Archived posting to the Leica Users Group, 2009/06/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks Henning. It's just slow slide, so I should be okay... On Jun 3, 2009, at 1:21 AM, Henning Wulff wrote: > At 3:23 PM +0800 6/2/09, Thein Onn Ming wrote: >> Quick question for the film experts out there - I discovered a >> cache of slide film (velvia 50, 100, provia 100) in my freezer >> while looking for something for dinner the other day. Any ideas as >> to whether it's still useable, or is going to trigger horrible >> color shifts? Expiry date is mid-2007, and it's been stored >> refrigerated both in the store and since I bought it. Instinct >> tells me it's probably fine, but what do you think? >> >> Thanks in advance! >> >> Ming >> >> THEIN Onn Ming >> *photohorologer ming at www.mingthein.com >> www.flickr.com/mingthein >> >> >> >> > > > It'll be just fine. Frozen slow film lasts longest. Slow B&W film > is probably OK even 50 years out of date and kept at room > temperature. Might have lost a little speed. 50 year old colour > negative film is not good; in part because it was no good in the > first place. > > 'Pro' colour negative film that is out of date and has not been > frozen is doubtful and I wouldn't use it for anything important. > Reversal colour seems a little more forgiving. The main problem > with colour films is colour shift. The various layers lose speed at > different rates, so the colours go wonky. Higher speed colour films > are more problematic, and I wouldn't use 800 or higher colour films > past their expiration dates. > > B&W film is generally fine even if out of date for a number of > years even if it hasn't been in a fridge. Again, some speed loss > may occur. The really fast films like 3200 Kodak and Ilford and > 1600 Fuji are not that good past their expiration date even when > frozen as enough cosmic rays go through fridges, and these films > are sensitive enough to them to start fogging them. HIE also has > some of this, as it is actually extremely sensitive. Keep it > frozen, but quality will decrease to some degree. > > -- > > * Henning J. Wulff > /|\ Wulff Photography & Design > /###\ mailto:henningw at archiphoto.com > |[ ]| http://www.archiphoto.com > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information THEIN Onn Ming *photohorologer ming at www.mingthein.com www.flickr.com/mingthein