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How do I safety check that there is no light in Darkroom / Darkbag?
Can leaving a print in fixer too long cause damage/staining?What kind of darkroom fan will fit in a windowHow to make color darkroom prints?Why is a dark-room safelight safe?Can I develop black and white photo paper with T-Max developer?How can I avoid a yellowish hue in my darkroom print highlights?Light proofing a doorwayAre there consumer/prosumer-level digital-to-film or digital-to-photo-paper projectors/enlargers?How do I give a darkroom course without negatives from the attendees?How long do XTOL and D-76 last unmixed?
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Noon question, but:
How do I safety check that there is no light in Darkroom / Darkbag?
film developing darkroom
asked Aug 1 at 22:11
Andy AndyAndy Andy
1391 silver badge9 bronze badges
add a comment |
Noon question, but:
How do I safety check that there is no light in Darkroom / Darkbag?
film developing darkroom
asked Aug 1 at 22:11
Andy AndyAndy Andy
1391 silver badge9 bronze badges
2
"Noon question" - I am not trying to nitpick on the typo, but it's funny. Keeping no light in darkroom at noon is probably even harder. (sorry, I couldn't resist)
– Grzegorz Oledzki
Aug 4 at 19:53
I was thinking to edit it, but in a way makes sense :)
– Andy Andy
Aug 5 at 18:21
add a comment |
Noon question, but:
How do I safety check that there is no light in Darkroom / Darkbag?
film developing darkroom
asked Aug 1 at 22:11
Andy AndyAndy Andy
1391 silver badge9 bronze badges
Noon question, but:
How do I safety check that there is no light in Darkroom / Darkbag?
film developing darkroom
film developing darkroom
asked Aug 1 at 22:11
Andy AndyAndy Andy
1391 silver badge9 bronze badges
asked Aug 1 at 22:11
Andy AndyAndy Andy
1391 silver badge9 bronze badges
asked Aug 1 at 22:11
Andy AndyAndy Andy
1391 silver badge9 bronze badges
asked Aug 1 at 22:11
Andy AndyAndy Andy
1391 silver badge9 bronze badges
asked Aug 1 at 22:11
Andy AndyAndy Andy
1391 silver badge9 bronze badges
1391 silver badge9 bronze badges
2
"Noon question" - I am not trying to nitpick on the typo, but it's funny. Keeping no light in darkroom at noon is probably even harder. (sorry, I couldn't resist)
– Grzegorz Oledzki
Aug 4 at 19:53
I was thinking to edit it, but in a way makes sense :)
– Andy Andy
Aug 5 at 18:21
add a comment |
2
"Noon question" - I am not trying to nitpick on the typo, but it's funny. Keeping no light in darkroom at noon is probably even harder. (sorry, I couldn't resist)
– Grzegorz Oledzki
Aug 4 at 19:53
I was thinking to edit it, but in a way makes sense :)
– Andy Andy
Aug 5 at 18:21
2
2
"Noon question" - I am not trying to nitpick on the typo, but it's funny. Keeping no light in darkroom at noon is probably even harder. (sorry, I couldn't resist)
– Grzegorz Oledzki
Aug 4 at 19:53
"Noon question" - I am not trying to nitpick on the typo, but it's funny. Keeping no light in darkroom at noon is probably even harder. (sorry, I couldn't resist)
– Grzegorz Oledzki
Aug 4 at 19:53
I was thinking to edit it, but in a way makes sense :)
– Andy Andy
Aug 5 at 18:21
I was thinking to edit it, but in a way makes sense :)
– Andy Andy
Aug 5 at 18:21
add a comment |
2 Answers
2
active
oldest
votes
If you are talking about locating a light leak in a changing bag for loading film into magazines and cameras without a darkroom available…
Periodically, to check the condition of your changing bag, put a bright light inside the bag through one of the sleeves. Close up the bag. Sit in the darkroom or a closet with no light for a few minutes to let your eyes acclimate. Turn the bag over. Manipulate it. Turn it every which way. Look at it from all angles and pretty soon, you'll see every pinhole if there is one.
It's easier to see a bright light in a dark room because your eyes will dilate within a few minutes to rival a sensitive emulsion.
