RB67 "C" lenses and Regular Lenses?

Travis Nunn · Feb 14, 2006

I'm looking to buy another lens for my RB67 and, other than age, I'm not clear on what the differences are in the "c" and non "c" lenses are. I've read numerous posts here on APUG where someone will say the "C" lenses are better, but there is never a reason given as to why they are better. Can anyone shed some light on this?

bohica · Feb 14, 2006

Not sure about the 67, in the 645 line the C only designated multi coating from back when it wasn't the norm, new lenses are designated N, but from what I've read, it's only a cosmetic change in the lens barrel and the optics are still the same.

Travis Nunn · Feb 14, 2006

Is it worth the extra money for the multi coating?

rogueish · Feb 14, 2006

I've read arguements that say always go with coating and others that say coatings are no longer needed as much now since everyone shoots with filters that are already coated.
If I remember correctly, the non C had problems with light flares. The coating it supposed to almost eliminate (or at least reduce) this.
After looking at a lot of lens for my other camera (Nikon 35mm), and they were ALL coated, I figured, you can't go wrong with it. I doubt it would hurt the final image, and the $ difference isn't really all that much anyway.
Myself, I bought the "C" lenses.

Travis Nunn · Feb 14, 2006

you're right, its not that much of a difference in money. i just wanted to reassure myself that my money was being spent wisely. thanks.

MattKing · Feb 15, 2006

Another thing to think about ...

In general, the "C" lenses are newer than the non "C" versions.

Given that the RB67 lenses include shutters, it may be an advantage to buy a newer lens, as compared to an older one.

Marco Gilardetti · Feb 16, 2006

bohica said:
Not sure about the 67, in the 645 line the C only designated multi coating from back when it wasn't the norm, new lenses are designated N, but from what I've read, it's only a cosmetic change in the lens barrel and the optics are still the same.

That's not correct with the RB67: some lens' design has been radically changed from non-C to C type. I'll be glad to check on my tables at home if you need some specific information.

I hope it's clear for everyone that non-C lenses are coated as well. C are "multi-coated". It's on the end user to decide wether "multi-coating" makes such a big difference compared to "normal coating", but both are coated.

TCrowe · Feb 19, 2006

Another potential problem of the non "C" lenses that I have read about. The older lens diapragm may cause a problem with the pro s and sd as, it was related by the photographer, these lens diapragms are stiffer than the s and sd's causing stress on the lens mechanics and possible premature failure.

I have a 65mm non "C" and have had no probs in the year I have used it. I merely had to attach a spacer ring (friction fit) and voila. Works fine. (The spacer ring is required to stop potential light leaks on the SD.

RB67 "C" lenses and Regular Lenses?

Moderator

Privacy & Transparency

Privacy & Transparency