needed. Slightl...
I bought this to correct the coma in my wide field refractor. Works like a charm! You do need to make sure the spacing between this and your camera's sensor is correct, and small shims, ( I made mine from milk jug plastic!), may be needed. Slightl...
GSO 1.25" 0.5x Focal Reducer
GSO 1.25" 0.5x Focal Reducer
I was looking for something to give me a wider view on some nubulas and constellations. This works perfect and I can really recommend it to any-one with the same need. Great product and I like it very much.
I was looking for something to give me a wider view on some nubulas and constellations. This works perfect and I can really recommend it to any-one with the same need. Great product and I like it very much.
Antares 1.25" 0.5x Focal Reducer
Optics great, reducer threads poor
The optics are great but the threads on the adapter for attaching to the eyepiece or imager (1.25") are poorly made. Adapter when screwed on will come off and possibly damage your optics. Ask the seller to check the fit before sending out. Seller wa...
The optics are great but the threads on the adapter for attaching to the eyepiece or imager (1.25") are poorly made. Adapter when screwed on will come off and possibly damage your optics. Ask the seller to check the fit before sending out. Seller wa...
HoTech 2" SCA Field Flattener with T-Thread for f/5 - f/8 Refractor Telescope # FF582
Perfect field flattener for WO Megrez
Perfect field flattener for WO Megrez
Perfect field flattener for WO Megrez
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