A short description of how to develop B/W slides with the ADOX SCALA B&W Reversal Kit and the CHS 100 II film
This is the Voigtländer Bessa with a Compur shutter and Anastigmat Skopar f/4.5 lens. The production year is likely 1935.
This gorgeous slide was taken in a CHS 100 II film produced by ADOX. This is a orthopanchromatically sensitized B/W film optimized for greyscale separation. It has a very large exposure latitude. A great feature of this film is that it can be reversal processed to produce amazing slides.
I used the 4×5 sheets in this case. Finding the development times was the crucial part of the process. I started with the times provided for the Scala 50 film and the results were not good. The final image was not neat and the grain too coarse. I decided to contact the ADOX people and was lucky that Lina Bessonova answered my request. She provided the right times and instructions that I translated to my Lab Timer (app).
Photo Technical Details
- Camara Chamonix CH45-F2
- Lens Schneider Kreuznach APO-SYMMAR 210 mm
- Film: CHS100II 100
- Lightmeter Pentax digital spotmeter
- Exposure time 10′ 29″ @ f/22
- Developed in a Jobo tank 2520+2509
- Development N with Scala Kit
- Scanned with Epson v850 pro
Development procedure for 4×5 film
The development is made in three processing steps:
- Phase I: 1st Developer, bleach, clear
- Phase II: 2nd developer, fixer, final wash
These times were used for a normal development (N). For N+1 or N+2, an increase of 10% may be tested according to the suggestion from Johnson. I have not tested the extended development yet. The times used for creating this particular slide are provided on Fig. 1. In this Figure, the first substep should be called tempering bad but the App I use, on its current version, does not allow to change the headings. The idea is to put the development tank in a 20 °C bad to equilibrate the temperature. This is important since I am using a Jobo 2520 rotary processor.
In the second step, the slides are extracted from the tank and exposed for 2 min on each side. Fig. 2 shows the exposure in a cristal contained and submerged in water.
Finally, the slides return to the tank and the Phase II starts. The used times are provided in Fig. 3. At the end the slides are washed with a regular wetting agent (Fig 4.)
Fig. 1 Times for Phase I
Fig. 2 Re-exposure
Fig. 3 Times for Phase II
Fig. 4 Final wash
This Post Has 8 Comments
It’s really a nice and useful piece of info.
I’m glad that you just shared this useful information with us.
Please stay us informed like this. Thank you
Wonderful blog! Do you have any tips for aspiring writers?
I’m planning to start my own blog soon but I’m a little lost
on everything. Would you suggest starting with a free platform like WordPress or go for a paid option? There are so many choices out
there that I’m totally overwhelmed .. Any recommendations?
Thanks a lot!
Thanks for your nice words. I was in the same situation last year. Take it easy. In my case, I went for the simplest option, I used an open-source template and modified to fit my aesthetical goal. I only select open-source apps and fonts. WordPress ended up to be the best option for me. I know some programming languages but I am beginner in web-related languages. Hence it has to be easy. WP makes it really easy. Afterwards, I searched for a provider with the most price efficient Webhosting-Package that fit my needs and take care of hosting mine domain. In The EU, the domain .eu is free. Thus I went for it. Good luck!
Good info. Lucky me I ran across your website by accident (stumbleupon).
I have book-marked it for later!
I know this web page provides quality based articles and other stuff, is
there any other site which provides these things in quality?
I don’t even know the way I stopped up here, however I believed this post used to be great.
I do not realize who you might be however definitely you’re
going to a well-known blogger when you aren’t already.
Thanks for finally talking about > B/W Slides
– Instants < Liked it!
Truly no matter if someone doesn’t know then its up to other viewers that they will assist, so here it happens.