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#81
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Used MF Prices --- I Should be Happy but not
Michael wrote:
On 2009-04-06 00:07:48 -0400, rwalker said: On Sat, 04 Apr 2009 18:55:58 +0100, Rob B wrote: snip There are other manufacturer's of film suck as Ilford who are currently releasing their latest emulsions in 120 format. Of late Fuji relented to pressure and reintroduced the famous Velvia 50, so film is not dead just yet. As for the 220 format that may soon disappear ( a couple of years or so) as it is becoming more and more difficult to source. Well, at least I won't be bothered too much any more, then, that my Pentax 67 has a broken 120/220 switch and is stuck in 120 mode. I have just thawed out my last 220 Velvia 50 for the Pentax 6x7 I keep my film refrigerated but not frozen. I assume you freeze yours. I had thought about doing this but have been unsure. How long do you thaw it for, and what is the general condition like once thawed? Rob. |
#82
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Used MF Prices --- I Should be Happy but not
"Rob B" wrote in message ... Michael wrote: On 2009-04-06 00:07:48 -0400, rwalker said: On Sat, 04 Apr 2009 18:55:58 +0100, Rob B wrote: snip There are other manufacturer's of film suck as Ilford who are currently releasing their latest emulsions in 120 format. Of late Fuji relented to pressure and reintroduced the famous Velvia 50, so film is not dead just yet. As for the 220 format that may soon disappear ( a couple of years or so) as it is becoming more and more difficult to source. Well, at least I won't be bothered too much any more, then, that my Pentax 67 has a broken 120/220 switch and is stuck in 120 mode. I have just thawed out my last 220 Velvia 50 for the Pentax 6x7 I keep my film refrigerated but not frozen. I assume you freeze yours. I had thought about doing this but have been unsure. How long do you thaw it for, and what is the general condition like once thawed? Rob. For 120/220 film, generally two hours at room temp is good enough for thawing. If the film is in it's sealed container, there shouldn't be any problems with collecting moisture as it thaws. If you need it thawed faster, you can always hold it in your armpit. If you really need it thawed fast, there's another place on your body where you can thaw it, but I wouldn't recommend it except for recreational purposes! |
#83
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Used MF Prices --- I Should be Happy but not
Ken Hart wrote:
"Rob B" wrote in message I keep my film refrigerated but not frozen. I assume you freeze yours. I had thought about doing this but have been unsure. How long do you thaw it for, and what is the general condition like once thawed? Rob. For 120/220 film, generally two hours at room temp is good enough for thawing. If the film is in it's sealed container, there shouldn't be any problems with collecting moisture as it thaws. If you need it thawed faster, you can always hold it in your armpit. If you really need it thawed fast, there's another place on your body where you can thaw it, but I wouldn't recommend it except for recreational purposes! Guys, please. Film at room temp, or at 39C / 100F for that matter is _frozen_. Putting it in a freezer does not make it any more frozen, just colder. -- -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. -- usenet posts from gmail.com and googlemail.com are filtered out. |
#84
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Used MF Prices --- I Should be Happy but not
"Alan Browne" wrote in message ... Ken Hart wrote: "Rob B" wrote in message I keep my film refrigerated but not frozen. I assume you freeze yours. I had thought about doing this but have been unsure. How long do you thaw it for, and what is the general condition like once thawed? Rob. For 120/220 film, generally two hours at room temp is good enough for thawing. If the film is in it's sealed container, there shouldn't be any problems with collecting moisture as it thaws. If you need it thawed faster, you can always hold it in your armpit. If you really need it thawed fast, there's another place on your body where you can thaw it, but I wouldn't recommend it except for recreational purposes! Guys, please. Film at room temp, or at 39C / 100F for that matter is _frozen_. Putting it in a freezer does not make it any more frozen, just colder. Absolutely correct... An object in a solid state is 'frozen', if that object is then thawed, it becomes liquid. A steel beam in building construction is frozen, even if the building is in the desert. When that beam was originally formed, it was molded (extruded?) in a liquid form. Perhaps if it were heated further than it's liquid point, you could have steel gas. Conversely, oxygen in it's usual state is a gas. If oxygen is cooled enough it becomes a liquid. And if cooled even further, I suppose you could have a solid block of oxygen. But putting your film in the freezer (even though it is already 'frozen') will not doubt slow down any chemical reaction in the emulsion, making it last longer. Perhaps we could agree to say that while we are not freezing the film, we are freezing the chemical reaction in the emulsion? |
#85
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Used MF Prices --- I Should be Happy but not
Ken Hart wrote:
But putting your film in the freezer (even though it is already 'frozen') will not doubt slow down any chemical reaction in the emulsion, making it last longer. Perhaps we could agree to say that while we are not freezing the film, we are freezing the chemical reaction in the emulsion? I'm not disputing the chemical aspect (although that is never 'frozen', just slowed down to a glacial [ahem] pace), just the notion of freezing what is already frozen ... bugs me. -- -- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm -- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm -- [SI] gallery & rulz: http://www.pbase.com/shootin -- e-meil: Remove FreeLunch. -- usenet posts from gmail.com and googlemail.com are filtered out. |
#86
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Used MF Prices --- I Should be Happy but not
Ken Hart wrote:
"Rob B" wrote in message ... Michael wrote: On 2009-04-06 00:07:48 -0400, rwalker said: On Sat, 04 Apr 2009 18:55:58 +0100, Rob B wrote: snip There are other manufacturer's of film suck as Ilford who are currently releasing their latest emulsions in 120 format. Of late Fuji relented to pressure and reintroduced the famous Velvia 50, so film is not dead just yet. As for the 220 format that may soon disappear ( a couple of years or so) as it is becoming more and more difficult to source. Well, at least I won't be bothered too much any more, then, that my Pentax 67 has a broken 120/220 switch and is stuck in 120 mode. I have just thawed out my last 220 Velvia 50 for the Pentax 6x7 I keep my film refrigerated but not frozen. I assume you freeze yours. I had thought about doing this but have been unsure. How long do you thaw it for, and what is the general condition like once thawed? Rob. For 120/220 film, generally two hours at room temp is good enough for thawing. If the film is in it's sealed container, there shouldn't be any problems with collecting moisture as it thaws. If you need it thawed faster, you can always hold it in your armpit. If you really need it thawed fast, there's another place on your body where you can thaw it, but I wouldn't recommend it except for recreational purposes! I think I'll stick with a couple of hours at room temp' thanks for the info, Rob. |
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