Good Luck.
answered Aug 2 at 1:26
StanStan
4,86910 silver badges26 bronze badges
1
Changing bag hack: Make a frame to keep the bag open like a tent frame using a construction set made of dowels and blocks such as TinkerToy™
– Stan
Aug 2 at 1:31
add a comment |
In the darkroom, place a piece of the material you will be developing, flat, face up, on the work space. Place a handful of coins on this material. Using a timer, remove a coin every 5 minutes. 12 coins will cover 1 hour. At the end of the time span, develop the film or photo paper. A perfect darkroom will leave no evidence. An unsafe darkroom, reveals circular images of the coins. This test will tell you how long it safe to have work out.
answered Aug 1 at 22:38
Alan MarcusAlan Marcus
28.1k3 gold badges31 silver badges65 bronze badges
This is more useful with photo paper than film.
– Davidw
Aug 2 at 16:36
@Davidw Or sheet film, or (to a degree) medium format film. But not much useful for 35mm or small formats.
– gparyani
Aug 2 at 17:40
@Davidw -- Works for sheet film or 35mm or 16mm -- you just change the size to smaller objects.
– Alan Marcus
Aug 2 at 18:02
3
@gparyani 35mm needs only to be pulled from the closed cassette by a fixed amount after each time interval, process, and then count the stripes after drying the roll.
– Stan
Aug 2 at 20:47
@AlanMarcus Does one sit in the darkroom for 13 hours or can I get in and out somehow (or is this another question, kind of?) : ^ )
– Stan
Aug 4 at 12:58
|
show 6 more comments
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
If you are talking about locating a light leak in a changing bag for loading film into magazines and cameras without a darkroom available…
Periodically, to check the condition of your changing bag, put a bright light inside the bag through one of the sleeves. Close up the bag. Sit in the darkroom or a closet with no light for a few minutes to let your eyes acclimate. Turn the bag over. Manipulate it. Turn it every which way. Look at it from all angles and pretty soon, you'll see every pinhole if there is one.
It's easier to see a bright light in a dark room because your eyes will dilate within a few minutes to rival a sensitive emulsion.
Good Luck.
answered Aug 2 at 1:26
StanStan
4,86910 silver badges26 bronze badges
1
Changing bag hack: Make a frame to keep the bag open like a tent frame using a construction set made of dowels and blocks such as TinkerToy™
– Stan
Aug 2 at 1:31
add a comment |
If you are talking about locating a light leak in a changing bag for loading film into magazines and cameras without a darkroom available…
Periodically, to check the condition of your changing bag, put a bright light inside the bag through one of the sleeves. Close up the bag. Sit in the darkroom or a closet with no light for a few minutes to let your eyes acclimate. Turn the bag over. Manipulate it. Turn it every which way. Look at it from all angles and pretty soon, you'll see every pinhole if there is one.
It's easier to see a bright light in a dark room because your eyes will dilate within a few minutes to rival a sensitive emulsion.
Good Luck.
answered Aug 2 at 1:26
StanStan
4,86910 silver badges26 bronze badges
1
Changing bag hack: Make a frame to keep the bag open like a tent frame using a construction set made of dowels and blocks such as TinkerToy™
– Stan
Aug 2 at 1:31
add a comment |
If you are talking about locating a light leak in a changing bag for loading film into magazines and cameras without a darkroom available…
Periodically, to check the condition of your changing bag, put a bright light inside the bag through one of the sleeves. Close up the bag. Sit in the darkroom or a closet with no light for a few minutes to let your eyes acclimate. Turn the bag over. Manipulate it. Turn it every which way. Look at it from all angles and pretty soon, you'll see every pinhole if there is one.
It's easier to see a bright light in a dark room because your eyes will dilate within a few minutes to rival a sensitive emulsion.
Good Luck.
answered Aug 2 at 1:26
StanStan
4,86910 silver badges26 bronze badges
If you are talking about locating a light leak in a changing bag for loading film into magazines and cameras without a darkroom available…
Periodically, to check the condition of your changing bag, put a bright light inside the bag through one of the sleeves. Close up the bag. Sit in the darkroom or a closet with no light for a few minutes to let your eyes acclimate. Turn the bag over. Manipulate it. Turn it every which way. Look at it from all angles and pretty soon, you'll see every pinhole if there is one.
It's easier to see a bright light in a dark room because your eyes will dilate within a few minutes to rival a sensitive emulsion.
