Mamiya 645 lenses

[Klubman]

Hi All
I have a 45mm C series lens, the filter size is 77mm, I believe the N series is a 67mm filter, does that mean it is smaller and lighter?
Are N series lenses better than the C series in particular the 35mm.
Lastly was the 110mm made as a N series lens?
Thanks
Nigel

[Krzys]

N series was made later. Ill scan in and post my pamphlet with all of the 645 lenses and details. I dont know about the difference between the series though.

Weight and filter size is listed ect:

[Klubman]

Thanks for that
My 45 weighs in at 540 grams compared to the N at 475
Nigel