Stop solution

[Asha]

Just developed some Adox CHS 25 Art sheet film

Used and developed this film before with no problem using a weak 1/29 solution of both developer and fixer.

This time however the stop I used was mixed to a stronger 1/19 solution (I had it already made up and forgot it was a stronger mix!).

I am wondering if this could have caused the over exposure (approx 1 full stop) of the negatives.

 

[s162216]

If I remember, Adox say on their site not to use an acid stop bath with CHS 25 but to just use running water supposedly because the emulsion is so delicate.

 

[Asha]

I use so many diferent films I actually struggle to recall what i have read up on them myself so perhaps you are right although without doubt I have used a weak stop bath with this film before with no problem.
This is the first time I've experienced this issue and would like to know for sure if using too stong a mix would have an overexposed effect on the emulsion.

 

[Asha]

I have just read the Adox website which states:

"Stop with water only (do not use strong stopbath) "

By the look of things I have been fortuantate on previous occasions using a week 1/29 stopbath.

I actually wasn't aware that too stong a stop bath could cause an issue like this.

We live and learn!

 

[robhooley167]

i used a 1+19 stop bath with my adox 25 and had no problems with it at all, i only stop for about 30 seconds so it may depend on how long you stop for?