removedacct2
Member
- Joined
- May 26, 2018
- Messages
- 366
I went to test a Jupiter-12 I suspect to be seriously off focus probably a previous bad servicing, against a correct industar-61. Took a colour film (Lomography-400).
I took 17 photos.
Drive back home and instead of grabbing a 1 liter bottle of dev, I took a 40/50 cl of a developer I got last summer from a guy I bought couple old developing tanks from. He tried home development but lacked time and interested, so he gave me along the small kit he had used, split in two half liter bottles. One was used, brownish and with precipitates, the other almost fresh used once.
Had never used it because I had always been developing at least two rolls at once, so needed more that 0,5l dev. But now with these 17 frames I could use a compact tank with 0,3/0,4 l.
I buy C41 chemicals from Germany, the 3 baths kits (dev/bleach/fixer) of Fuji X-Press or Compard.
The chemicals I got from the guy were bought he told me on Ebay from Israel and are an unknown brand to me: Unicolor. This, the half liter was in plastic bottle, squeezed to keep air out:
anyway, a C41 developer is a C41 developer, right?
so there i went with my usual routine, but I got very psychedelic results:
overview of the whole strip:
crazy
1st frame:
2nd frame:
3rd frame:
the 10th:
the 14th better but still these dark points:
so I was scratching my head. Never seen this. Only fails I have ever experienced were colour shifts when trying to squeeze yet another roll out of overused chemicals, ie. exhaustion.
here, to the left a bottle of Fuji X-Press used 17 times, to the right the Unicolor I just used, and it looks fresh and without precipitates:
the Fuji X-press is still strong, so what was the problem with the Unicolor ?
and no, the bleach and fixer are ok, so it was the developer ... or the development.
that's when I had a look at the Unicolor instructions sheet, and it says.
- 10 sec initial agitation
- 4 inversions every 30 s
but with Fuji x-Press it's:
- 30 s continuous first
- 2 inversions every 13s.
so in order to check that, I shoot few frame of the same film, and developed with the Unicolor as per its agitation instructions. Bingo:
so, no, all C-41 developers aren't equal...
I took 17 photos.
Drive back home and instead of grabbing a 1 liter bottle of dev, I took a 40/50 cl of a developer I got last summer from a guy I bought couple old developing tanks from. He tried home development but lacked time and interested, so he gave me along the small kit he had used, split in two half liter bottles. One was used, brownish and with precipitates, the other almost fresh used once.
Had never used it because I had always been developing at least two rolls at once, so needed more that 0,5l dev. But now with these 17 frames I could use a compact tank with 0,3/0,4 l.
I buy C41 chemicals from Germany, the 3 baths kits (dev/bleach/fixer) of Fuji X-Press or Compard.
The chemicals I got from the guy were bought he told me on Ebay from Israel and are an unknown brand to me: Unicolor. This, the half liter was in plastic bottle, squeezed to keep air out:
anyway, a C41 developer is a C41 developer, right?
so there i went with my usual routine, but I got very psychedelic results:
overview of the whole strip:
crazy
1st frame:
2nd frame:
3rd frame:
the 10th:
the 14th better but still these dark points:
so I was scratching my head. Never seen this. Only fails I have ever experienced were colour shifts when trying to squeeze yet another roll out of overused chemicals, ie. exhaustion.
here, to the left a bottle of Fuji X-Press used 17 times, to the right the Unicolor I just used, and it looks fresh and without precipitates:
the Fuji X-press is still strong, so what was the problem with the Unicolor ?
and no, the bleach and fixer are ok, so it was the developer ... or the development.
that's when I had a look at the Unicolor instructions sheet, and it says.
- 10 sec initial agitation
- 4 inversions every 30 s
but with Fuji x-Press it's:
- 30 s continuous first
- 2 inversions every 13s.
so in order to check that, I shoot few frame of the same film, and developed with the Unicolor as per its agitation instructions. Bingo:
so, no, all C-41 developers aren't equal...