Most interesting in the hyperlinked chart is the statement that none of the
F/2.0 or faster lenses (except the 180/2 & 250/2) allows a maximum aperture of
more than f/2.8. So you're 50/1.2 becomes a 100/2.8.
So much for using the Zuiko primes as fast telephotos. And most of the
wide-angle lenses lose 1 or 2 stops. Why? I guess that by only using the
center 1/2 of the light cone, most lenses are hamstrung by not using parallel
light rays?
Skip
>
>Subject: [OM] Free OM-to-E-System adapter - Update
> From: Jim Terazawa <jimt@xxxxxxxxxxxxxxxxxx>
> Date: Tue, 20 Jan 2004 10:05:44 -0600
> To: "olympus@xxxxxxxxxx" <olympus@xxxxxxxxxx>
>
>For those who are interested, there is a listing of the compatible OM
>lens and recommended aperature ranges (based on the calculations made
>by Olympus spec) with the E-1 adapter. The list is located at:
>http://www.suisui.ne.jp/~t-oku/page1-OM-43ad.html
>
>>
- Almost all non-zoom OM lenses can be used with limited aperature
>> ranges. For example, F-stop range of 1.4 - 8 for Zuiko 50mm/f1.2.
>> - List of compatible lenses are being distributed at various camera
>> outlets. Majority of Zuiko lenses (48 of them) can be used except
>> 300mm/f4.5, 400mm/f6.3, 600mm/f6.5, 1000mm/f11,
>> 20mm/f2.0Macro, 38mm/f2.8Macro, 1.4XA-TC, 2XA-TC
>> - Only 28mm-48mm/f4 and 35mm-80mm/f2.8 zooms have the full usable
>> zoom range. All other zoom lense have limited zoom range.
>>
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