Search

pH³

– rants and facts – practical photography mostly

Category

Chemistry

Explicitly about chemistry in photographic development, processing and wet printing.

Beautiful video, #1 (more to come?)

https://vimeo.com/l2molecule

Advertisements

Ilford

http://www.vivianeli.com/blog/2015/04/ilford-harman-how-a-manufacturer-profits-in-a-declined-industry/

Caffenol, examples

http://www.flickr.com/groups/33051635@N00/discuss/72157635832651363/

 

C41, in a photo shop / lab

http://petapixel.com/2013/01/07/a-behind-the-scenes-look-at-how-35mm-film-is-developed-and-printed-at-a-lab/

 

A tip for how to calculate the required amounts to mix for a target temperature with the prerequisite that you have two water supplies of known temperature (or one container with a known temperature that you wish to change)

No changes required for either Excel or OpenOffice Calc

How it looks when done; cells with Tempertatures and Target amount are for numbers you need to adapt for YOUR calculation.

Mix waterbath from cold and warm supplies
T/ºC Amount Liter
Warm 45 11.700
Cold 25 6.300
Target 38 18

… and here it is with the formulas visible, copy the dark area, paste it in cell A1:

Mix waterbath from cold and warm supplies
T/ºC Amount Liter
Warm 45 =(C5*ABS(B5-B4))/(ABS(B5-B4)+ABS(B5-B3))
Cold 25 =(C5*ABS(B5-B3))/(ABS(B5-B4)+ABS(B5-B3))
Target 38 18

General info on E6 processing at home

http://www.flickr.com/groups/ishootfilm/discuss/72157633292737548/

 

C41 – divided development

http://www.flickr.com/groups/diy_color/discuss/72157631570823852/

ECN-2 process film, cine film

http://www.flickr.com/groups/ecn2/

Clio
Chelsea
http://www.flickr.com/photos/republic_film/8112874601/in/pool-444573@N25/lightbox/

http://www.twinlenslife.com/2010/02/films-future-is-far-brighter-than.html

http://www.apug.org/forums/forum216/37994-process-ecn-2-pictorial-use-3.html

http://www.fujifilm.eu/uk/products/motion-picture-film/

http://www.filmstockclearance.com/

http://motion.kodak.com/motion/Products/Product_Information/Ordering_Info/index.htm

http://www.film-center.com/dates.html  – date codes

Remjet backing removal:
http://www.flickr.com/photos/republic_film/7817133110/in/set-72157631272454528/

Now, if only silverprint would ship chemicals “overseas”… *sigh*

— http://www.silverprint.co.uk/ViewBasket.asp —

Stock# Description Value
87869 SODIUM SULPHITE 500g (anhydrous) £3.17
76526 POTASSIUM BROMIDE 100g £2.27
51167 SODIUM CARBONATE 500g (anhydrous) £3.49
5179 CD3 Colour Developing Agent 25g £3.75
23480 POTASSIUM FERRICYANIDE 500g £14.72
91 Delivery zone: Europe – zone 2 £20.00
Net Order Value £47.40
Total VAT £9.47
Total Order Value £56.87

Caffenol, a cookbook

http://www.flickr.com/groups/caffinol_private_palace/discuss/72157632106372790/

Blog at WordPress.com.

Up ↑