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Adjusted Tempatures

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  #1  
Old 07-17-2003, 02:45 AM
Default Adjusted Tempatures



What ever method you use, IMHO I strongly suggest NOT to use a tempature
higher than 68F and the temp that works for me is 65F.
I discovered that 65 with stand development and intermittent agitation
(divide the time by 4 and at those intervals is when I carefully agitate.
For example:
12 minutes at 65F divided by 4 equals 3.
So I agitate for the first minute gently and contiusoly. Let stand, then
agitate for one minute, and so forth until completion. All chemicals and
wash at 65. If you can't wash at 65 then raise the other chemicals until
they reach the wash, preventing grain and reticulation.
I have found that even though there are charts out there that give you
adjusted times for higher temperatures, I always got grain.
Yours,
Tom
From: "Sam G" <(E-Mail Removed)>
Subject: Development times??
Date: Tuesday, July 15, 2003 10:44 PM

If I start from a certain development time recommended by Kodak for TriX
with Xtol at 68degrees. Then if my developer is at a higher temperature,
Kodak's chart shows recommended times for these higher temps. I also have
the temperature graph that appears in the Massive Dev. Chart (the same chart
appears with Ilford products) for extrapolating the a given temp/time
relationship to another temp. Using that graph (obviously a set of linear
relationships) I find that these times are quite far off from the times in
the Kodak tables for other temps. (maybe 15-20% off at 75degrees). Can
anyone explain why that might be so? I would tend to follow Kodak's
recommendations, but does this mean that, for example, most other developers
follow a more linear set of time/temp relationships and Xtol doesn't???

Thanks for any light someone can shed on this matter


Sam





Tom Elliott
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  #2  
Old 07-17-2003, 03:35 AM
John
Guest
 
Posts: n/a
Default Re: Adjusted Tempatures

On Wed, 16 Jul 2003 21:45:01 -0400, "Tom Elliott" <(E-Mail Removed)>
wrote:

>What ever method you use, IMHO I strongly suggest NOT to use a tempature
>higher than 68F and the temp that works for me is 65F.


My current working temp is 80F. No problems.

>I discovered that 65 with stand development and intermittent agitation
>(divide the time by 4 and at those intervals is when I carefully agitate.




>For example:
>12 minutes at 65F divided by 4 equals 3.
>So I agitate for the first minute gently and contiusoly. Let stand, then
>agitate for one minute, and so forth until completion. All chemicals and
>wash at 65. If you can't wash at 65 then raise the other chemicals until
>they reach the wash, preventing grain and reticulation.
>I have found that even though there are charts out there that give you
>adjusted times for higher temperatures, I always got grain.


High granularity is caused by ;

1) High pH developers
2) Extended development time
3) Over-exposed film
4) Variation in processing temps

D-23 works fine at 80F

John
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  #3  
Old 07-17-2003, 05:13 AM
WB3FUP \(Mike Hall\)
Guest
 
Posts: n/a
Default Re: Adjusted Tempatures

Gee! 30 plus years at 75 degrees, can't figure out
what I am doing wrong, since I notice no
difference with negatives developed a lower
temperatures (before I moved to this house)

--
73 es cul

wb3fup
a Salty Bear

"Tom Elliott" <(E-Mail Removed)> wrote in
message
news:19nRa.32498$(E-Mail Removed). ..
> What ever method you use, IMHO I strongly

suggest NOT to use a tempature
> higher than 68F and the temp that works for me

is 65F.
> I discovered that 65 with stand development and

intermittent agitation
> (divide the time by 4 and at those intervals is

when I carefully agitate.
> For example:
> 12 minutes at 65F divided by 4 equals 3.
> So I agitate for the first minute gently and

contiusoly. Let stand, then
> agitate for one minute, and so forth until

completion. All chemicals and
> wash at 65. If you can't wash at 65 then raise

the other chemicals until
> they reach the wash, preventing grain and

reticulation.
> I have found that even though there are charts

out there that give you
> adjusted times for higher temperatures, I always

got grain.
> Yours,
> Tom
> From: "Sam G" <(E-Mail Removed)>
> Subject: Development times??
> Date: Tuesday, July 15, 2003 10:44 PM
>
> If I start from a certain development time

recommended by Kodak for TriX
> with Xtol at 68degrees. Then if my developer is

at a higher temperature,
> Kodak's chart shows recommended times for these

higher temps. I also have
> the temperature graph that appears in the

Massive Dev. Chart (the same chart
> appears with Ilford products) for extrapolating

the a given temp/time
> relationship to another temp. Using that graph

(obviously a set of linear
> relationships) I find that these times are quite

far off from the times in
> the Kodak tables for other temps. (maybe 15-20%

off at 75degrees). Can
> anyone explain why that might be so? I would

tend to follow Kodak's
> recommendations, but does this mean that, for

example, most other developers
> follow a more linear set of time/temp

relationships and Xtol doesn't???
>
> Thanks for any light someone can shed on this

matter
>
>
> Sam
>
>
>



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  #4  
Old 07-17-2003, 09:58 PM
Tom Elliott
Guest
 
