A Photography forum. PhotoBanter.com

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » PhotoBanter.com forum » General Photography » In The Darkroom
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Time scale



 
 
Thread Tools Display Modes
  #1  
Old October 11th 08, 06:43 PM posted to rec.photo.darkroom
Lofty
external usenet poster
 
Posts: 12
Default Time scale

Hi All
I have just used a Kodak Tmax 100 pro film, It's use by date was May 1997,
and developed it in Ilford DDX and the results were stunning. Very smooth
with nice contrast.
How long can film be left after it's use by date, and still have acceptable
results

Thanks in Advance

Lofty


  #2  
Old October 12th 08, 11:17 PM posted to rec.photo.darkroom
Lofty
external usenet poster
 
Posts: 12
Default Time scale


"Peter" wrote in message
...
On Oct 11, 7:43 pm, "lofty" wrote:
Hi All
I have just used a Kodak Tmax 100 pro film, It's use by date was May 1997,
and developed it in Ilford DDX and the results were stunning. Very smooth
with nice contrast.
How long can film be left after it's use by date, and still have
acceptable
results

Thanks in Advance

Lofty


Time and temperature matter. At cool room temperature (60 - 68 F), I
find that there is not much change in ten years. I see a slight
change in base fog and some change in speed (don't have my notes in
front of me). In 25 years, there is a definite increase in base fog
and further loss in speed. In some cases older film is unusable, but
I'm less sure of the storage that film received.

Generally, 10 year old film is not a worry, but a little more exposure
is a good idea; older than that needs a test. If it has been more
carefully stored (e.g., frozen) those times seem to extend somewhat.
I also find that faster film seems to deteriorate more rapidly.

thanks Peter.


  #3  
Old October 17th 08, 06:29 AM posted to rec.photo.darkroom
Alec Jones
external usenet poster
 
Posts: 1
Default Time scale


"Shiva Das" wrote in message
...
The only followup I would add is if the film is frozen (like my
20-year-old Plus-X sheet film) more damage can be done from condensation
due to improper thawing than from age. (Yes, my bad on 25-year-old
Verichrome Pan 2-1/4 to my great regret.)

I've been advised not to freeze B/W film if a stable
temperature/humidity condition can be maintained, but YMMV.

--
om shanti shanti shanti


I'd like to know what you mean by "improper thawing". I've got lots of
frozen film. What did you do wrong - open it before it was fully thawed?

alecj


  #4  
Old October 17th 08, 12:40 PM posted to rec.photo.darkroom
Nicholas O. Lindan
external usenet poster
 
Posts: 1,227
Default Time scale

"Shiva Das" wrote
The only followup I would add is if the film is frozen
... more damage can be done from condensation
due to improper thawing than from age


Can you post an example showing condensation damage?

--
Nicholas O. Lindan, Cleveland, Ohio
Darkroom Automation: F-Stop Timers, Enlarging Meters
http://www.darkroomautomation.com/da-main.htm
n o lindan at ix dot netcom dot com


  #5  
Old October 17th 08, 05:30 PM posted to rec.photo.darkroom
Ken Hart1
external usenet poster
 
Posts: 79
Default Time scale


"Alec Jones" wrote in message
. ..


I'd like to know what you mean by "improper thawing". I've got lots of
frozen film. What did you do wrong - open it before it was fully thawed?

alecj

The recommendation is to not open the sealed foil package or plastic can
until the film has come up to room temperature. I vaguely recall a chart
from Kodak listing 'thaw' times for different packaging types-- a box of 100
sheets of 8x10 film would require longer to thaw than a single roll of 24
exposure 35mm film.

I've never seen an instance of damage due to condensation, but then I've
never tempted fate by taking film from the freezer straight to the camera. I
would suspect that the damage would be that moisture condensing on the
surface of the film could cause it to stick to an adjacent layer of film or
to areas of the camera that contact the film.


  #6  
Old October 17th 08, 06:22 PM posted to rec.photo.darkroom
Thor Lancelot Simon
external usenet poster
 
Posts: 163
Default Time scale

In article ,
Ken Hart1 wrote:

"Alec Jones" wrote in message
...


I'd like to know what you mean by "improper thawing". I've got lots of
frozen film. What did you do wrong - open it before it was fully thawed?

alecj

The recommendation is to not open the sealed foil package or plastic can
until the film has come up to room temperature. I vaguely recall a chart
from Kodak listing 'thaw' times for different packaging types-- a box of 100
sheets of 8x10 film would require longer to thaw than a single roll of 24
exposure 35mm film.


Despite the sealed packaging, Kodak recommends against frozen storage for
a number of types of color materials. Look up their current recommendations
on storage and handling of color process control strips; they found problems
several years ago evidently caused by freezing, and now recommend against it.

--
Thor Lancelot Simon
"Even experienced UNIX users occasionally enter rm *.* at the UNIX
prompt only to realize too late that they have removed the wrong
segment of the directory structure." - Microsoft WSS whitepaper
  #7  
Old October 17th 08, 06:43 PM posted to rec.photo.darkroom
Richard Knoppow
external usenet poster
 
Posts: 751
Default Time scale


"Nicholas O. Lindan" wrote in message
m...
"Shiva Das" wrote
The only followup I would add is if the film is frozen
... more damage can be done from condensation
due to improper thawing than from age


Can you post an example showing condensation damage?

