7 replies to this topic

[SebaAstro]

Ok XMas is coming and Santa may bring me a new refractor. Which one would you pick between the SV SVX080T-3SV and the AT92 F5.5?

 

I currently have an ES ED80 FCD100 (for wide field -nebulas) and ES ED127 FCD100 (primary for galaxies and planetary nebulas). I am thinking to sell them both and get one EXCELLENT short refractor (80-90 mm range) and cover the same (approx) FoV  range of the two refractors just using either my ASI1600MM-pro and ASI183MM-Pro (my limitation is the average OK seen condition of NE Philadelphia area).

 

Let me have your opinion please!

 

 

 

[PirateMike]

Have you considered a Sky-Watcher Esprit? They can be considered the "best bang for the buck" telescope.

 

Sorry for muddying the waters. 

 

Miguel   8-)

 

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[epdreher]

SV.

[Esso2112]

I assume you are imaging, so with that in mind here are my thoughts. 

 

The SVX80T comes with a dedicated flattener, rings, dovetail and is ready to go out of the box for imaging. It has excellent optics as well, a nice focuser (mine did take a little tweaking to get it just right, including the rotation). 

 

The AT92, I can’t honestly comment on since I’ve never used one. Check the reviews.  My only comment is that it is a fast scope and will have field curvature, so a flattener would be required for imaging. 

 

I would probably go with the Stellarvue if imaging. 

 

For visual only, I might go with the AT92 to get the widefield views. I have a 92mm f4.9 that is stunning for wide field visual. 

[peleuba]

AT92.   It’s a great lens.  

[aa6ww]

AT-92 is an amazing scope in every way. As impressive as the optics are, the focuser is as good as the best I have ever used in any refractor ever.

 

...Ralph 

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[Jon Isaacs]

The AT92, I can’t honestly comment on since I’ve never used one. Check the reviews.  My only comment is that it is a fast scope and will have field curvature, so a flattener would be required for imaging.

 

Field curvature depends on focal length and focal ratio. Both scopes are fast, both scopes are similar in focal length. One is slower and shorter, one is faster but longer, these should cancel.

 

Both require a flattener for imaging. The SV comes with one, the AT will require purchasing one.

 

Jon

[Gene3]

The build quality of the SVX080T-3SV is excellent and the 3" focuser is smooth. SV customer service is also excellent.