Archived posting to the Leica Users Group, 2002/01/11

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Subject: Re: [Leica] New diffraction element lens completely off topic
From: Lucien <director@ubi.edu>
Date: Fri, 11 Jan 2002 17:46:17 +0100
References: <02ee01c19a53$f0111920$bd3afea9@oemcomputer>

Don Dory wrote:

> I had the opportunity to shoot with the new Canon 400mm IS diffraction
> element lens today.  Wow.  4.3 pounds for a 400mm F4.0 lens.  To find out
> what it could do I shot a few frames at 3.5 meters which is the close
> focusing point.  The exposure was at F4.0 at 1/8 sec.  The stabilizer at
> position 2 which is for panning, in other words not optimized for a
> portrait.  I think you will find it's quality for a completely hand held
> shot at 1/8 pretty amazing considering there was a challenge for a 50mm at
> 1/4 sec.
>
> The URL is
> http://www.photo.net/photodb/photo?photo_id=514596
>
> No, its not a Leica, but it is at the limit of optical performance.

Don,

According to Chasseur d'Images' test, is not such a good lens.

Lucien

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In reply to: Message from "Don Dory" <dorysrus@mindspring.com> ([Leica] New diffraction element lens completely off topic)