Search found 194 matches

by Digitaltruth
Wed Jul 11, 2007 8:58 am
Forum: The Digitaltruth Forum
Topic: arista film developer
Replies: 13
Views: 20659

Hi Gary, There are different washing techniques recommended by different manufacturers and experts, so you need to reach your own conclusion. In order to account for local variables, the techniques we publish for Silvergrain Clearfix Alkaline actually exceed the times required to eliminate the resid...
by Digitaltruth
Tue Jul 10, 2007 4:56 am
Forum: The Digitaltruth Forum
Topic: arista film developer
Replies: 13
Views: 20659

All modern rapid fixers are based on ammonium thiosulfate. Sodium thiosulfate was used in the past as the primary agent in fixers, but is much slower. Pretty much every major fixer currently available uses ammonium thiosulfate, but this has no relation to alkalinity or acidity. For more information ...
by Digitaltruth
Sun Jul 08, 2007 11:13 pm
Forum: The Digitaltruth Forum
Topic: arista film developer
Replies: 13
Views: 20659

Hi Gary, Perhaps Lowell will correct me, but I don't believe that AFC is an alkaline fixer. The other alkaline fixer we sell is TF-4, but this requires a water rinse before immersion in the stop bath. The buffering system used in Clearfix Alkaline is not duplicated in any other product, and there is...
by Digitaltruth
Sun May 27, 2007 5:52 pm
Forum: The Digitaltruth Forum
Topic: ultrafine 125iso film.
Replies: 1
Views: 5071

Although I don't know what the source is, I would treat it like Ilford FP4+. Its almost certainly rebranded.

For general guidelines on reciprocity see this page:
http://www.digitaltruth.com/techdata/reciprocity.php
by Digitaltruth
Sun May 20, 2007 6:54 pm
Forum: The Digitaltruth Forum
Topic: Xrays and efke Backing Paper Data
Replies: 2
Views: 6729

Hi Greg,

I will contact the distributor and manufacturer and will report back on this forum once I have further information.
by Digitaltruth
Thu May 10, 2007 4:13 am
Forum: The Digitaltruth Forum
Topic: Old formulae
Replies: 35
Views: 49013

Hi Greg, Almost all developers and most other photo chemicals can be shipped by air, and we ship Silvergrain chemistry worldwide. The main difficulty in air shipment is that it requires someone to physically take the package to the post office, whereas most mail order is done by UPS/FedEx and is col...
by Digitaltruth
Wed May 09, 2007 6:57 pm
Forum: The Digitaltruth Forum
Topic: Old formulae
Replies: 35
Views: 49013

Rodinal is classified as hazmat because it contains potassium hydroxide (or sodium hydroxide in the original version), which is caustic. The hazmat restriction only applies to certain quantities, which is why you can buy a single bottle (from anyone who knows the regulations) and have it ground ship...
by Digitaltruth
Tue Apr 03, 2007 11:50 am
Forum: The Digitaltruth Forum
Topic: Is there a digitaltruth-like site for color film?
Replies: 7
Views: 11276

Hi kcf, Please let me know the type of information you are looking for about color photography and I will try to add some relevant content. As Keith correctly says, the Digitaltruth Photo web site is not specifically aimed at any one aspect of photography, although most of the content is for traditi...
by Digitaltruth
Fri Mar 30, 2007 6:47 am
Forum: The Digitaltruth Forum
Topic: Prewash?
Replies: 14
Views: 29927

Efke film is made by Fotokemika in Croatia who own the brand. Their coating facility has been in operation for many years and I'm not aware of any major changes in equipment. The Efke films do have an older-style emulsion, but the film base is more modern so you should not need to treat the products...
by Digitaltruth
Fri Mar 30, 2007 5:31 am
Forum: The Digitaltruth Forum
Topic: Prewash?
Replies: 14
Views: 29927

First, let me say that I am not an expert in pre-washing, so hopefully someone else will enter this thread to provide more information. Prewashing is normally done to soften the emulsion so that when the developer is poured into the tank it is more readily and evenly absorbed. As such, it is a techn...
by Digitaltruth
Wed Mar 28, 2007 12:30 pm
Forum: The Digitaltruth Forum
Topic: How many 4x5 sheets will 2 quarts of developer develop?
Replies: 3
Views: 6629

If you look up the technical data sheet which the manufacturer normally publishes for a developer, you will find capacity listed per square meter or by negative size. In the case of D-76, Kodak publication j78 indicates a capacity of 16 8x10 sheets per gallon of stock solution without replenishment....
by Digitaltruth
Tue Mar 27, 2007 5:18 am
Forum: The Digitaltruth Forum
Topic: How do you go about making you own developer?
Replies: 5
Views: 9741

We sell raw chemicals for mixing your own developers here: http://www.digitaltruth.com/store/cart/Raw-Chemicals-p-1-c-215.html The list is quite long so you may find it easier to use the search box to find the exact ingredients you require. For formulas, you should be able to locate whatever you nee...
by Digitaltruth
Fri Mar 16, 2007 7:02 am
Forum: The Digitaltruth Forum
Topic: Efke IR820
Replies: 23
Views: 78790

We now have EFKE IR820 Infrared film available in both 35mm and 120 formats. Other formats, including sheet film and 127 will be available in the near future. You can purchase Efke IR820 here: http://www.digitaltruth.com/store/cart/Infrared-Film-p-1-c-223.html This film was previously sold under the...
by Digitaltruth
Wed Mar 14, 2007 7:47 am
Forum: The Digitaltruth Forum
Topic: Efke IR820
Replies: 23
Views: 78790

We will be adding the new Efke IR820 film to our store in the next few days, and full product details will be provided.
by Digitaltruth
Wed Mar 07, 2007 11:02 am
Forum: The Digitaltruth Forum
Topic: Tetenal Neopress HC Developer
Replies: 8
Views: 11725

Private messaging has now been enabled. From time to time we need to disable it for security reasons and it appears that it was left disabled during the last maintenance check.