The first shot on this roll of HP5+. A roll that I’m pretty sure I’ve overdeveloped. From the point of hanging the negatives to dry I had a feeling something was amiss as they looked noticably denser than I might have expected. Once scanned it became apparent that the highlights were much brighter than they should have been and there was more grain than expected along with the loss of some fine detail.
The reson for this, I believe, was my developing the roll on a hot day where controlling the temperature of the developer was difficult. By the time I was ready to start the process, it had risen from 20 degrees to 22.5, so I had to consult the Ilford compensation charts to see how that would affect the time. While the charts are very helpful, they only show compensations for whole degrees, so I made a best guess to put my time somewhere between those quoted for 22 and 23 degrees. I think I should probably have shaved another 15-20 seconds from the time.
I’ve managed to save pretty much every frame with some post-processing tweaks in Lightroom, but they’re not what I’d planned. Still, everything’s a learning experience, eh?
Canon Sure Shot Supreme & Ilford HP5+. Ilfotec DD-X 1+4 7 mins 45 secs @ 22.5°.
Taken on 23 July 2020


I use the time & temperature conversion feature on the massive dev chart (https://www.digitaltruth.com/devchart.php/forum/devchart.php?doc=timetemp) which allows fractions of degrees. At this time of year I find that water comes out the cold tap pretty close to 20c.
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Thanks Kevin. The MDC app I use has the same useful feature. Unfortunately I’ve only just figured that out today. 🙂
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