Lenses for 67

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Hi all,

I would like to know when were introduced lenses for 67. I am mostly curious about those lenses which have new (computer) design. I now know only about 55/4, 200/4 and new 55-100/4.5 & 100/4 macro. Can anybody know relase date of each lense ?

I appreciate any information.

Thanks

Pavel M

p.s. Does anybody here have 100/4 macro and could comment its quality?

-- Pavel Medek (talema@top.cz), January 31, 1999

Answers

Pavel, I know that Pentax began using computers as a design aid no later than 1984. Be aware that designs that were done prior to using computers can be just as good as the ones using computers. The latest 200mm was designed in 1985; the latest 55mm (8 element) was designed in 1985 also. Most of the original lenses that were designed when the P67 was introduced (30 years ago)have been redesigned. The ones that have not been changed, probably has to do with their performance being so good that redesign was not necessary. The 75mm is an example of this. The date of the design is less important than the design expertise. SR

-- Steve Rasmussen (srasmuss@flash.net), February 01, 1999.

Yes, the changes are slower in the MF world but the optical designs are no less progressive. Pentax does use ED glass but is very secretive about its designs. You must judge their lenses by their performance and not by advertisements or promotion. The 135 macro is ok for a normal lens and is quite sharp. The 100 macro is overpriced for use as a normal lens unless you do much macro work. I've had the 105 Takumar for ten years and like it for both macro and infinity work. SR

-- Steve Rasmussen (srasmuss@flash.net), February 03, 1999.

Steve, I am quite new in MF and most of my knowledge is based on experiences with 35mm format. In small format (35mm) lenses are redesigned in much shorter period, especially last few years. It is mostly because producers want to use more and more ED and/or aspherical elements to improve lens quality. It is interesting how slower time goes in medium format in comparison with 35mm. I just order 67II system with two lenses 55 and 200mm so I wanted to get some details about it. I just have not decided about standard lens. I am thinking about new 100 macro or 135 macro. Can somebody help me ?

-- Pavel Medek (talema@top.cz), February 03, 1999.

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