New 400TX Rotary X's Too short

Processed my first couple of rolls of 400TX (320 iso) according to Kodak's
rotary instructions and the neg's are thinner than I would like them. By my eye
it will take about 10 - 15% more time. What's the general accord on
development timing of this new film.


Regards

Bob McCarthy

Indheatec wrote:

Processed my first couple of rolls of 400TX (320 iso) according to Kodak's
rotary instructions and the neg's are thinner than I would like them. By my eye
it will take about 10 - 15% more time. What's the general accord on
development timing of this new film.

There has been considerable speculation that due to an error in testing
or data recording/collection/editing, Kodak may have published times for
the wrong dilution of some developers with the new 400TX -- especially
HC-110, where it's widely believed the published times are closer to
correct for Dilution A than Dilution B.

My recommendation? Forget it's a "different" film, and treat it like
old TX. The difference between TX and 400TX in most developers is less
than variations you'd introduce without realizing it, like changes in
agitation, one-degree differences in temperature, etc.

And in the end, the times you get anywhere are just starting points;
I've had to cut my times for TMY by almost 50% from most published times
in order to get normal negatives. The only way to find the times that
will give *you* the negatives *you* want is to test for yourself.

--
I may be a scwewy wabbit, but I'm not going to Alcatwaz!
-- E. J. Fudd, 1954

Donald Qualls, aka The Silent Observer
Lathe Building Pages http://silent1.home.netcom.com/HomebuiltLathe.htm
Speedway 7x12 Lathe Pages http://silent1.home.netcom.com/my7x12.htm

Opinions expressed are my own -- take them for what they're worth
and don't expect them to be perfect.

"Donald Qualls" wrote in message
news:6VGLc.142206$JR4.20695@attbi_s54...
Indheatec wrote:

Processed my first couple of rolls of 400TX (320 iso)
according to Kodak's
rotary instructions and the neg's are thinner than I
would like them. By my eye
it will take about 10 - 15% more time. What's the
general accord on
development timing of this new film.

There has been considerable speculation that due to an
error in testing
or data recording/collection/editing, Kodak may have
published times for
the wrong dilution of some developers with the new
400TX -- especially
HC-110, where it's widely believed the published times are
closer to
correct for Dilution A than Dilution B.

My recommendation? Forget it's a "different" film, and
treat it like
old TX. The difference between TX and 400TX in most
developers is less
than variations you'd introduce without realizing it, like
changes in
agitation, one-degree differences in temperature, etc.

And in the end, the times you get anywhere are just
starting points;
I've had to cut my times for TMY by almost 50% from most
published times
in order to get normal negatives. The only way to find
the times that
will give *you* the negatives *you* want is to test for
yourself.

--
I may be a scwewy wabbit, but I'm not going to Alcatwaz!
-- E.
J. Fudd, 1954

Donald Qualls, aka The Silent Observer
Lathe Building Pages
http://silent1.home.netcom.com/HomebuiltLathe.htm
Speedway 7x12 Lathe Pages
http://silent1.home.netcom.com/my7x12.htm

Opinions expressed are my own -- take them for what
they're worth
and don't expect them to be perfect.


Evidently while T-Max films have new names and
packaging they were always made in the new plant and have
not changed. The charts may have changed because they are
the result of new testing. I've found that in general
Kodak's charts are pretty close but have encountered what
seems to be errors, even gross errors. The existed on the
charts for the late lamented Plus-X sheet film.


--
---
Richard Knoppow
Los Angeles, CA, USA

"Donald Qualls" wrote in message
news:6VGLc.142206$JR4.20695@attbi_s54...
Indheatec wrote:

Processed my first couple of rolls of 400TX (320 iso)
according to Kodak's
rotary instructions and the neg's are thinner than I
would like them. By my eye
it will take about 10 - 15% more time. What's the
general accord on
development timing of this new film.

There has been considerable speculation that due to an
error in testing
or data recording/collection/editing, Kodak may have
published times for
the wrong dilution of some developers with the new
400TX -- especially
HC-110, where it's widely believed the published times are
closer to
correct for Dilution A than Dilution B.

My recommendation? Forget it's a "different" film, and
treat it like
old TX. The difference between TX and 400TX in most
developers is less
than variations you'd introduce without realizing it, like
changes in
agitation, one-degree differences in temperature, etc.

And in the end, the times you get anywhere are just
starting points;
I've had to cut my times for TMY by almost 50% from most
published times
in order to get normal negatives. The only way to find
the times that
will give *you* the negatives *you* want is to test for
yourself.

--
I may be a scwewy wabbit, but I'm not going to Alcatwaz!
-- E.
J. Fudd, 1954

Donald Qualls, aka The Silent Observer
Lathe Building Pages
http://silent1.home.netcom.com/HomebuiltLathe.htm
Speedway 7x12 Lathe Pages
http://silent1.home.netcom.com/my7x12.htm

Opinions expressed are my own -- take them for what
they're worth
and don't expect them to be perfect.


Evidently while T-Max films have new names and
packaging they were always made in the new plant and have
not changed. The charts may have changed because they are
the result of new testing. I've found that in general
Kodak's charts are pretty close but have encountered what
seems to be errors, even gross errors. The existed on the
charts for the late lamented Plus-X sheet film.


--
---
Richard Knoppow
Los Angeles, CA, USA