"Cheesehead" wrote in message
...
On Oct 18, 12:01 pm, "Lawrence Akutagawa"
wrote:
"Cheesehead" wrote in message

...

I'll add a link to a result later, but right now I think a description
will suffice.
I went out Sat. a.m. to do some early a.m. shooting.
After I developed the negs, I saw some right-angle lines.
The center of each of two negs was identically darker than the outside
portion.
*By "center" I mean roughly the middle 1/3, horizontally, and
vertically from the top down about 2/3 of the height.
. . . . x x x x . . . .
. . . . x x x x . . . .
. . . . x x x x . . . .
. . . . . . . . . . . . .

I used two different lenses, each on its own respective lens board
(135 Xenotar and 210 Caltar)
I've used the camera before and not had this problem. It is a Speed
Graphic, circa 1950.

The obvious question is to find the cultprit.
My first though was the seal around the film holder
Next thought is the back edge of the bellows.
Any other ideas?

In a darkened room, place a very small flashlight (turned on) in your
camera
on the tripod with the bellows extended, the lens closed, and the film
holder inserted.

Good idea. And easier as it gets darker earlier each day. :-)

******

Soooo...any findings yet?