Re: WA G Claron

[James Young <jamiehy@xxxxxxxxxxxxxxxx>]

>In <URL:news:lokaal.panorama> on Wed 22 Mar, James Young wrote:
>> >Related to the thread 'Lenses for 8x20' I have a Schneider WA G Claron
>> >11/270 of a graphic camera. It will probably have a wider angle than the
>> >normal G Claron but how much? Is it possible to get a shutter for that
>> >lens?
>> >
>> >Ernst
>> >--
>> >Ernst Dinkla  Serigrafie,Zeefdruk            The point will never be metric
>>
>> I have shot with the 270 WA g CLaron and the 305 regular G CLaron on 8x20
>>  The 305 reg. lense will cover
>> The WA lense has an 18" circle and doesn't come near covering at infinity.
>> There is a 1-2" blur at the edges too. It is most definately a process
>> lense design. Works great as a wide lense for 1: 1 but is not a WA lesne at
>> infinity. Jamie
>
>Is it only the wide angle aspect (by vignetting) that is lost or is the
>quality lost as well? I have several other enlarging  lenses (and the 24
>x 33 cm. cold light enlarger they were used with). Will the normal
>enlarger lenses like the Apo Nikkor 9/360 or the Rodenstock Apo Ronar
>9/240 yield better results when used at infinity than the wide angle
>does?
>
>Ernst
>--
>Ernst Dinkla  Serigrafie,Zeefdruk            The point will never be metric

One has to check this with different lense types, but my experience is that
withthe Artars and regular g clarons, and probobly the ronars, one can get
closer to the vignetting before the loss of sharpness occurs. The WA
gclaron has a pretty obvious loss of sharpness way before the vignette
occurs. I'm guessing it doesn't happen at 1:1 Jamie