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#1
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fridge and heat problems
Here in South of Spain, we are experiencing very high temperatu
+-40°C/104°F. And I fear for my exposed films. Can I put those in the fridge once exposed? Also, the room were I usually developped my b&w films is at a temperature of 26°C/79°F. Do you think there is a danger if i develop in this room in a bain-marie of 20°C/68°F. Rgds, Ed |
#2
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fridge and heat problems
Edwin wrote:
Here in South of Spain, we are experiencing very high temperatu +-40=C2=B0C/104=C2=B0F. And I fear for my exposed films. Can I put thos= e in the fridge once exposed? Also, the room were I usually developped my b&w I do this all the time. films is at a temperature of 26=C2=B0C/79=C2=B0F. Do you think there is= a danger if i develop in this room in a bain-marie of 20=C2=B0C/68=C2=B0F. Rgds,= Ed A water bath will work just fine if you can keep the water cool. I have the opposite problem with colour developing. What I do is fill a picnic cooler with hot water and stick all the chemicals inside that. Something insulted will change temp slower then just an open tray. =20=20 Nick |
#3
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fridge and heat problems
Uzytkownik "Edwin" napisal w wiadomosci Here in South of Spain, we are experiencing very high temperatu +-40°C/104°F. And I fear for my exposed films. Can I put those in the fridge once exposed? Despite living in a colder location, I always put the films I exposed in the fridge, until I develop them. When you get ready to develop, simply let them stand for a couple of hours after you take them out of the fridge. Regards Magdalena |
#4
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fridge and heat problems
"Edwin" wrote in message
om... Here in South of Spain, we are experiencing very high temperatu +-40°C/104°F. I can relate; here in Sacramento, California, it gets up to 120 F in the summer. The best I can keep my darkroom is about 80 F. I keep all my films in the freezer, both before I expose them, and after if there's going to be a delay in processing. If using open trays, you can buy those little reusable containers that you freeze (or even water in a *partially* filled ziplock bag) and then put them in the trays briefly. If you use hand-held daylight tanks, use a large print tray as a "bath" to let the tank sit in when you are not aggitating it. I use a Jobo CPP-2 most of the time. With it an similar processors, *partially* fill the chemistry bottles you are not using with water, and put them in the freezer with the lids off (don't want them to rupture!). Then put them where they'd normally sit in the processor. Within half an hour, my temps are stabilized at 68 F +/- 0.1 F (my preferred temp). As long as you make sure the ice doesn't all melt before you're done, it works fine, and keeps your ice from jamming the tube motor. Open ice chunks are a very bad thing! -- Theo Benson, MA Grizzly Glen Photography www.chameleon.net/ursus |
#5
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fridge and heat problems
Same here, but one warning, put the exposed film rolls in an airtight
container or ZIP-lok type bag before chilling and let the package warm back to room temp before processing, this will minimize condensation on the film rolls. Water baths work well, to cool the water you can either use ice in bags or use empty PETE soda pop bottles filled with water and then frozen to cool the bath. The bags are OK in the water bath but I always hesitate to apply them directly to my solutions for fear of leaks and unwanted dilution of my processing solutions. -- darkroommike ---------- "Edwin" wrote in message om... Here in South of Spain, we are experiencing very high temperatu +-40°C/104°F. And I fear for my exposed films. Can I put those in the fridge once exposed? Also, the room were I usually developped my b&w films is at a temperature of 26°C/79°F. Do you think there is a danger if i develop in this room in a bain-marie of 20°C/68°F. Rgds, Ed |
#6
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fridge and heat problems
Edwin wrote:
Here in South of Spain, we are experiencing very high temperatu +-40=B0C/104=B0F. And I fear for my exposed films. Can I put those in t= he fridge once exposed? Also, the room were I usually developped my b&w films is at a temperature of 26=B0C/79=B0F. Do you think there is a dan= ger if i develop in this room in a bain-marie of 20=B0C/68=B0F. Rgds, Ed Yes, it's okay to put your exposed film back in the fridge, as long as=20 you a) put it in a vapor-tight container, and b) let it warm before=20 opening the vapor barrier, to prevent condensation from damaging the=20 emulsion. And you could develop most B&W materials at the ambient temperature of=20 26 C, all you'd have to do is shorten the process time to compensate for = the increase in acitivity with temperature. If you do choose to chill=20 your solutions to 20 C, be aware that a small increase in temperature=20 from one solution to the next can cause reticulation, while decreases=20 generally don't; that is, it's better to have your stop and fixer=20 progressively cooler than to have them progressively warmer. Best of=20 all, work at a constant temperature (like that of the room). --=20 I may be a scwewy wabbit, but I'm not going to Alcatwaz! -- E. J. Fudd, 1954 Donald Qualls, aka The Silent Observer Lathe Building Pages http://silent1.home.netcom.com/HomebuiltLathe.htm Speedway 7x12 Lathe Pages http://silent1.home.netcom.com/my7x12.htm Opinions expressed are my own -- take them for what they're worth and don't expect them to be perfect. |
#7
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fridge and heat problems
Nick Zentena wrote:
Edwin wrote: Here in South of Spain, we are experiencing very high temperatu +-40°C/104°F. And I fear for my exposed films. Can I put those in the fridge once exposed? Also, the room were I usually developped my b&w I do this all the time. films is at a temperature of 26°C/79°F. Do you think there is a danger if i develop in this room in a bain-marie of 20°C/68°F. Rgds, Ed A water bath will work just fine if you can keep the water cool. I have the opposite problem with colour developing. What I do is fill a picnic cooler with hot water and stick all the chemicals inside that. Something insulted will change temp slower then just an open tray. ^^^^^^^^ Nick I think I will try what you describe. I have a picnic cooler and can cuss in two languages fluently and can do a few epithets in a couple others. Do you think I need to match the language to the country of origin of the developer? I can't cuss worth a darn in German. Does that mean I should not use Rodinal? Bert very tongue-in-cheek |
#8
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fridge and heat problems
BertS wrote:
I think I will try what you describe. I have a picnic cooler and can cuss in two languages fluently and can do a few epithets in a couple others. Do you think I need to match the language to the country of origin of the developer? I can't cuss worth a darn in German. Does that mean I should not use Rodinal? The problem is you'll need a german sense of humour-)))) Ilford products are easy just watch plenty of Monty Python. I use D-23 and make sure I've got the stooges on the TV. Nick |
#9
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fridge and heat problems
"Nick Zentena" wrote
BertS wrote: I can't cuss worth a darn in German. The problem is you'll need a German sense of humour-))) Now that is an intro.... I think it best to know "nothink" at this juncture. -- Nicholas O. Lindan, Cleveland, Ohio Consulting Engineer: Electronics; Informatics; Photonics. |
#10
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fridge and heat problems
Nick Zentena wrote:
BertS wrote: I think I will try what you describe. I have a picnic cooler and can cuss in two languages fluently and can do a few epithets in a couple others. Do you think I need to match the language to the country of origin of the developer? I can't cuss worth a darn in German. Does that mean I should not use Rodinal? The problem is you'll need a german sense of humour-)))) Ilford products are easy just watch plenty of Monty Python. I use D-23 and make sure I've got the stooges on the TV. Nick Well, there is always Schultz and Colonel Klink. If that is not suitable then "I know nottink!" Bert |
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