The Multi Purpose Coma Corrector Mark III eliminates coma across the full photographic field without manipulating the focal length.
The proprietary lens design has Phantom Group wideband multicoating on all air to glass surfaces and the large lenses deliver completely vignetting-free exposures with larger sensors. The coating treatment delivers the highest transmission combined with the lowest amount of scatter and reflections across a very wide spectral range from UV to NIR.
The new Mark III has been designed for Newtonian telescopes from f3.5 to f7. Stars remain pinpoints across the field and the visual use likewise is made much easier - with the help of the 2" (M48) male filter thread at the eyepiece facing side.
Baader MPCC Multi Purpose Coma Corrector installed on Canon 6D DSLR.
|Telescope side connection
||2" barrel with 2" filter thread (female)|
|Camera side connection
||T2 (M42 x 0.75) and M48 x 0.75 (male)|
|Backfocus distance||55 mm from T2 thread, 58 mm from M48 thread|
|Clear aperture||44 mm (with M48 connection)|
The guy who sold me the telescope so many years ago said something about "when you get serious you will need a coma corrector" That was a long time ago and when i started taking astro images I found out exactly wheat he meant. The Baader has fixed all the issues I was having. You do have to be careful with the distance between the CCD and the Coma corrector but that's not a big deal, just read the instructions...
I needed the Baader due to not wanting to make my rig any longer from the focuser than I had to. I'm aware there are other brands but i cannot comment on them. All I know is that now all my stars are sweet and round. :-)