[pure-silver] Re: Large Format Tilt

No I do not need a Palm with software etc, and in practice I try to eye
ball the amount of tilt, also inpractice I usually need no or just a bit
of tilt (per advice also from a experienced LF photgrapher).

OTOH in the past I played around with some extreme tilt, and it took a
lot of time to get that one straight, so I tried the Palm plus software
and I was surprised how quick I reached a good tilt, so I guess there
are situations were it can be very usefull and quick..

Best,

Cor

> -----Original Message-----
> From: pure-silver-bounce@xxxxxxxxxxxxx [mailto:pure-silver-
> bounce@xxxxxxxxxxxxx] On Behalf Of Frank Filippone
> Sent: donderdag 29 november 2007 15:45
> To: pure-silver@xxxxxxxxxxxxx
> Subject: [pure-silver] Re: Large Format Tilt
> 
> Why?  Why not just look at the GG and decide for yourself if it is in
> focus
> or not?
> 
> I realize all these tools are helpful to some % of the market, and
> interesting math and programming programs in their own right....  But
do
> you
> really NEED them?  DO you NEED your Palm if you are in a beautiful
place,
> alone, and peaceful?
> 
> Get out and smell the roses.....That's my motto....
> 
> Frank Filippone
> red735i@xxxxxxxxxxxxx
> 
> 
> 
> I have been playing with Bob Wheeler's VadeMecum
> (http://www.bobwheeler.com/photo/Software/software.html), which is a
set
> of usefull programs for the (LF) photographer which runs oa on a Palm
> device.
> 
> Anyway the program I like the most is called Tiltb, this program helps
> you to find the amount of tilt (in degrees or top movement) needed to
> get something in front of (A), and something at the back (B) higher up
> in focus.It is based (not novel) on measuring, by back focusing the
> difference between A and B on the rail, and the difference between A
and
> B on the groundglass. Both distances and the distance from the camera
to
> the tilted plane are fed into the TiltB program, which gives you the
> degree tilt or the amount of topmovement of the front standard.
> 
> Since I use mainly an old Linhof Technika III in the field, I cannot
use
> back focus (it hasn't), but I assume I can use front focus for that,
> right?
> 
> A more difficult part is how to measure the amount of top movement. A
> Tech III has no front tilt, only back tilt. A way around this is to do
> back tilt, and drop the bed (making front and back parralel again, and
a
> front raise. So now the back tilt is turned into a front tilt.
> 
> I now measure the amount of top movement by measuring from the back
> panel (actually box), somehow I have the feeling that this is not
> entirely correct.
> 
> OTOH I did some testing of this procedure in my living room, and the
> resulting tilted plane nicely brought the desired subjects in focus,
> have to print the negatives yet though,
> 
> Best,
> 
> Cor
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