Pull processing Adox CHS

Asha

Asha

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Asha
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Bit of advice needed please:

Just shot some Adox CHS 100 sheet film only to realise that I have mis calculated and overexposed by one full stop.

Fortuanatly I haven't yet developed the film so hoping to save the shots by pulling back on the developing time......I process in LC29 , 11 mins @ 20c for correctly exposed shots.

What do you guys suggest I reduce this time by to compensate for the overexposure?? .....I was thinking about one 1 minute! ??
 
Its ONLY 1 stop so I would do as you suggest knock a minute off the dev time for your first sheet, then adjust from there, you may need to lose another minute, you may get away without. at least you can try on one sheet at a time and 1 stop isn't that over exposed, the neg should be printable still.
 
puggie said:
Its ONLY 1 stop so I would do as you suggest knock a minute off the dev time for your first sheet, then adjust from there, you may need to lose another minute, you may get away without. at least you can try on one sheet at a time and 1 stop isn't that over exposed, the neg should be printable still.
Click to expand...

Ok thanks for that .....They are all long exposures ....I was so concentrated on calculating the recipricol failure and ensuring that I had incorporated it into the exposure time that i forgot to realise I was using 100 iso film and not 50 !!!! Duhhh !! lol
 
According to the darkroom handbook (the film shooters bible), it says to decrease the developing time by 30% for a 1 stop adjustment, although if you are scanning the negatives in, you might as well tweak them in lightroom or photoshop :)
 
Thank you both for your help........I was tempted to go for the 30% reduction but my gut feeling told me that 7.5 mins as against 11 would be too much so I took an educated guess going on the info from you both and my own experience with developing and reduced the time to 9.5 mins in a 1:29 soup. There are a couple of tiny blown highlights but the primary subject is exposed spot on with superb contrasts. Overall a near perfect result!
 
I should have added that the 30% reduction is for developers like ID-11 and D-76, i have no experience of LC29

Its the end result which matters and im glad to have been some assistance :)
 
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