Re: Horseman SW 612 & also 47mmXL

[Ellis Vener <evphoto@xxxxxxxxxx>]

That would be my guess.

Ellis

DON WHIPPLE wrote:

> Ellis, yes.  I first mounted a 67mm Polarizing filter with a thin rim
> and over that the Heliopan 67 to 86mm Center filter.  Is the polarizer
> filter cutting some image off?
> Don
> =====================================================
>
> >>> Ellis Vener <evphoto@xxxxxxxxxx> 06/23 10:48 AM >>>
> Don:
> Wow! Something was definitely wrong with your camera. I have used the 47XL
> on my 4x5 Arca Swiss F-line camera and had full coverage (plus shift) on
> 4x5 transparency. Did you use use a filter of some sort (either with or
> without the Center filter) on the lens?
>
> Ellis Vener
>
> DON WHIPPLE wrote:
>
> > I have a similar problem with the 4x5 Cambo Wide 47XL.
> > It is advertized by Calumet as a 4x5 with 15mm shifts.
> > I use a Horseman 612 back on it and a Helipan center filter.
> > Even shooting at f/32 the lens will not cover the 612 format
> > without shifting.  It barely covers 6x9.
> >
> > Don Whipple, AIA  <dwhipple@xxxxxxxxx>
> > ==============================================
> >
> > >>> Joel Seaman <jseaman@xxxxxxxxxxx> 06/23 5:00 AM >>>
> > Has anyone had experience with a Horseman SW612?  I have one with a
> > 45MM Apo-Grandagon lens that produces images with substantial light fall
> > off.
> > These images occur despite the use of the ridiculously priced and
> > overrated Rodenstock center filter!!!  The light fall off is not
> > consistently strong and seems to vary, perhaps in relatiion to the angle
> > of the camera relative to the sun. Any
> > experiences would be appreciated.  The Rodenstock filter has the added
> > benefit of producing "outstanding" examples of flare if the rays of the
> > sun even feign towards the camera .
> >
> > Joel