to sell some of my/your film stash or not?

jnamia

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NB23 said:
You see, there is a good reason to
Freeze film: Pieces of metal! For the film canisters’ sake, please keep them in the feeezer. Do it for them.
Click to expand...

I forgot to mention the 6 credit cards I maxed out are frozen in the ice, I need to make it hard to spend.
film has no point in being in the freezer, im always amazed people have believed that nonsense. you know Hotpoint, Whirlpool and Maytag, Kodak and the electric company are laughing all the way to the bank, right ?
 

NB23

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J
I’m not sure I follow you on this... nobody purchased an Extra freezer because of kodak...
 

jnamia

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NB23 said:
J

I’m not sure I follow you on this... nobody purchased an Extra freezer because of kodak...
Click to expand...

people do / have and sometimes go online and brag about it.
whatever, keeps them happy I guess ..
I have a long screed to write so I'll just stop ..
 
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Don_ih

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Lower temperatures help preserve film sensitivity. Freezing practically prevents film from losing sensitivity. Freezing does not prevent fog due to ambient radiation. These aren't myths. They're factual statements based on the nature of film emulsion.
 

jnamia

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who cares about it's sensitivity being preserved. ...

"I am shooting this film that I still rate at iso400 isn't it great, it's still fast because it was frozen for years in my chest freezer, but it's so fogged I can't make anything out on the negative"

its a waste of time, I'm not drinking the koolaid, I have better things to waste my money that is on ..
 

Don_ih

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I actually only care that you're spreading misinformation. There's little value lying about how things work. There's nothing to gain.
 

jnamia

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spreading misinformation?
I said that it will be fogged and the film will be worthless and you said it would be fogged yourself
Don Heisz said:
Freezing does not prevent fog due to ambient radiation.
Click to expand...

I never said anything about losing speed, I said it was a wasted effort it degrades .. degrades is FOG and fog makes film useless if someone doesn't want to jump through chemical hoops to maybe fix it a little. it doesn't and it's an expensive mistake if the photographs were important, not sure what the point is. are there labs that advertise they will magically get rid of fogged color and black and white films ? I've never heard of one.
I think the industry has done people a huge disservice telling people that it somehow preserves their film if it is cold stored, it doesn't. preserved film means no fog and full speed, like it came out of the factory.

if you freeze your film, good luck with that...
 
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Saganich

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Background gamma radiation is real and is highly variable from location to location depending on geology and building materials. In my subbasement office, I measure consistently 300 counts per minute of background gamma radiation with a detector that is about 1% efficient. In the concrete hallway outside my office that increases 3x. I would estimate that over 10 years the radiation dose to film to be about 100 mSv. I believe 100 mSv dose to your film from an airport scanner will result in a noticeable effect assuming equivalent wavelengths between x-ray and gamma.

Effects of radiation on photographic film. A study (Technical Report) | OSTI.GOV

The U.S. Department of Energy's Office of Scientific and Technical Information
www.osti.gov
 

NB23

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Are you saying that keeping film in your office for a decade equates to around 4 x-ray zaps?

O
 

Saganich

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Sirius Glass

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As far as ones stash goes, I say if you got'em smok'em.
 

Saganich

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Yup. I will add that freezer construction does offer some protection from longer wavelength (or soft) gamma radiation, which is mostly responsible for film fogging.
 

Don_ih

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jnamia said:
I said it was a wasted effort
Click to expand...

Yet it isn't a wasted effort. Freezing preserves film sensitivity and ambient radiation fogging is consistent and not very significant. The problem with xray fogging is the fact that it does it in bands of increasing and decreasing exposure. That's not the case with ambient radiation.
 

MattKing

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Thanks everyone for all the useful factual information about the effects of radiation and freezing.
There is enough here now for people to make their own decisions on the inherent risks and their relative magnitude.
In order to prevent having to shut this thread down, or having to eviscerate it with wholesale editing of arguments, can we get back to the rest of the subject at hand please?
 
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Don_ih

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Well, if you're gonna be that way about it....

If you haven't been dipping into that stash, sell all the film and buy as much new film as you will immediately use. Then don't buy any more until you use all of that.
If you have been using the film and not buying new film, don't sell it - just keep using it until it's gone.

I wouldn't sell it. I'd use it.
 

MattKing

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Sirius Glass

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Well since I am keeping it from the hoarders, I will continue using it and replenishing as needed, the price is good or yet another film is about to be or has been discontinued.
 
OP
OP

destroya

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well, all the mumbo jumbo in prior posts made me go out today and shoot 2 sheets of 16 year old 4x5 velvia 50 that was frozen. results were perfect, just as expected. funny, it takes a lot to make me smile lately and just looking at 4x5 slides on the light table always makes me remember why I bought, stored, still buy buy and shoot film, along with a big smile

sorry for the toxic topic. it was just a passing thought that had me thinking, never meant to stir the pot. now, everyone go out and shoot some film!!!

john
 

MartinCrabtree

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6 maxed out credit cards? man you do have things to worry about other than film. So do it.
 
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