Darken region across the roll

[giannis]

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Yeah could be. 500ml maybe can barely just cover 2 rolls with the plastic reels. But to be safe, it's always better to use 580mm, or 600ml, after all developer is really cheap compared to film.

[fatihayoglu]

13 hours ago, giannis said:

Yeah could be. 500ml maybe can barely just cover 2 rolls with the plastic reels. But to be safe, it's always better to use 580mm, or 600ml, after all developer is really cheap compared to film.

Yep, I learnt my lesson. I recalculated my chemicals chart with 600 now. My only gripe is, ratios for 600 are really difficult to measure, 500ml was better, but I guess 1ml of chemical here and there won’t make much difference

[Pyrogallol]

A splash more water in the tank won’t make any real difference to the development. If you top up the tank until you can see the level come over the plastic inner light trap of the tank lid then you know it must be covering both spirals.

The only time I made a mistake was when I only put 300ml of developer in when developing a 120 film, which I had not done for a while and automatically used 300ml.

i imagine stainless steel reels have less volume/liquid displacement than plastic ones so the liquid level in the tank will be lower?

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Edited May 24, 2020 by Pyrogallol

[fatihayoglu]

Yep, definitely stainless steel reels have less volume, that was something I’ve counted