Baader coma corrector

[reddoss]

Does any one here use a Baader multi-purpose coma corrector with a SW 250P DS ?

If so, do they produce good corrected images, or is it best to use the SW coma corrector and a SW M48 ring?

Cheers

[lukebl]

Does any one here use a Baader multi-purpose coma corrector with a SW 250P DS ?

If so, do they produce good corrected images, or is it best to use the SW coma corrector and a SW M48 ring?

Cheers

Yes I do. In fact I have both the Baader one and the SW one.

The SW one worked really well indeed with my Canon DSLR, but since I got a CCD, I just can't seem to get the images right. The stars are slightly elongated, but I think it's something to do with me not getting the spacing or alignment quite right. The small CCD and a longish focal length is rather unforgiving, so the spacing is critical.

But don't let me put you off! The Coma Corrector is essential with the 250PDS, and will work fine as long as you get the spacing right.