Baader MK3 MPCC Coma corrector. Which one?

[Hailfire101]

Hi guys and gals. 

I am looking at buying the MK3 Baader MPCC coma corrector. 

But I'm slightly confused. Which one do I need? Just the coma corrector or the kit? 

I currently use a Canon Dslr, and a few filters with the the SW coma corrector, but believe this to be a good upgrade. 

https://www.firstlightoptics.com/coma-correctors/baader-mpcc.html

https://www.firstlightoptics.com/coma-correctors/baader-mpcc-visual-photographic-set.html

[Hailfire101]

Is the kit more for CCD imaging?

 

[laser_jock99]

The 'kit' enables the coma corrector to be used visually with eyepieces. For DSLR work you'll only need the coma corrector, a suitable camera adaptor and maybe some spacers.

This photo should help.

[Hailfire101]

Brilliant, thank you. This clears it up for me.

Thank you again. 

[lukebl]

As you already have a SW coma corrector, I'm wondering why you feel the need to get another one?

As point of interest, I have both the SW one which I use with my DSLR, and a Baader one which I use with my CCD. The Baader one doesn't change the focal length, but the SW one changes the FL by 0.9x.

[Hailfire101]

The main reason, is the back focus. I'd like to reduce it, as the SW coma increases it, where the Baader does not. 

Also, hope it may reduce vignette on my images a little.