Posts: n/a
Default Re: Adjusted Tempatures

This discussion is what I love about photography.
Ten photographers taking the same photo come up with at least ten different
specs to get to the same final print. In reality it has to do with
calibration. Which is also true in the digital realm.
Water is the most important ingredient then comes the chemicals and then the
"nut" behind the wheel.
The most important thing is do what works for you and then stick to it.
I know that others get great results from T-max and all of the associated
chemicals, however, I have never been able to get the results I like using
T-max.
My favorite:
Tri-x-x at various ASA ratings with D23 at various dilution's and A/B split
development but at 65F.

The photos at http://www.tom-elliott-photography.com/special.htm were all on
35mm TriX with D23. The only exception was the Flamenco Dancer series done
on 2-1/4 Rolieflex, Tri-x-x at 1000 ASA with Ultrafin powder while in
Germany.
Metol at low temps helps hide the grain at pushed ASA's.
I need all the help on that end for I use an old D-2 Omega that has been
further modified to use a point source when needed.
My equivalent here in the states is now D23 1:1 at 65F with Tri-x-x.
Since 1992 and hurricane Andrew, I have been in the darkroom on a few times,
and that was to turn my grandson on to photography. I now work in a
digital/analogue highbred environment - shoot on film, transfer to Kodak
PhotoCD Standard or Profession (18MB to 75MB files).
I can do things in Photoshop that I could NEVER do before in my own
darkroom.
One of the best is to make a master digital file to be printed by my photo
lab. I have four prints of the same image done over a span of five years and
you can't tell the difference between them. Plus it is a B&W converted from
a color neg.
Anyway, calibrate, and have fun.
Yours,
Tom


"WB3FUP (Mike Hall)" <(E-Mail Removed)> wrote in message
news:bf57q2$b8c3d$(E-Mail Removed)...
> Gee! 30 plus years at 75 degrees, can't figure out
> what I am doing wrong, since I notice no
> difference with negatives developed a lower
> temperatures (before I moved to this house)
>
> --
> 73 es cul
>
> wb3fup
> a Salty Bear
>
> "Tom Elliott" <(E-Mail Removed)> wrote in
> message
> news:19nRa.32498$(E-Mail Removed). ..
> > What ever method you use, IMHO I strongly

> suggest NOT to use a tempature
> > higher than 68F and the temp that works for me

> is 65F.
> > I discovered that 65 with stand development and

> intermittent agitation
> > (divide the time by 4 and at those intervals is

> when I carefully agitate.
> > For example:
> > 12 minutes at 65F divided by 4 equals 3.
> > So I agitate for the first minute gently and

> contiusoly. Let stand, then
> > agitate for one minute, and so forth until

> completion. All chemicals and
> > wash at 65. If you can't wash at 65 then raise

> the other chemicals until
> > they reach the wash, preventing grain and

> reticulation.
> > I have found that even though there are charts

> out there that give you
> > adjusted times for higher temperatures, I always

> got grain.
> > Yours,
> > Tom
> > From: "Sam G" <(E-Mail Removed)>
> > Subject: Development times??
> > Date: Tuesday, July 15, 2003 10:44 PM
> >
> > If I start from a certain development time

> recommended by Kodak for TriX
> > with Xtol at 68degrees. Then if my developer is

> at a higher temperature,
> > Kodak's chart shows recommended times for these

> higher temps. I also have
> > the temperature graph that appears in the

> Massive Dev. Chart (the same chart
> > appears with Ilford products) for extrapolating

> the a given temp/time
> > relationship to another temp. Using that graph

> (obviously a set of linear
> > relationships) I find that these times are quite

> far off from the times in
> > the Kodak tables for other temps. (maybe 15-20%

> off at 75degrees). Can
> > anyone explain why that might be so? I would

> tend to follow Kodak's
> > recommendations, but does this mean that, for

> example, most other developers
> > follow a more linear set of time/temp

> relationships and Xtol doesn't???
> >
> > Thanks for any light someone can shed on this

> matter
> >
> >
> > Sam
> >
> >
> >

>
>



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  #5  
Old 07-18-2003, 01:09 AM
WB3FUP \(Mike Hall\)
Guest
 
Posts: n/a
Default Re: Adjusted Tempatures

What is even more fun is to project a transparency
at a gathering of photographer's, 10% will
compliment the work; 20% will not be sure what is
wrong, but they will vocalize that "something is a
tad off;" the remaining 70% will be vocal about an
error in exposure, which as we all know is the
critical part of reversal images. What is
interesting is that for everyone that can see a
1/3 to 2/3 stop over exposure you can find someone
who is certain that 1/3 to 2/3 is correct, but the
image is underexposed. You pays your money and
you place your bets.