Good Luck.
answered Aug 2 at 1:26
StanStan
4,86910 silver badges26 bronze badges
answered Aug 2 at 1:26
StanStan
4,86910 silver badges26 bronze badges
answered Aug 2 at 1:26
StanStan
4,86910 silver badges26 bronze badges
answered Aug 2 at 1:26
StanStan
4,86910 silver badges26 bronze badges
4,86910 silver badges26 bronze badges
1
Changing bag hack: Make a frame to keep the bag open like a tent frame using a construction set made of dowels and blocks such as TinkerToy™
– Stan
Aug 2 at 1:31
add a comment |
1
Changing bag hack: Make a frame to keep the bag open like a tent frame using a construction set made of dowels and blocks such as TinkerToy™
– Stan
Aug 2 at 1:31
1
1
Changing bag hack: Make a frame to keep the bag open like a tent frame using a construction set made of dowels and blocks such as TinkerToy™
– Stan
Aug 2 at 1:31
Changing bag hack: Make a frame to keep the bag open like a tent frame using a construction set made of dowels and blocks such as TinkerToy™
– Stan
Aug 2 at 1:31
add a comment |
In the darkroom, place a piece of the material you will be developing, flat, face up, on the work space. Place a handful of coins on this material. Using a timer, remove a coin every 5 minutes. 12 coins will cover 1 hour. At the end of the time span, develop the film or photo paper. A perfect darkroom will leave no evidence. An unsafe darkroom, reveals circular images of the coins. This test will tell you how long it safe to have work out.
answered Aug 1 at 22:38
Alan MarcusAlan Marcus
28.1k3 gold badges31 silver badges65 bronze badges
This is more useful with photo paper than film.
– Davidw
Aug 2 at 16:36
@Davidw Or sheet film, or (to a degree) medium format film. But not much useful for 35mm or small formats.
– gparyani
Aug 2 at 17:40
@Davidw -- Works for sheet film or 35mm or 16mm -- you just change the size to smaller objects.
– Alan Marcus
Aug 2 at 18:02
3
@gparyani 35mm needs only to be pulled from the closed cassette by a fixed amount after each time interval, process, and then count the stripes after drying the roll.
– Stan
Aug 2 at 20:47
@AlanMarcus Does one sit in the darkroom for 13 hours or can I get in and out somehow (or is this another question, kind of?) : ^ )
– Stan
Aug 4 at 12:58
|
show 6 more comments
In the darkroom, place a piece of the material you will be developing, flat, face up, on the work space. Place a handful of coins on this material. Using a timer, remove a coin every 5 minutes. 12 coins will cover 1 hour. At the end of the time span, develop the film or photo paper. A perfect darkroom will leave no evidence. An unsafe darkroom, reveals circular images of the coins. This test will tell you how long it safe to have work out.
answered Aug 1 at 22:38
Alan MarcusAlan Marcus
28.1k3 gold badges31 silver badges65 bronze badges
This is more useful with photo paper than film.
– Davidw
Aug 2 at 16:36
@Davidw Or sheet film, or (to a degree) medium format film. But not much useful for 35mm or small formats.
– gparyani
Aug 2 at 17:40
@Davidw -- Works for sheet film or 35mm or 16mm -- you just change the size to smaller objects.
– Alan Marcus
Aug 2 at 18:02
3
@gparyani 35mm needs only to be pulled from the closed cassette by a fixed amount after each time interval, process, and then count the stripes after drying the roll.
– Stan
Aug 2 at 20:47
@AlanMarcus Does one sit in the darkroom for 13 hours or can I get in and out somehow (or is this another question, kind of?) : ^ )
– Stan
Aug 4 at 12:58
|
show 6 more comments
In the darkroom, place a piece of the material you will be developing, flat, face up, on the work space. Place a handful of coins on this material. Using a timer, remove a coin every 5 minutes. 12 coins will cover 1 hour. At the end of the time span, develop the film or photo paper. A perfect darkroom will leave no evidence. An unsafe darkroom, reveals circular images of the coins. This test will tell you how long it safe to have work out.