--
Nicholas O. Lindan, Cleveland, Ohio
Darkroom Automation: F-Stop Timers, Enlarging Meters
http://www.darkroomautomation.com/da-main.htm
n o lindan at ix dot netcom dot com

I've had condensation damage on printing paper opened
too soon. It took the form of blotches in the form of
droplets. I tossed this stuff so I don't have anything to
scan.


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



  #8  
Old October 17th 08, 07:09 PM posted to rec.photo.darkroom
____
external usenet poster
 
Posts: 534
Default Time scale

In article ,
"Ken Hart1" wrote:

"Alec Jones" wrote in message
. ..


I'd like to know what you mean by "improper thawing". I've got lots of
frozen film. What did you do wrong - open it before it was fully thawed?

alecj

The recommendation is to not open the sealed foil package or plastic can
until the film has come up to room temperature. I vaguely recall a chart
from Kodak listing 'thaw' times for different packaging types-- a box of 100
sheets of 8x10 film would require longer to thaw than a single roll of 24
exposure 35mm film.

I've never seen an instance of damage due to condensation, but then I've
never tempted fate by taking film from the freezer straight to the camera. I
would suspect that the damage would be that moisture condensing on the
surface of the film could cause it to stick to an adjacent layer of film or
to areas of the camera that contact the film.


Standard rule of thumb from the refrigerator is 4 hours. Frozen I would
say 24 hours minimum.

--
Reality is a picture perfected and never looking back.
  #9  
Old October 18th 08, 12:56 AM posted to rec.photo.darkroom
Nicholas O. Lindan
external usenet poster
 
Posts: 1,227
Default Time scale

"Ken Hart1" wrote

I've never seen an instance of damage due to condensation, but then I've
never tempted fate by taking film from the freezer straight to the camera.


I've never seen an instance either, and I have been making a
point of tempting fate by taking film directly from the freezer
to the camera or film holder. I even breathe on the film and the
inside of the camera while loading in hopes something will happen
- but no joy.

I have not opened a stack of paper straight from the freezer so I
can't comment there. And the freezer I use is the freezer on the top
of the 'fridge that sits at 0F, not a -40F/C deep-freeze.

IMO, the 'wait two hours' before loading film from the freezer is in
the same vein as 'wait two hours after lunch before swimming.' There
may be cases where it is valid, but it is 99% old wive's tail. Kodak's
numbers seem to be 2x the time it takes for a roll of film to come
to temperature equilibrium - a nice number, but so what?

I think folks get mildly hysterical about it because it is something
that is safe to fuss over - nothing bad ever happens - and some people
just like to fuss. A bit of Polonius in all of us.

I think I'll put a fresh box of paper in the freezer, though ...

--
Nicholas O. Lindan, Cleveland, Ohio
Darkroom Automation: F-Stop Timers, Enlarging Meters
http://www.darkroomautomation.com/da-main.htm
n o lindan at ix dot netcom dot com


  #10  
Old October 18th 08, 02:13 AM posted to rec.photo.darkroom
Thor Lancelot Simon
external usenet poster
 
Posts: 163
Default Time scale

In article ,
Nicholas O. Lindan wrote:

I think folks get mildly hysterical about it because it is something
that is safe to fuss over - nothing bad ever happens - and some people
just like to fuss. A bit of Polonius in all of us.

I think I'll put a fresh box of paper in the freezer, though ...


Kodak also recommends against freezing their factory-exposed process
control strips for C41. I don't know about E6. If you can find the
document on the Kodak web site from when they changed the recommendation
about four or five years ago, it actually discusses the experimental
basis for this and gives some (very slight) detail on changes in their
emulsions that they believe led to the change in performance after freezing.

Of course, this is _preexposed_ film meant to give predictable sensiometric
results after weeks or even months of storage. That's some major serious
voodoo going on there -- an electron knocked from this orbit to that orbit
as the substrate changes phase could change a lot more than you'd think --
and unexposed film is unquestionably much more forgiving.


--
Thor Lancelot Simon
"Even experienced UNIX users occasionally enter rm *.* at the UNIX
prompt only to realize too late that they have removed the wrong
segment of the directory structure." - Microsoft WSS whitepaper
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
d300 on a scale of 1 to 10...?? ~^ beancounter ~^ Digital Photography 7 January 6th 08 11:31 AM
On a scale of 1 - 10.... BingBangBoing Digital Photography 8 November 1st 06 07:37 PM
The Definitive Chord & Scale Bible - Literally EVERY chord and scale! Kind of Blue2 Digital Photography 1 February 8th 05 11:14 PM
The Definitive Chord & Scale Bible - Literally EVERY chord and scale! Kind of Blue234 Digital Photo Equipment For Sale 0 February 8th 05 06:43 PM
Enlarger Scale ATIPPETT In The Darkroom 5 July 4th 04 02:21 AM


All times are GMT +1. The time now is 10:40 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 PhotoBanter.com.
The comments are property of their posters.