[pure-silver] Re: First glance: CineStill BwXX (Eastman 5222) and Df96 monobath develop/fix
- From: Dana Myers <dana.myers@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Mon, 11 May 2020 10:24:19 -0700
On 5/10/2020 7:00 PM, `Richard Knoppow wrote:
This is really very good looking. Congratulations on trying the monobath. You may want to find copies of Grant Haist's book on
monobath processing and his general text "Modern Photographic Processing". (by memory, I may not have that exactly right).
Many thanks - honestly, I was a bit surprised at the results. I mean, reading
the
description just sounds too good to be true. But, the negs look great - if I was
printing on #2 paper, they might be just right, but I prefer a little lower
contrast
for the scanner.
You know that monobaths must be concocted for the particular film. It is mostly experimental. Haist claims superior quality
for it.
I've not read Haist's book on this topic. D-96 is the Kodak-recommended
developer
for Eastman 5222; I assume that CineStill's Df96 is concocted specifically for
this
film, and it certainly looks great. CineStill does suggest other films in the
soup,
with the note about 2x processing time for Delta/T-Max fixing, but I haven't
tried
this yet. I'm fond of TMY in Xtol 1+1, I dunno if I want a new girlfriend :-)
I am not familiar with Eastman 5222 but in the past used the motion picture version of Plus-X, which I liked very much. If
the IE 250 is Eastman's speed you should be aware that B&W cine film is measured by a somewhat different method than is used for
still film. I have the still film ISO standard but not the motion picture film standard. However, I think the speed is slower
than would be given by the still film ISO speed to insure good shadow detail.
I habitually set my camera 1/3-stop slower than box speed (negative film) but
this time
I thought, oh, try the suggested EI. So I metered it at EI 250 and shadows
pretty good,
though I didn't attempt any densitometry.
Datasheet:
https://www.kodak.com/Kodak/uploadedFiles/Motion/Products/Camera_Films/5222/Resources/5222_ti0299.pdf
I can't advise about agitation for monobath but I've found with sheet film in either Nikor tanks or in rotary processors the
developer makes a big difference. For the Nikor tank I used 10 second every minute since I found 5 seconds every 30 second
produced surge marks. For the drum processor on sheet film I found the continuous agitation of the print roller caused problems
with bromide steaks when using Rodinal. It seems to me it did not with D-76. Depends on the sensitivity of the developer to
bromide. Something else may be happening with the monobath.
CineStill's FAQ addresses this:
Q: What's the difference between "Bromide Drag" and "Surge Marks"?
A: Bromide drag lines are a byproduct of development with no agitation. High concentrations of bromide is produced around the
perforations and overexposed areas. Without agitation it slowly slides down the surface of the film, inhibiting development and
creating drag lines. Surge marks look similar but are cause from the opposite, over-aggressive agitation. Surge marks will appear
as lines going the same direction as your agitation. Bromide drag will appear as vertical lines because they are caused by gravity.
https://cinestillfilm.com/pages/frequently-asked-questions#q28
What I saw was clearly bromide drag from the sprockets; just one side, and got
wider as they
went on. Hence, I'm going to agitate half as much, twice as often.
If you took outdoor pix I would love to see them. What you posted has wonderful tone rendition and appears to be very sharp.
Haist talks about monobaths given very sharp results but not exaggerated edge effects.
Snapshot taken in overcast from my car window:
https://drive.google.com/open?id=1pbqwPVaJjFmDxzyszoCIUG3A0DdJ_YI0
This is a completely forgettable snapshot from my front porch in contrasty
mid-morning
light:
https://drive.google.com/open?id=14MkiAQqb4dWPdmGy3zb-_IXiNbrzeOJq
Other than auto-exposure in the scanner, I did no adjustment. I'd like a little
lower contrast in the scanner but this would probably print pretty easily on #2.
Monobath is a very ignored process, thank you for giving it a practical trial.
Honestly, I poured the soup into the tank thinking "here goes nothing".
73,
Dana K6JQ
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