answered Aug 1 at 22:38
Alan MarcusAlan Marcus
28.1k3 gold badges31 silver badges65 bronze badges
In the darkroom, place a piece of the material you will be developing, flat, face up, on the work space. Place a handful of coins on this material. Using a timer, remove a coin every 5 minutes. 12 coins will cover 1 hour. At the end of the time span, develop the film or photo paper. A perfect darkroom will leave no evidence. An unsafe darkroom, reveals circular images of the coins. This test will tell you how long it safe to have work out.
answered Aug 1 at 22:38
Alan MarcusAlan Marcus
28.1k3 gold badges31 silver badges65 bronze badges
answered Aug 1 at 22:38
Alan MarcusAlan Marcus
28.1k3 gold badges31 silver badges65 bronze badges
answered Aug 1 at 22:38
Alan MarcusAlan Marcus
28.1k3 gold badges31 silver badges65 bronze badges
answered Aug 1 at 22:38
Alan MarcusAlan Marcus
28.1k3 gold badges31 silver badges65 bronze badges
28.1k3 gold badges31 silver badges65 bronze badges
This is more useful with photo paper than film.
– Davidw
Aug 2 at 16:36
@Davidw Or sheet film, or (to a degree) medium format film. But not much useful for 35mm or small formats.
– gparyani
Aug 2 at 17:40
@Davidw -- Works for sheet film or 35mm or 16mm -- you just change the size to smaller objects.
– Alan Marcus
Aug 2 at 18:02
3
@gparyani 35mm needs only to be pulled from the closed cassette by a fixed amount after each time interval, process, and then count the stripes after drying the roll.
– Stan
Aug 2 at 20:47
@AlanMarcus Does one sit in the darkroom for 13 hours or can I get in and out somehow (or is this another question, kind of?) : ^ )
– Stan
Aug 4 at 12:58
|
show 6 more comments
This is more useful with photo paper than film.
– Davidw
Aug 2 at 16:36
@Davidw Or sheet film, or (to a degree) medium format film. But not much useful for 35mm or small formats.
– gparyani
Aug 2 at 17:40
@Davidw -- Works for sheet film or 35mm or 16mm -- you just change the size to smaller objects.
– Alan Marcus
Aug 2 at 18:02
3
@gparyani 35mm needs only to be pulled from the closed cassette by a fixed amount after each time interval, process, and then count the stripes after drying the roll.
– Stan
Aug 2 at 20:47
@AlanMarcus Does one sit in the darkroom for 13 hours or can I get in and out somehow (or is this another question, kind of?) : ^ )
– Stan
Aug 4 at 12:58
This is more useful with photo paper than film.
– Davidw
Aug 2 at 16:36
This is more useful with photo paper than film.
– Davidw
Aug 2 at 16:36
@Davidw Or sheet film, or (to a degree) medium format film. But not much useful for 35mm or small formats.
– gparyani
Aug 2 at 17:40
@Davidw Or sheet film, or (to a degree) medium format film. But not much useful for 35mm or small formats.
– gparyani
Aug 2 at 17:40
@Davidw -- Works for sheet film or 35mm or 16mm -- you just change the size to smaller objects.
– Alan Marcus
Aug 2 at 18:02
@Davidw -- Works for sheet film or 35mm or 16mm -- you just change the size to smaller objects.
– Alan Marcus
Aug 2 at 18:02
3
3
@gparyani 35mm needs only to be pulled from the closed cassette by a fixed amount after each time interval, process, and then count the stripes after drying the roll.
– Stan
Aug 2 at 20:47
@gparyani 35mm needs only to be pulled from the closed cassette by a fixed amount after each time interval, process, and then count the stripes after drying the roll.
– Stan
Aug 2 at 20:47
@AlanMarcus Does one sit in the darkroom for 13 hours or can I get in and out somehow (or is this another question, kind of?) : ^ )
– Stan
Aug 4 at 12:58
@AlanMarcus Does one sit in the darkroom for 13 hours or can I get in and out somehow (or is this another question, kind of?) : ^ )
– Stan
Aug 4 at 12:58
|
show 6 more comments
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2
"Noon question" - I am not trying to nitpick on the typo, but it's funny. Keeping no light in darkroom at noon is probably even harder. (sorry, I couldn't resist)
– Grzegorz Oledzki
Aug 4 at 19:53
I was thinking to edit it, but in a way makes sense :)
– Andy Andy
Aug 5 at 18:21