How long will a plate last after…

[ThePhotoChemist]

Hey everyone! I’ve got a few questions about sensitized plates.

Once a plate has been fumed and before exposure, how long can it last before it starts to lose speed?

How long will the post-exposure latent image survive?

John Hurlock in his “Hypersensitization” article that he expected image fading after 90 minutes on a hot, humid summer afternoon. What about a cool Fall day, or cold Winter day?

Are there difference in behaviors with bromine/iodine plates vs. only iodine?

[dragos]

I double the question about the time between sensitizing and exposure.
The same about the time between exposure and developing.
…not with too much hope, anyway, your question is 10 weeks old and none of the professionals had time to answer.
Probably is such an obvious thing that is not worth the answer.

Anyway, if you happen to pass by here or get notified of my answer, and already found out the answer to your question, please let me know too.

And when you ask about the differences between the bromine/iodine plates vs. only iodine, do you mean in terms of losing speed time and delay developing, or just appearance?

[dragos]

All the answers here:

Sensitised Plates – How well do they keep?

…and here:

Click to access frozen-in-time.pdf

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