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This is an experiment combining p-Aminophenol(ates) and Ascorbates (Vit C).
All the experiments are done on PolypanF.
The intention was to use less VitC than the usual formulae.
(reason : Rodinal/R09 1+100 only contains something like 0.6 g/L pAp developer, why use
several grams of VitC, with a high risk of fog and not so fine grain.)
(All the next amounts/weights are for a 250cc developer.)
I used 0.5 g VitC in combination with R09 1+100 1+200 1+250 and 1+500 -- I also used it in
combination with 4, 6 and 9 g instant coffee. (the pictures at the Ursel Castle are made
with the 9g.
I call these developers VitRo 100 .. 500 and VitCa 4,6 or 9.
It has to be noticed (visible with the Rodinal combination) there is no single trace of
oxidation (against the air - the reduction of silver salts works as normal, even stronger).
(Agfa claimed the darkening of the Rodinal during development is a result of the anti-halo
layer, this is only partly correct (simply because films without this layer also show this
result).
The VitRo developers contain :
3 g Soda (deca) .. Na2CO3.10H20 (= 106 + 10x18 g/mol - to calculate the mono etc..)
(this is needed to neutralize the H's from the Ascorbic acid, otherwise it will
take the OH's from the Rodinal/R09 and turn the developer ineffective).
0.5g VitC
2.5 - 2 - 1.25 - 1 cc R09
2.5cc of a 2.5% solution of Borax. (finer, rounder grain)
Example above is made with the VitRo 250.
Developing times : (PolypanF)
VitRo 100 12' 80iso
VitRo 200 20' 64iso
VirRo 250 25' 100-125iso (example above)
* VitRo 500 40' 64iso
(*) to be calculated : enough developer for the silversalts on the film ???
-----------------------
The VitCa is trickier, because the acidity of the coffee.
I start with 4g Soda (deca) and add 0.5 g / g instant coffee.
VitCa 60 = 7g Soda (deca)
VitCa 90 = 8.5 g Soda (deca)
After the water, the soda, the VitC (0.5g) I add 1cc 0.1% solution of KI (Potassium Iodide)
The VitCa 60 shows less contrast than the 90, perfect for portrait ...
Developing times between 50' and 60' push the PPF about 2x in the 90.
The 60 after one hour seems to reach 64iso (but I only tested with studio light, outside light
needs to be tested).
But should make excellent developers, with fine grain and great tonality and the ability
to push the film without burned-out highlights several stops.
Rob
Apa kabar semua?
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Highlights from the 2014 FileMaker Developer Conference Networking Dinner at the Knibbe Ranch in San Antonio, TX.
This photo was taken at insomnia58
Find out more about Multiplay, watch our videos and see all the latest news on the website, facebook and twitter.
Photo by Katy Eyre/iEventMedia.co.uk
While walking around Pacific Plaza, we met Mr. Leon Lam, a strata owner in the mall. He was suing the developers for misrepresenting the mall as a "1st class shopping centre" and claiming that it was to be a Commercial Retail Shopping Centre. In fact, it'd been zoned as a Wholesale Industrial Complex.
He was quite the fellow...Jessica, Vicki and Joyce are going to interview him further. Stay tuned...
As of today's posting, this photograph is sixteen months in the past. At that time, construction of "a visionary masterplan project set to transform Saint John's waterfront into a thriving epicenter of urban living" was just getting underway. I haven't been back to that location since, but this is a MAJOR development costing . . . what? A hundred million taxpayer dollars? But whatever-----it's only money!
In 'the old days' things used to happen more, shall we say, organically. But now, some 'developer' decides what the common people shall, or shall not have. I have mixed feelings about this sort of thing, to be honest. The Saint John of my childhood is gone, history, with so many key elements of the old city having disappeared. I'm sorry, but I just can't relate to these glitzy new developments that are anything but 'organic'.
I'm not opposed to progress, as such, but seventy-plus years of experience has taught me that, in too many instances, "progress" is not all it's made out to be. Building the new generally entails destroying the old.
That's especially true when you look behind the facade of glamour. The South End of Saint John is the oldest part of the city and, at least in terms of its housing stock, it's been in decline for a very long time (this accounts for the 'urban renewal' frenzy of the early 1960s, although those efforts were not directed at the South End). There are a lot of old houses in various stages of decay. And the waterfront? It used to be a dingy workplace, what with the Pugsley sheds and the Coast Guard buildings, along with the sugar refinery and other smaller industrial enterprises. That has all been swept away; everything now is geared toward cruise ship tourism and the pleasure of those with the means to afford brand-new residential buildings with a harbour view (I am not, rest assured, among their number-----it wouldn't surprise me if rents are four or five times what my wife and I are paying for our modest, though perfectly adequate and decent, apartment in Charlottetown).
So yeah, color me a bit skeptical. New and bright is probably better than old and dingy. That's logical, and I get it. Still, feelings don't necessarily have any connection with logic . . .
This photo was taken at insomnia58
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Photo by Katy Eyre/iEventMedia.co.uk
Mae Delta Digidol 2 yn gynllun hyfforddi rhan-amser dros 6 mis ar gyfer wyth o raglennwyr/datblygwyr er mwyn:
•Gwella sgiliau gwyddonwyr cyfrifiadurol amatur a proffesiynol gan eu hannog i ddatblygu eu gyrfaoedd ymhellach o fewn y diwydiant Cyfryngau Creadigol.
•Llenwi’r diffyg sgiliau enfawr o ddatblygwyr gwe a rhaglenwyr gêmau sydd ar hyn o bryd yn mynd i weithio y tu allan i Gymru. Ariannir y cynllun hwn gan S4C a TAC, a cefnogir gan Skillset Cymru â’r ATRiuM. / Digital Delta 2 is a six month part time training scheme for eight programmers/developers to -
•Enhance the skills of existing amateur and professional computer scientists and encourage them to further their careers within the Creative Media industry.
•Fill the substantial skills shortage of web developers and games programmers whom currently take up employment outside of Wales. This scheme is funded by S4C and TAC, and is supported by Skillset Cymru and the ATRiuM
Trondheim Developer Conference 2016
31 October 2016
@ Clarion Congress, Trondheim
Higher resolution version of this image available from kristina.brend@gmail.com
Photo credit: Wil Lee-Wright/trondheimfoto.no
This time I did ID-11 weaker diluted in Rodinal 1- something ;o). I think I like this combination. It leaves an even developed scan across the board. It is like split grade printing before I hit the darkroom. :o)
Kentmere 400 film in a Canon AE-1p with 135mm M-42 Mamiya/Sekor lens
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Could only find 1 with experimenter using Pyrocat HD on Kentmere film. Looks OK though without a lot of grain. Might need to lower the contrast with agitations.
1/3
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