I found this "in another forum."
"tool links
- a collection of links to programs, calculators, simulators, tables, formula's, and
applets related to photography and optics

Now I've done it!
I have the week off, and there was a photo I've wanted to take for a
while now, so this morning when I thought the sun was just right, I set
up, donned the blackout curtain, got out my magnifier and negatives and

There is a discussion of the lack of good traditional black and white info in
US magazines at
http://www.apug.org/forums/showthread.php?t=8266
Do people agree?

Hi there, I'm considering purchacing a technica camera
(probably a IV). I'm moving up from a crown graphic camera
which I really like, but am now finding that I really need
back movements. I'm aware that the technica does have back

Is the Saunders 4x5 VL the same as the Zone VI or much like it? Will the
Saunders 45 cover evenly? I understand big enlargers sometimes have dark
corners.

Thank you for your valuable input in my post "What densities at which
zones?".
As English is not my native language, some of the misunderstandings occured.
So, let me try to explain the whole problem.

Question: Rodenstock Depht of field calculator
Last week i buy the Rodenstock Depht of field calculator.
I not understand as it's estimated the angle of inclination (alfa) of the
camera's monorail against the optical axis.

Question: Rodenstock Depht of field calculator
Last week i buy the Rodenstock Depht of field calculator.
I not understand as it's estimated the angle of inclination (alfa) of the
camera's monorail against the optical axis.

I've started contact printing 8x10 negs, and I'm getting either fall-off, or
density buildup on the negs, because my prints are coming out very light around
the edges.  The negs don't look heavy on the edges, however.  Has anyone else
experienced/solved this problem?  

I see Bruce has expanded his website and added some great color images too!
http://www.brucemacneil.com/
Have a look!

I have a Baldameter marked in feet - a range finder - marked up to 40
feet then infin.
It seems to fit on the hot shoe.
All the film cam i have seen would not need such an item.

Okay, again, what's the formula for calculating maximum aperture?
Specifically, do I have to do a serial calculation - diameter of entrance
pupil(lens) then consider the smallest aperture in the system, and exit
aperture?

Hello, I'm in need of picture of Linhof-Sinar lensboard adapter. I have
Sinar with few lenses and I have bought small Tachihara which use Linhof
lensboard. Now I have moved my lenses to smaller boards and I would like
to made adapter based on one of my Sinar lensboards.

Many thanks for all of the comments about Mamiya 7 v 4X5 for backpacking.
They are much appreciated and informative.
To answer some of the questions:
From Peter De Smidt:

Wisner writes on their home page that requests for super-large (16") cameras
has increased. There's a bit of news to the digital-fanatics who claim The
End, n'est pas?
BTW - Why Wisner? Besides being stunningly pretty, very well crafted, and