Re: 8x20 lens

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From: John Richardson (jrplatinum@earthlink.net)
Date: 05/24/00-09:12:08 AM Z


I have a nice 14" Dagor for sale. It is in an ACME #4 shutter. $795.00

John Richardson

Sandy King wrote:

> For a variety of reasons the favorite lenses for the large panoramic
> formats are wide angles. For this use Dagors are really hard to beat
> on cameras 7x17, 8x20 and 12x20 format, and even the very oldest ones
> provide more than enough sharpness, assuming of course one intends to
> make contact prints.
>
> The 12" Dagor was made in large quantities and is a great wide-angle
> lens for any of these formats. It will *just* cover 12X20 stopped
> down to f/45 or more, covers 8x20 with some movements at the same
> aperture, and offers considerable movements on 7x17. It is commonly
> available in good condition in working shutter for less than $500
> (except for the gold-ring and gold-dot Dagors, which are much more
> expensive but offer little if any improvement in performance).
>
> The 14" Dagor is less common and more expensive ($700-1400) but
> allows moderate movement on 12X20 and more than one is likely to need
> on 8x20 and 7x17. The 16" Dagor is very pricey ($1000-1400) and still
> rather wide angle on 12X20 and 8x20 but gives almost unlimited
> movement.
>
> Other good lenses of less than 400mm for all of these formats are the
> 360mm Schneider Symmar (convertible version, that allows use of the
> single element at 610mm), a very good buy in the $400-600 range and
> the 360mm Fujinon-W ($800-1100).
>
> Many banquet format workers are using the 305mm and 355mm G-Clarons.
> The former covers 7X17 with some movements and 8x20 just barely,
> while the 355mm will cover 12x20 with just a bit of movement. These
> are certainly good lenses but provide slightly less coverage than
> Dagors of equivalent focal length.
>
> There are lots of other good lenses out there for these formats, as
> others have mentioned. However, if wide angle is what you are looking
> for, the following provide the maximum for the format from lenses
> that are rather readily available on the market.
>
> 7x17 210mm f/8 Super Angulon or 200mm Grandagon, both give image
> circle of slightly over 500mm, which allows quite a bit of movement
> on 7x17. The 210mm f/18 Protar will also cover, in a small package,
> and the 183 f/18 Protar covers with a circle of illumination but
> considerable loss of definition at the corners.
>
> 8x20 270mm f/6.8 Dagor (and perhaps the 240mm Wide Angle Dagor).
> The 210mm f/8 Super Angulon will cover with slight vignetting.
>
> 12X20 300mm f/6.8 Dagor
>
> Sandy King
>
> >>I am contemplating a purchase of an 8 X 20 back for my Wisner. Can
> >>someone give suggestions on lens for an 8 X 20?
> >>
> >>Thanks
> >>David
> >
> >I use a 305 g claron (just barely covers at infinity) , a 15/24/36
> >turner reich, which I also use for my #16 cirkut camera, a 19"
> >artar,and a 24" nikkor apo.
> > Jamie in Madison, WI


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