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Response to Grainy film - What am I doing wrong?

from John Hicks (jbh@magicnet.net)
> 1. compensation can take place with reduced agitation and is inhibited by excessive agitation. > 2. edge effects are also inhitibited by agitation.

I agree with those two comments.

Actually I don't see any way any significant level of "real" compensating development could be achieved with continuous agitation. While it's possible to generally duplicate the curve shape, that's not the same although in practice it may not make any difference.

I think it's probably possible to get more edge/adjacency effects when using continuous agitation than expected although I believe those effects would surely be inhibited. It's my understanding that most edge/adjacency effects happen _within_ the emulsion via diffusion so wouldn't be entirely absent.

Henry had quite a bit to say about acutance and edge effects but I've forgotten exactly what he found regarding freqency of agitation in that respect.

(posted 8537 days ago)

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