Bresser or GSO?

[Andreiiorg]

Hi! After gathering more knowledge about this topic I'm stuck between 2 8"dobs:

https://astromagazin.ro/telescoape/3261-telescop-bresser-dobson-8.html with a red dot finder, 25 SP and most important, after me, 2.5 hexafoc focuser single-speed (because it gives no coma);

https://www.astroshop.eu/telescoape/gso-telescop-dobson-n-200-1200-dob-deluxe-version/p,14189 with 8x50 scope, Erfle 30mm 2", SP 9mm 1,25", a 2" Crayford with 1:10 micro-reduction, a cooling fan

For any of them I want to buy an Celestron X-Cel eyepiece for planetary( I don't know what to choose between 5mm,7mm or 9mm) and a 2x Barlow or a 1:10 gear if I go with the Bresser.

I want firstly to go on planetary observing but after some time and on DSO.

Hope that someone can give me an advice.

Clear skies!

[Nightspore]

They're probably both good. The GSO looks like it has the better focuser as it is dual speed.

 

 

I have an f/6 150mm GSO Newtonian. The focuser is only single speed but it's smooth and accurate. The optics are good as well. One caveat with a Dob' mount though, they're not ideal for lunar/planetary tracking at high magnifications as Right Ascension will move the target very quickly in the field of view. So the wider angle the eyepiece you use the better.

[Andreiiorg]

Thanks! I have made some simulations and the best option at eyepieces would be 9mm with 2x barlow. For any of the telescopes I will have the 2 speed focuser, for the bresser i ll buy one and the prices are going to be equal. So if anyone can give advice about the telescope to buy.

Clear skies!

[Nightspore]

6 hours ago, Andreiiorg said:

Thanks! I have made some simulations and the best option at eyepieces would be 9mm with 2x barlow. For any of the telescopes I will have the 2 speed focuser, for the bresser i ll buy one and the prices are going to be equal. So if anyone can give advice about the telescope to buy.

Clear skies!

 

Why not just get a 4.5mm eyepiece? Either way, the AFOV of the eyepiece will be important tracking at high speed with a Dobson mount.

[Marmot]

The scopes both look very nice. I have no experience with Newtonian so can’t make any direct comparisons between the two, however the dual speed focuser does seem a nice feature.

 

For planetary work you will clearly be after a reasonable magnification: You mention that you like the sound of a Celestron X Cel LX, but don’t discount the TMBs that Nightspore put a link to. He reviewed them in the review section and they are very reasonably priced.

 

Welcome to the forum by the way. Having been a member for about a year I can only say that I have found the folks on here very informative.

[Andreiiorg]

Thanks!