Coma corrector

[Connor brad]

Hi I have a skywatcher explorer 200p f5 what's the best coma corrector that would work well on my scope is it worth buying a paracorr? 

[Wyvern]

Hi,

For interest, I run a 8" SkyWatcher reflector at f/5 and don't use a coma corrector at all.

Never really felt it necessary though to be fair, the scope is mainly used for imaging and not visual use, so any "iffy" stars at the edges of the field of view can simply be cropped out as reqd in processing.

Unless you are totally convinced you need a corrector, save your money.

Regards, Les

[Wyvern]

Just found this thread which may give you a DIY alternative.

Regards, Les

 

[Whistlin Bob]

I have a 200p that I use for imaging and I use Skywatchers own coma corrector- for visual the coma isn't really had enough to trouble me, although others don't like it. It works well with both DSLR and dedicated astro cameras, plus gets me imaging at f4.5. 

I do sometimes have reflection issues with NB filters and very bright stars that are worse when the cc is in the image train.