--
73 es cul

wb3fup
a Salty Bear

"Tom Elliott" <(E-Mail Removed)> wrote in
message
news:UZDRa.16451$(E-Mail Removed). ..
> This discussion is what I love about

photography.
> Ten photographers taking the same photo come up

with at least ten different
> specs to get to the same final print. In reality

it has to do with
> calibration. Which is also true in the digital

realm.
> Water is the most important ingredient then

comes the chemicals and then the
> "nut" behind the wheel.
> The most important thing is do what works for

you and then stick to it.
> I know that others get great results from T-max

and all of the associated
> chemicals, however, I have never been able to

get the results I like using
> T-max.
> My favorite:
> Tri-x-x at various ASA ratings with D23 at

various dilution's and A/B split
> development but at 65F.
>
> The photos at

http://www.tom-elliott-photography.com/special.htm
were all on
> 35mm TriX with D23. The only exception was the

Flamenco Dancer series done
> on 2-1/4 Rolieflex, Tri-x-x at 1000 ASA with

Ultrafin powder while in
> Germany.
> Metol at low temps helps hide the grain at

pushed ASA's.
> I need all the help on that end for I use an old

D-2 Omega that has been
> further modified to use a point source when

needed.
> My equivalent here in the states is now D23 1:1

at 65F with Tri-x-x.
> Since 1992 and hurricane Andrew, I have been in

the darkroom on a few times,
> and that was to turn my grandson on to

photography. I now work in a
> digital/analogue highbred environment - shoot on

film, transfer to Kodak
> PhotoCD Standard or Profession (18MB to 75MB

files).
> I can do things in Photoshop that I could NEVER

do before in my own
> darkroom.
> One of the best is to make a master digital file

to be printed by my photo
> lab. I have four prints of the same image done

over a span of five years and
> you can't tell the difference between them. Plus

it is a B&W converted from
> a color neg.
> Anyway, calibrate, and have fun.
> Yours,
> Tom
>
>
> "WB3FUP (Mike Hall)" <(E-Mail Removed)> wrote in

message
>

news:bf57q2$b8c3d$(E-Mail Removed)...
> > Gee! 30 plus years at 75 degrees, can't figure

out
> > what I am doing wrong, since I notice no
> > difference with negatives developed a lower
> > temperatures (before I moved to this house)
> >
> > --
> > 73 es cul
> >
> > wb3fup
> > a Salty Bear
> >
> > "Tom Elliott" <(E-Mail Removed)> wrote

in
> > message
> >

news:19nRa.32498$(E-Mail Removed). ..
> > > What ever method you use, IMHO I strongly

> > suggest NOT to use a tempature
> > > higher than 68F and the temp that works for

me
> > is 65F.
> > > I discovered that 65 with stand development

and
> > intermittent agitation
> > > (divide the time by 4 and at those intervals

is
> > when I carefully agitate.
> > > For example:
> > > 12 minutes at 65F divided by 4 equals 3.
> > > So I agitate for the first minute gently and

> > contiusoly. Let stand, then
> > > agitate for one minute, and so forth until

> > completion. All chemicals and
> > > wash at 65. If you can't wash at 65 then

raise
> > the other chemicals until
> > > they reach the wash, preventing grain and

> > reticulation.
> > > I have found that even though there are

charts
> > out there that give you
> > > adjusted times for higher temperatures, I

always
> > got grain.
> > > Yours,
> > > Tom
> > > From: "Sam G" <(E-Mail Removed)>
> > > Subject: Development times??
> > > Date: Tuesday, July 15, 2003 10:44 PM
> > >
> > > If I start from a certain development time

> > recommended by Kodak for TriX
> > > with Xtol at 68degrees. Then if my

developer is
> > at a higher temperature,
> > > Kodak's chart shows recommended times for

these
> > higher temps. I also have
> > > the temperature graph that appears in the

> > Massive Dev. Chart (the same chart
> > > appears with Ilford products) for

extrapolating
> > the a given temp/time
> > > relationship to another temp. Using that

graph
> > (obviously a set of linear
> > > relationships) I find that these times are

quite
> > far off from the times in
> > > the Kodak tables for other temps. (maybe

15-20%
> > off at 75degrees). Can
> > > anyone explain why that might be so? I

would
> > tend to follow Kodak's
> > > recommendations, but does this mean that,

for
> > example, most other developers
> > > follow a more linear set of time/temp

> > relationships and Xtol doesn't???
> > >
> > > Thanks for any light someone can shed on

this
> > matter
> > >
> > >
> > > Sam
> > >
> > >
> > >

> >
> >

>
>



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