[Leica] 15 Zeiss

[henningw at archiphoto.com (Henning Wulff)]

Jerry, in my profession accurate estimation of distances is very 
important. I'm an architect and certified to act as a building 
inspector for complex buildings in this area, and if you can't 
estimate distances and dimensions in my profession, you can't do your 
job well. I can tell when an exit is not wide enough by an inch, 
almost every time. Contractors, engineers and everyone else usually 
is also able to estimate distances accurately.

Strange how everyone on a job, including me, still carry measuring tapes.

We also have to be able to read and comprehend what other people write.

As I noted before, it depends on what's needed.

I use my SWC 98% of the time handheld, and it's great for that. 
However, the GG back still comes in useful at times.

When I use a Superwide lens on a 35mm camera, most of the time dof 
takes care of things, and estimation is just fine. But no lens, and I 
mean no lens has very good distance scales. If I want to set 7'10", 
and I can estimate it accurately, I still can't set it accurately if 
the distance scale only has markings at 5' and 10'. The estimation 
error and setting errors add up, and the best focus cannot be achievd 
by estimation. Sometimes, and I stress that, sometimes it's important.

Most of the time estimation etc is just fine. It's just that if I pay 
something like the price of the 15 Zeiss I'd like to have the option.



>Frank,
>
>I have NEVER felt the need to use the GG back for my SWC.. In fact I 
>just gave it away
>last year.
>
>I don't use hyperfocal distance much.  I can estimate distance very 
>well due to my BSA
>training as well as time in the US Army Corps of Engineers.
>
>Jerry
>
>
>Frank Filippone wrote:
>>  While all of this is of course, correct, there is a few sets of
>>  pre-conditioning going on......
>>
>>  To us a SWC with  the GG back this is what you need to do......
>>
>>  1) Take a tripod with you.
>>  2) Carry the GG back
>>  3) Carry some form of focusing magnifier  ( could be another lens, a 
>> pair of
>>  magnifying glasses or at least something
>>  4) Carry a dark cloth or some form of light blocker ( otherwise known as 
>> a
>>  right angle magnifier) to put on the GG back for image composition
>>
>>  Proceedure....
>>  a) Set up tripod
>>  b) Set up Camera on tripod
>>  c) Take off film back and put it someplace ( not underfoot!)
>>  d) Put on GG back.
>>  e) Open lens on B
>>  f) Compose, focus
>>  g) close lens, set shutter timing
>>  h) remove GG back
>>  i) Put on Film back
>>  j) Expose. + Crank the film on.
>>
>>  What does Marks solution of zone focusing take?
>>  a) point camera
>>  b) estimate distance or Hyperfocal set the lens to begin with. c) 
>>set lens focus
>>  d) shoot
>>  e)  Wind film on.
>>
>>  The difference is the same as using a view camera ( which is what t he 
>> SWC
>>  is when you use a GG) vs a 35mm camera.
>>
>>  While Henning is right about accurate focus, it all depends on what you
>>  want, and what your client wants the images for and what you are allowed 
>> to
>>  do in the taking venue.
>>
>>  I can use a SWC off had in a Museum that does not allow tripods.  But I 
>> can
>>  not use that same camera in that same museum if I want to GG focus.
>>
>>  Been there, been asked to stop, done that
>>
>>  It is an apples and oranges comparison.....  Both work, but for different
>>  applications.  GG focus or Guestimate focus.
>>
>>
>>
>>  Frank Filippone
>>  red735i@earthlink.net
>>
>>  Henning Says......
>>
>>
>>
>
>
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    *            Henning J. Wulff
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