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The developer for the legendary Kodak Technical Pan film. I found this packet (or rather, a whole box of them) about to be thrown away at a camera store.
Alex Peters from Firemint with (from left) Tracy Erickson (Pocket Gamer iPhone editor), Tommy Palm from The Game Trail, and Chris James (PG MD)
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
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Sohobiztube.com and SWAY, Inc. Present
DIY Social Media Workshop – Managing Your Brand and Listening To Your Brand Chatters
With Keynote: Rish Shah, of Flyingcart.com
July 6, 2009, Milwaukee, Wisconsin. Social media developers and strategists, Sohobiztube.com and SWAY, Inc., have combined their talents and resources to present a one day workshop where attendees will walk away with a “working marketing and social media plan” to continue developing with their marketing departments or consultants,” says Cd Vann, owner and developer of Sohobiztube.com
The workshop takes place July 22, 2009, Madison, Wisconsin, 8AM – 5PM at the Holiday Inn & Suites of Madison, followed by a Madison Tweetup. The cost is $85.00 per person and discounts on groups of five or more are honored. You can RSVP at www.sohobiztube.com
The one day workshop features social media practitioners who can present real and successful client examples and techniques on how to manage your brand and select the right tools and channels based on your target audience, product, service and positioning statement. Attendees will walk away with the answer to one of their most important questions, “How does this apply to me and my industry?”
Keynote: Rishi Shah, CEO of FlyingCart.com. Rishi’s ability to market his web application without investors or large advertising budgets made him one of Business Week’s Top 25 Entrepreneurs 25 and Under.
Presenters include: Cindi Thomas - Fullhouse Media, Scott Baitinger - Mader Communications, Steve Glynn - Spreenkler and Barb Rozgonyi of Cory West Media.
Workshop topics include, Social Media Tools and Strategies, Monitoring, Social Media Marketing, Blogging, SEO and SEM and more.
Sohobiztube.com and SWAY, Inc., have selected some of the brightest and most influential practitioners in the social media industry, presenting topics that will guide you through the process of developing an understanding of why companies no longer “own their brand,” but are now managing their brand and listening to their brand chatters.
Sohobiztube.com currently has six Social Media Workshops planned for Chicago, Appleton and Des Moines all focused on providing growing businesses with the tools, channels and strategies they need to manage their on line brand and engage with their audience.
Photograph from Great Indian Developer Summit 2010 held in Bangalore, India, 20-23 April 2010, produced by Saltmarch Media. Photograph ©Copyright Saltmarch Media. Non-commercial use permitted with attribution and linkback to this page on Saltmarch's Flickr photostream. All other rights reserved.