Re: Polyester and Gelatin Filters

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 17 Apr 98 at 11:19, Clive Warren wrote:

> Current plans are to give Willem-Jan my life savings and run around with a
> Cokin P series strapped to the front of my Koni-Omega.  Have also been
> toying with the idea of converting a spare back for my Bronica S2A using a
> polyester filter....  The potential problems include scratches from the
> dark slide and trying to transport the back when off the camera....  who
> said anything worthwhile is easy?

I am working on something similar for my Mamiya RB....one solution is 
sacrificing one rotating back mechanism to mount a filter on.
This also reminds me of the sad problem I have with my Kowa 19mm 
circular fisheye....the T(ime) setting doesn't work, so Konica & #87 
might be a problem with a longest shutter time of 1s. Yet this lens 
is too rare & unique to even try a repair....it's the only circular 
fisheye for medium format ever made (apart from Zeiss/Nikon 
prototypes). I have bought a Kowa 85mm in bad condition just to see 
whether I could attempt a repair on the shutter myself....don't think 
I will trust any shop to handle this lens.
Oh well, I'll just have to trust my tripod and use multiple 
exposure....8-))

> Anyone have any long term test feedback on use of different types of tape
> to hold the behind the film rails filters in place?

Mine is held with cheap office tape for more than a year now....:-))
Not double-sided btw, just simple single-sided tape, 1cm wide and 5mm 
long.
Only excessive heat will cause problems I guess, but that is not 
something HIE will see often....:-)) 


- -- 
Bye,

Willem-Jan Markerink


      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]
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