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Thread
2006-04-21 by joshscapes
Hello all, How long can one store say 25 or 50 iso b&w film in a freezer, 5, 10, 20 years, ....indefinately? Just wondering in case, in the future, I ever need to stockpile my favorite b&w film due to discontinuance. Thanks in advance, Josh
2006-04-21 by Paul Roark
> How long can one store say 25 or 50 iso b&w film in a freezer, 5, 10, > 20 years, ....indefinately? ... I've never had relatively slow film go bad in my freezer. So, it's now full of Tech Pan (and the refrigerator has enough Technidol developer for all the film). Fast film can apparently be exposed by background radiation -- radon, cosmic rays, etc. However, I've never heard of that for medium or slow film. So, between my personal experience and all I've heard, I'm assuming my slow B&W film will be good for many years. I have no idea, however, how long that is. I'm assuming a few decades of storage is no problem. Paul www.PaulRoark.com
2006-04-21 by Mark Savoia
If it is rolls, I would worry about long term curl issue. We get in film to process sometimes from the 60's and it has an awful curl that makes handling it tough. Mark On Apr 21, 2006, at 11:28 AM, Paul Roark wrote: > > How long can one store say 25 or 50 iso b&w film in a freezer, 5, > 10, > > 20 years, ....indefinately? ... > > I've never had relatively slow film go bad in my freezer. So, it's > now full > of Tech Pan (and the refrigerator has enough Technidol developer > for all the > film). Fast film can apparently be exposed by background > radiation -- > radon, cosmic rays, etc. However, I've never heard of that for > medium or > slow film. So, between my personal experience and all I've heard, I'm > assuming my slow B&W film will be good for many years. I have no > idea, > however, how long that is. I'm assuming a few decades of storage > is no > problem. [Non-text portions of this message have been removed]
2006-04-21 by ginnylady33
Background radiation is a known problem for faster films, true. I store in a lead-bag as a reasonable safeguard, even with slow films. Can't hurt. Regards Ginny --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark" <paul.roark@...> wrote: > > > How long can one store say 25 or 50 iso b&w film in a freezer, 5, 10, > > 20 years, ....indefinately? ... > > I've never had relatively slow film go bad in my freezer. So, it's now full > of Tech Pan (and the refrigerator has enough Technidol developer for all the > film). Fast film can apparently be exposed by background radiation -- > radon, cosmic rays, etc. However, I've never heard of that for medium or
> slow film. So, between my personal experience and all I've heard, I'm > assuming my slow B&W film will be good for many years. I have no idea, > however, how long that is. I'm assuming a few decades of storage is no > problem. > > Paul > www.PaulRoark.com >
2006-04-21 by Allan Chen
The general rules I've heard is that anything slower than 400 is fine for at least a decade without fog. 25 speed film will last for like 50 years without noticeable fog, so I've heard. I have some 10 and 15 year old TXT and I've been adding about 2/3 and 1 stop, respectively, for those ages. Unless you have like 10" of lead you aren't going to prevent the cosmic radiation from getting through there. Delta 3200, for instance, will have noticeable fog increase within 2-3 years no matter what you do. allan ginnylady33 wrote: > Background radiation is a known problem for faster films, true. > I store in a lead-bag as a reasonable safeguard, even with slow films. > Can't hurt. > Regards > Ginny > > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark" > <paul.roark@...> wrote: >>> How long can one store say 25 or 50 iso b&w film in a freezer, 5, 10, >>> 20 years, ....indefinately? ... >> I've never had relatively slow film go bad in my freezer. So, it's > now full >> of Tech Pan (and the refrigerator has enough Technidol developer for > all the >> film). Fast film can apparently be exposed by background radiation -- >> radon, cosmic rays, etc. However, I've never heard of that for > medium or >> slow film. So, between my personal experience and all I've heard, I'm >> assuming my slow B&W film will be good for many years. I have no idea, >> however, how long that is. I'm assuming a few decades of storage is no >> problem. >> >> Paul >> www.PaulRoark.com >> > > > > > > > Please visit the Group Homepage to check the Files, and other resources as they are often being updated. > > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint > > If you wish to receive no emails or just a daily digest, or you wish to unsubscribe, please edit your Membership preferences by visiting this same page. > > Please follow these basic guidelines: > - As threads develop, trim off excess portions of