Re: [APML] Piggyback 4x5

["Joseph O'Neil" <joneil@multiboard.com>]

>Has anyone piggybacked a 4x5 camera?  I have a friend with a couple of
>different 4x5 bodies and I would like to try some Milky Way shots with this
>camera this summer.

-snip-

         If you do, cut a price of carboard and fold it to go around the 
bellows, covering them almost completley.  There's a phenomina known as 
"bellows flutter" wich can transmit vibration to your negative and give you 
a fuzzy image.   I have an old Popular Mechanics photogrpahy handbook fform 
the 1940's that describes this problem, mostly it was noticed on aircraft 
when people shot pictures using cameras like Speed Graphics from open 
cockpits of aircraft - the wind brushing against the bellows.
         Same thing can happen during long exposures if you have any wind 
come up.

         Secondly, the film can shift in your film holder during long 
exposures.  A low tech solution is to get that tape 3M makes - it's in a 
blue label,a nd it is removeable tape.  Imagine Post-It notes, how they are 
semi-sticky, made into tape, andyou have exactly this stuff.  You will want 
to use a couple small pieces around the far edge, but you cannot use too 
much as it will interfere with the dark slide moving in and out easily.

         If you think you are going to do a lot of 4x5 shooting, get 
yoruself either new a Toyo film holder, or used, a Lindhof (sp?) film 
holder.  The Lindhof, no longer made, but appears on ebay, is a spring back 
film holder and will keep your film snug ( a bit of a bitch to load however 
comapred to your regular film holders - take your time),a nd I am told Toyo 
makes one now too.  Also, for what is is worth, the Lindhof film holders 
will hodl glass plates.   Last time I looked a few years ago, you could 
still get I think Tech Pana nd Tamx 100 B&W films in glass pltes, but nto 
cheap,a nd always a special order, with minimums.

joe




http://www.oneilphoto.on.ca
http://www.multiboard.com/~joneil
Una salus victis, nullam sperare salutem


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