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[OM] Re: Plastic lenses; was: Sigma lenses

Subject: [OM] Re: Plastic lenses; was: Sigma lenses
From: fred42@xxxxxxxxx
Date: Tue, 02 Mar 2004 09:16:29 -0500
Hi there Roger,

The lens you mention is not an Olympus design as far as I know. It is made by 
Cosina for Olympus. It was also made for Nikon F mount, one of my students has 
on attached to her Nikon FM10 as a Nikkor branded lens. The Olympus version was 
introduced at the same time as the OM2000 which you probably know already is 
barely an OM. Both it and the FM10 (and FE10 too in fact) were made by Cosina 
and share the same chassis. Most of the current Voigtlander bodies made by 
Cosina also share a lot of trim/chassis parts from external views. Cosina have 
done a very good job of taking a no doubt reliable set of deigns and made a lot 
of packages around that frame. RF and SLR bodies and many different mounts 
(Lecia thread, Contax, M42, Nikon, OM to name just a few). Hope this helps.

Dan S.

----- Original Message -----
From: "Roger D. Key" <rdk@xxxxxxxxxx>
Date: Tuesday, March 2, 2004 4:55 am
Subject: [OM] Plastic lenses; was: Sigma lenses

> 
> 
> I would think that, from the OM point of view, the most significant
> 'plastic' lens is the Zuiko 35-70/3.5-4.5. It feels a lot cheaper than
> Olympus' earlier designs, but in practice gives excellent 
> performance. It
> might not hold up to professional (ab)use, but in normal use it 
> should last
> a lifetime(?).
> 
> Roger Key
> 
> 
> 
> Moose wrote:
> 
> 
> Nevertheless, my point was about inexpensive plastic lenses in 
> general.I'm not advocating buying that particular one or arguing 
> whether it will
> be a good long term investment, or whether Canon was wise or not. 
> I was
> talking about perception vs. reality about the optical performance of
> this type of lens design in general. (I could argue that if a lens so
> obviously not suited for digital in theory can perform rather 
> well, one
> that is so designed should be even better, but choose not to.) The
> Sigmas that started this thread and are its subject are specifically
> designed for APS size and smaller digital sensors.
> 
> Moose
> 
> 
> 
> 
> 
> 
> 
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