earlier messages to keep them short. > - Good manners are required at all time. No personal attacks or flames. Hostile, aggressive or argumentative users may be removed from the membership without notice. > - Keep your posts and threads related to the group topic of digital B&W printing. Users who persistently make off-topic posts may be removed from the membership. > - By posting on this forum you agree to abide by the group rules and guidelines, and to abide by the actions and decisions of the group Owner and Moderators. See \ufffdGroup Topic, Rules and Guidelines\ufffd in the Files section: > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ > > BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE \ufffdOWNER\ufffd AND \ufffdMODERATORS\ufffd OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE \ufffdOWNER\ufffd AND \ufffdMODERATORS\ufffd OF DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP. > > Yahoo! Groups Links > > > > > > > > > -- http://allan.kaiyen.com http://photos.kaiyen.com
2006-04-21 by Peter Marshall
Not only does Delta 3200 increase fog, but in my experience it also loses speed on storage. Its a great film if used well within its expiry date, and you might extend that slightly by refrigeration, but I wouldn't risk it. However, at the moment there are quite a few new black and white films around, as well as classic materials that have reappeared. Gigabit, Rollei, Foma, Adox, Lucky and a few others as well as Ilford, Kodak and Fuji, so perhaps we don't need to worry for a little while. Peter Marshall petermarshall@... _________________________________________________________________ My London Diary http://mylondondiary.co.uk/ London's Industrial Heritage: http://petermarshallphotos.co.uk/ The Buildings of London etc: http://londonphotographs.co.uk/ and elsewhere...... Allan Chen wrote:
> The general rules I've heard is that anything slower than 400 is fine > for at least a decade without fog. 25 speed film will last for like 50 > years without noticeable fog, so I've heard. > > I have some 10 and 15 year old TXT and I've been adding about 2/3 and 1 > stop, respectively, for those ages. > > Unless you have like 10" of lead you aren't going to prevent the cosmic > radiation from getting through there. Delta 3200, for instance, will > have noticeable fog increase within 2-3 years no matter what you do. > > allan > > ginnylady33 wrote: > >> Background radiation is a known problem for faster films, true. >> I store in a lead-bag as a reasonable safeguard, even with slow films. >> Can't hurt. >> Regards >> Ginny >> >> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark" >> <paul.roark@...> wrote: >> >>>> How long can one store say 25 or 50 iso b&w film in a freezer, 5, 10, >>>> 20 years, ....indefinately? ... >>>> >>> I've never had relatively slow film go bad in my freezer. So, it's >>> >> now full >> >>> of Tech Pan (and the refrigerator has enough Technidol developer for >>> >> all the >> >>> film). Fast film can apparently be exposed by background radiation -- >>> radon, cosmic rays, etc. However, I've never heard of that for >>> >> medium or >> >>> slow film. So, between my personal experience and all I've heard, I'm >>> assuming my slow B&W film will be good for many years. I have no idea, >>> however, how long that is. I'm assuming a few decades of storage is no >>> problem. >>> >>> Paul >>> www.PaulRoark.com >>> >>> >> >> >> >> >> Please visit the Group Homepage to check the Files, and other resources as they are often being updated. >> >> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint >> >> If you wish to receive no emails or just a daily digest, or you wish to unsubscribe, please edit your Membership preferences by visiting this same page. >> >> Please follow these basic guidelines: >> - As threads develop, trim off excess portions of earlier messages to keep them short. >> - Good manners are required at all time. No personal attacks or flames. Hostile, aggressive or argumentative users may be removed from the membership without notice. >> - Keep your posts and threads related to the group topic of digital B&W printing. Users who persistently make off-topic posts may be removed from the membership. >> - By posting on this forum you agree to abide by the group rules and guidelines, and to abide by the actions and decisions of the group Owner and Moderators. See \ufffdGroup Topic, Rules and Guidelines\ufffd in the Files section: >> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/ >> >> BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE \ufffdOWNER\ufffd AND \ufffdMODERATORS\ufffd OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE \ufffdOWNER\ufffd AND \ufffdMODERATORS\ufffd OF DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP. >> >> Yahoo! Groups Links >> >> >> >> >> >> >> >> >> >> > >