TXP + D-76 times

Kevin wrote:

It turns out the film was fine. As I suspected, I was doing something
stupid. It's been a while since I've done serious photography and I
have forgotten some basic things. In this case, my test shots of the
gray card for determining film speed and development time was done
with the lens focus way beyond infinity, and I had forgotten that you
have to compensate the exposure when you do. Anyway, I redid the tests
with the focus set at about infinity. Now everything works like you'd
expect. The reason switching to tmax seemed to solve the problem was
that as the same time I also corrected my focusing issue. I certainly
feel stupid, but at least everything makes sense now. Now for Tri-X my
speed is about ISO 250 and development time in D-76 is about 7
minutes. I think that sounds more like it.

Not that I remember much of this discussion (something
about bad tri-x which I didn't think was the film...)

If you are closer than 8x the focal length you need to
calculate an exposure correction. Otherwise not.

OTOH if you're metering with an SLR (through the lens
metering) the light fall off from close focusing is
already compensated for.

Cheers,
Kevin

On Fri, 22 Oct 2004 13:50:57 GMT, Kevin
wrote:

According to the data on the package of D76, the development time for
320Tri-x (TXP) using stock solution at 68 degrees is 9 minutes. I've
seen 6 min. published elsewhere. However, even with 9 mins. my
negatives are about 2 stops under exposed. I'm real curious what kind
of times others are using with this combination.

BTW, I'm certain that my shutter and meter and not the problem. I've
been shooting Velvia with no problem. If I have a camera problem I'd
know quickly.

Thanks,
Kevin

"Kevin" wrote in message
...
It turns out the film was fine. As I suspected, I was doing something
stupid. It's been a while since I've done serious photography and I
have forgotten some basic things. In this case, my test shots of the
gray card for determining film speed and development time was done
with the lens focus way beyond infinity, and I had forgotten that you
have to compensate the exposure when you do. Anyway, I redid the tests
with the focus set at about infinity. Now everything works like you'd
expect. The reason switching to tmax seemed to solve the problem was
that as the same time I also corrected my focusing issue. I certainly
feel stupid, but at least everything makes sense now. Now for Tri-X my
speed is about ISO 250 and development time in D-76 is about 7
minutes. I think that sounds more like it.

Cheers,
Kevin

That is the exact EI and time I use when employing D76 @ 1:0 and 20 deg. C.
for "Normal" (N) exposure and development of TXP. A great film and
developer combi. IMO.

Truly, dr bob.

"Kevin" wrote in message
...
It turns out the film was fine. As I suspected, I was doing something
stupid. It's been a while since I've done serious photography and I
have forgotten some basic things. In this case, my test shots of the
gray card for determining film speed and development time was done
with the lens focus way beyond infinity, and I had forgotten that you
have to compensate the exposure when you do. Anyway, I redid the tests
with the focus set at about infinity. Now everything works like you'd
expect. The reason switching to tmax seemed to solve the problem was
that as the same time I also corrected my focusing issue. I certainly
feel stupid, but at least everything makes sense now. Now for Tri-X my
speed is about ISO 250 and development time in D-76 is about 7
minutes. I think that sounds more like it.

Cheers,
Kevin

That is the exact EI and time I use when employing D76 @ 1:0 and 20 deg. C.
for "Normal" (N) exposure and development of TXP. A great film and
developer combi. IMO.

Truly, dr bob.

"Kevin" wrote in message
...
It turns out the film was fine. As I suspected, I was doing something
stupid. It's been a while since I've done serious photography and I
have forgotten some basic things. In this case, my test shots of the
gray card for determining film speed and development time was done
with the lens focus way beyond infinity, and I had forgotten that you
have to compensate the exposure when you do. Anyway, I redid the tests
with the focus set at about infinity. Now everything works like you'd
expect. The reason switching to tmax seemed to solve the problem was
that as the same time I also corrected my focusing issue. I certainly
feel stupid, but at least everything makes sense now. Now for Tri-X my
speed is about ISO 250 and development time in D-76 is about 7
minutes. I think that sounds more like it.

Cheers,
Kevin

That is the exact EI and time I use when employing D76 @ 1:0 and 20 deg. C.
for "Normal" (N) exposure and development of TXP. A great film and
developer combi. IMO.

Truly, dr bob.