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Re: [OM] 35mm f2 or 35mm f2.8?

Subject: Re: [OM] 35mm f2 or 35mm f2.8?
From: Winsor Crosby <wincros@xxxxxxx>
Date: Sun, 1 Mar 1998 20:57:03 -0800
>Giles wrote:
>>
>> Yes - The 35mm f2 will give you a brighter viewfinder image - which
>> for me equates with easier focusing.  It also is a floating element
>> design intended to correct for distortion, especially in close
>> focusing.  Here is an extract from the OM lens .pdf brochure
>>
>> "The smaller the focal length and the greater the angle of view the
>> more distortion can appear in the photograph. To prevent this Olympus
>> has produced a full set of cor-rected floating element lenses. The
>> 18mm É3,5, 21mm É2.0, 24mm É2.0, 28mm É2.0, and 35mm É2.0 lenses are
>> all floating element designs with excellent image quality from their
>> closest to furthest point of focus."
>>
>> Giles
>>

Lars wrote:
>There appear to be variants on that 35mm/f2.0. The old lens handbooks
>do not list that one as a floating element type. I have one such lens
>which, as far as I have been able to determine, does not have a floating
>element. I checked with "Unofficial Olympus OM Zuiko Lens Page" at
>http://www.datasync.com/~farrar/zuiko.html , which provides a very good
>overview of the Zuiko family, but it lists no floating element 35mm lens.
>
>Olympus may have updated the design at some point. Or the lens pdf file
>might contain a typo.
>
>Anyway, it is a good lens, but a little heavy compared to the 35mm/f:2.8.
>
>Regards
>
>Lars


According to my old OM System Brochure which is undated, but which shows
the OM4T, but not the black version, the following lenses had rear floating
elements for close distance correction:
21/2, 21/3.5, 24/2, 28/2, 50/2&3.5macros, 85/2, 100/2. That's it. None for
the 35/2.


Winsor Crosby
Long Beach, California
mailto:wincros@xxxxxxxxxxx


"Any sufficiently advanced techology is  indistinguishable from magic."
                                 -Arthur C. Clarke
"Doo Doo Doo Da Da Da" -- Sting



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