pat_kearns1
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Posts posted by pat_kearns1
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Bill, I have experienced strange fogging on some exposures while
using Cokin filters and holders using a medium format camera last
summer at the Grand Canyon. It didn't appear on the entire roll but
only two frames. I believe it was due to relection on the reverse
side of the filter. There is a gap between the filter and the lens
and the sunlight was reflecting through the gap. If there are no
light leaks with your bellows and/or film holders I would try an
exposure under the same conditions with the filter and one without to
see if the back reflection is the cause. Good luck.
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Charles, I have seen a commercial photographer using a Minolta meter
that has a an attachment similar to a wand and about the size of a
pencil that is inserted like a film holder. The meter has a digital
display and measures in tenth's of an f stop as well. The wand
measures a small degree like a spot meter. I don't recall the
particular model number but it worked like a charm. His polaroid
test shots with it made me envious.
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Try the following procedures and see if you are able to get a print.
First, in the dark without a negative turn on the enlarger, open &
close your lens. There should be a definite lessening of the light
as you stop down the lens and brightening as you open the lens. If
the light stays the same the blades are stuck. Second, read the data
sheet for the paper to see if there are recommended dichro filter
settings and set them. Third, select a negative with good contrast
features to make an 8 x 10 test print. That is, good black tones,
varying gray tones, and some clear tones, if your negative is too
thin or underexposed your print will be black. Focus your negative,
(unless you are contact printing an 8 x 10) then stop the lens all
the way down and back it up one stop. Turn the enlarger off, place a
sheet of paper in the easel and cover all but 1/2 inch with
cardboard. Set your timer for a 2 second exposure. Make the
exposure, move the cardboard 1/2 inch make another 2 second exposure,
continue to move the cardboard 1/2 inch and give a 2 second exposure
until the entire sheet has been exposed. Fourth, all chemicals
should be at 68 degrees. Develop in Dektol 1:2 dilution for 90
seconds, Stop Bath 30 seconds and Fixer for 4 minutes. The
resulting print should show twenty 1/2 inch bands of exposure from 2
- 40 seconds. The lightest band will be 2 seconds and the darkest
will be 40 seconds. Somewhere in the scale of the print should be a
time that will give a good base time for your exposure. Once you get
the hang of it test strips can be cut to 1 inch widths so you don't
waste an entire sheet of paper as a test. If the print is still
totally black after this test, stop the lens all the way down and try
again. If it is still black after stopping the lens all the way down
replace the enlarger bulb with a lower wattage bulb. Sorry if I was
long winded but this is what I teach students in the continuing
education classes at one of the local universities. Check your local
university for non-credit darkroom classes. Happy
printing.
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I rate Tmax 400 at 250 & Tmax 100 at 50 and process with Tmax RS 1:9
dilution for 11 minutes in a Besslar rotary tube and motor with
excellent results. Tmax film will exhaust fixer so I use Kodak Rapid
Fix for 7 minutes and it clears up the pinkish cast. Good luck &
good shooting.
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Bill,
If you are a photographer of the desert then you need to take a trip
to Tombstone, AZ. Camilis S. Fly had a studio in Tombstone near the
OK Coral. It has been restored with many of his famous photographs
in the surrounding area on exhibit. Fly accompanied the US Calvary
to photograph the capture of Geronimo, his son Chappo Geronimo and
the warriors he led in battle against the settlers of the West.
Gernimo & his warriors were then imprisoned at Ft. Pickens on Santa
Rosa Island near Pensacola Fl. Many of the indians died there due to
the harsh climate and were moved to Mt. Vernon, AL where it was a
little milder. Geronimo and the surviving indians were later
returned to reservations in the West. Chappo Geronimo died at Mr.
Vernon and is now buried in a National Military Cemetary in Mobile,
AL. Fly's historical photographs of the surrender of Geronimo are
probably his most famous.
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Paul,
Before you give up on the Tmax try the following: Tmax RS Dilution
1:9, temperature at 75 degrees, development time of 11 minutes with
constant agitation. You didn't state your dilution ratio but it
sounds like you have been underdeveloping with your time,
temperature, & possible dilution.
New beginner's mistake - painful / carrying Toyo CX
in Large Format
Posted
Edward, beware of mean tripods. On a cold November morning in
Monument Valley I was opening my tripod and felt the pressure on my
little finger. I close the leg to remove my finger and saw the
fleshy pad fall to the dirt between my feet. The temperature was
about 25 degrees and the numbness of my hands prevented any pain.
Now I always pack bandaids and antibiotic cream in my camera bag. I
honestly say that my photography is a combination of blood, sweat &
tears.