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[25585]

I am wondering if Siebert could make a Paracorr quality coma corrector that would not vignette a Nikon NAV HW 17mm eyepiece at its 17mm setting i.e. without the 14mm setting EiC fitted.

 

What fitting interior measurements would be needed to accomodate the eyepiece so no vignetting at all takes place?

[bgman]

I use a Baader MPCC mk3 on mine with a 7mm 2” barrel extension between it and the eyepiece and it doesn’t vignette. It works pretty well. I use a P2 for everything else. I am quite satisfied with the views this way. I understand there is some SA with higher magnification but with this exit pupils it works very well.