Archived posting to the Leica Users Group, 1998/12/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Nope - flare is caused by internal reflections in the lens and by adding a filter - any kind - you add two more air to glass surfaces and thus more flare. The cure is obvious - just apply good multicoating to all surfaces - but it is easier said than done. Raimo photos at http://personal.inet.fi/private/raimo.korhonen nyt myös Kameralehden juttuja suomeksi - ---------- > From: Jim Brick <jimbrick@photoaccess.com> > To: leica-users@mejac.palo-alto.ca.us > Subject: [Leica] RE: Re: KINOPTIC lenses > Date: 08. joulukuuta 1998 22:48 > > I suspect that a multicoated B+W UV filter would indeed improve upon the > Kinoptic lens flare susceptibility. It would be worth a try. > > This flare problem is not a fable. Many years ago, John Knight (Leicaphile, > upstate NY) was about to buy a Kinoptic and I warned him about the flare > problem. He tested the lens, didn't buy it, and thanked me over and over > for the heads-up. > > Jim > > > At 02:44 PM 12/8/98 -0500, you wrote: > >Jim- This is a serious question: If the lenses have shitty coating, but are > >otherwise incredible, what would happen if one put a well-coated UV filter - > >B&H or Heliopan - or Leica - on them? Wouldn't that solve the problem? Or am > >I missing something really obvious here? > > > >B. D. > > > >> -----Original Message----- > >> From: owner-leica-users@mejac.palo-alto.ca.us > >> [mailto:owner-leica-users@mejac.palo-alto.ca.us]On Behalf Of Jim Brick > >> Sent: Tuesday, December 08, 1998 2:18 PM > >> To: leica-users@mejac.palo-alto.ca.us > >> Subject: [Leica] Re: KINOPTIC lenses > >> > >> > >> For my Alpa system, I had the 100mm APO Kinoptic and the 150mm APO > >> Kinoptic. These lenses were so sharp, they ate resolution charts > >> for lunch. > >> BUT their lens coating was a real dog. High contrast subjects, any stray > >> light (just a reflection off of a tree leaf) would cause a > >> visible level of > >> flare. But were they ever sharp! You just had to be very careful > >> where you > >> used them. Basically, in the shade. > >> > >> Jim > >> > >> At 07:30 PM 12/8/98 +0100, you wrote: > >> >In last Popular Photography (12/98) page 166 > >> > > >> >KINOPTIC lenses in T-mounts: > >> > > >> >snip.... > >> >Now , however, Kinoptik is supplying its line of nine 35mm lenses in > >> T-mounts. > >> >Result? These French made lenses can now be used on almost all > >> manual focus > >> >35mms > >> >(rangefinders included), plus a handful of AF SLRs, too. > >> >Half of the Kinoptik lenses, which range from 50mm f/2 to 1000mm f/8 are > >> >Apochromats; > >> >four are true macros focusing to 1:1; and all are covered by lifetime > >> >warranties. > >> >(Heiz Service, 34-11 62nd St., NY 11377.) > >> > > >> >Did one of the LUGers tried those lenses ? > >> > > >> >Lucien > >> > >> > >