Thanks. I like these old names that tell me much how lens was constructed
(i.e. Planar).
Kryt
Am 2001-09-05, 23:36:36, wrote canislupus <[EMAIL PROTECTED]> Re: CZJ
80/1,8 with K mount?:
> I second that, the CZJ 80/1.8 is superb lens. It's similar design
> (maybe even same?) to Pentax K 85/1.8 (I have to dig out my 80/1.8 CZJ
> diagram), but in that case, the CZJ is original while Pentax is
> "copy". Anyway, it's a gaussian design, aka Planar or Biometar, unlike
> Pentax 85/1.9 or Jupiter 9, which are I think both Sonnar designs (the
> Pentax a bit different).
> Quality of CZJ Multicoating of course varied over years. Some
> is quite bad (the very early just few years after Zeiss invented
> multicoating), then some is quite good, as good as Tamron's BBAR I
> think. No SMC though. Lens hood is essential with such big and fast
> lens anyway.
> > As far as I know, there isn't such a thing that CZJ 2.8/135. CZJ
> > made a beautiful 3.5/135 (Sonnar) in this range. The 2.8/135 was
> > a Meyer design, and not bad at all for portraiture.
> AFAIK the 2.8/135 (6-element) was branded CZJ as well, but it's still
> the same old Meyer Gvrlitz design. It's VERY sharp stopped down, don't
> know about wide open performance. But the Sonnar 3.5/135 ("S") is said
> better. Better contrast, propably less flare too. Sonnar is prewar
design, still best for some lenses.
> Frantisek
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