Which Coma Corrector?

[Earl]

I need a Coma Correct for my Sky Watcher 250, the basic options appear to be the Sky Watcher one or the Baader version.

Any advice or other alternatives?

[Pete Presland]

i am no expert but i have bought the skywatcher for my 200pds and it performs very well.i would go as far to say that i could not believe the difference it made and do not use the scope without it.

[steppenwolf]

I only have experience of the Baader version and it works very well indeed but on my older version 250 with the R & P focuser, I had to fabricate my own adapter to achieve sufficient inwards focus travel. A more modern lower profile focuser may be fine though.

[nicnac]

could always look at the televue paracorr if you fancy parting with a wad

[RikM]

I have the Baader MPCCC and it's great.

[Moonshane]

I got a used Paracorr for about £160. This is a superb tool and completely adjustable. Works superbly well. If you can afford one then I'd strongly recommend it.

[Mr Spock]

I used the Baader with my SW 250mm.

Rather than use it at a general setting, I got the right sized extention tubes to fit it directly to my main eyepiece (22mm T4 Nagler). Here's a good resource for all the different settings:- MPCC

[lukebl]

I have both the SW Coma Corrector and the Baader one. I haven't done a scientific test, but they seem pretty identical in performance to me.

There is a reason I have both. I originally had the SW one, but was having issues with image distortion with my new SXVF-H9 which I put down to the coma corrector. So I bought the Baader one and found I was having exactly the same problem. I subsequently found that it was all due to focuser sag, and there was nothing wrong with the SW one!

Now that I have two, I use the SW one for DSLR imaging, and the Baader one with my CCD.

[angusb1]

I used the Baader with my SW 250mm.

Rather than use it at a general setting, I got the right sized extention tubes to fit it directly to my main eyepiece (22mm T4 Nagler). Here's a good resource for all the different settings:- MPCC

Thanks for this, a very useful link.

[Earl]

Cheers for the input I have ordered the Baader

[Dimon Hell]

Greetings astronomers!

Right now i'm choosing between SW CC and Baader MPCC and after few rewievs i think MPCC shows better performance, i mean it have less aspherical distorsion, than SW CC, but i'm not so shure...