Search found 178 matches

by Digitaltruth
Mon Apr 28, 2008 4:25 am
Forum: The Digitaltruth Forum
Topic: Agfa 25
Replies: 20
Views: 22001

Hi Bill, There is full information about APX 25 in the Massive Dev Chart, but it is listed in the Unlisted Data section. Although there are some discontinued films which are shown in the main chart, once a film has been out of general circulation for a few years, I routinely remove it and place it i...
by Digitaltruth
Fri Apr 18, 2008 9:33 am
Forum: The Digitaltruth Forum
Topic: Kentmere Chemistry.
Replies: 4
Views: 5684

No, that isn't going to be the case. The Kentmere chemicals are made specifically for the North American market, and are simply an alternative to the Kodak products where availability and cost might be an issue in different US States. Ilford has its own full line of processing chemistry which will c...
by Digitaltruth
Fri Apr 18, 2008 4:02 am
Forum: The Digitaltruth Forum
Topic: Kentmere Chemistry.
Replies: 4
Views: 5684

The results should be identical. The Kentmere chemicals are designed to replicate the Kodak products, so any differences would be academic.
by Digitaltruth
Wed Mar 19, 2008 8:39 am
Forum: The Digitaltruth Forum
Topic: Agfa 25
Replies: 20
Views: 22001

APX 25 has been out of production for some time now, and I've had several people asking about alternatives. While its true that modern medium speed films offer great quality, there are still some slow speed films worth looking at for their different characteristics. Here is a brief analysis which is...
by Digitaltruth
Thu Nov 15, 2007 6:36 am
Forum: The Digitaltruth Forum
Topic: sodium carbonate
Replies: 18
Views: 21468

1lb of Sodium Carbonate Monohydrate = 0.855 lbs of Sodium Carbonate Anhydrous.

If you convert the quantity based on this figure, the formula should work identically.
by Digitaltruth
Fri Nov 09, 2007 9:12 am
Forum: The Digitaltruth Forum
Topic: Rollei Infrared 5 minute Presoak
Replies: 19
Views: 20732

Robert, I feel it is necessary to defend the reputation of this film because you have been suggesting that there is something wrong with it. In fact, you continue to suggest this by saying that you doubt you are the only one who has had or will have a problem. Unfortunately, this is a common problem...
by Digitaltruth
Fri Nov 09, 2007 4:33 am
Forum: The Digitaltruth Forum
Topic: Rollei Infrared 5 minute Presoak
Replies: 19
Views: 20732

I'd like to clarify this thread so that people understand that there is no problem with the film. It now seems as if the issue is related to sharpening in your scanner. I just want to assure all other users of the product that no similar scanning problems have been reported, and we have had many peo...
by Digitaltruth
Wed Nov 07, 2007 9:42 am
Forum: The Digitaltruth Forum
Topic: Rollei Infrared 5 minute Presoak
Replies: 19
Views: 20732

I have personally developed many rolls of film from the identical batch to the one we sell on the web site and there is no hint of a problem. Additionally, many other users have been supplied with film from this batch - we are talking about thousands of people - and no one has reported a problem. Of...
by Digitaltruth
Wed Nov 07, 2007 4:41 am
Forum: The Digitaltruth Forum
Topic: Rollei Infrared 5 minute Presoak
Replies: 19
Views: 20732

OK, now I understand. However, even if you are digitally removing the particles, what I have said previously about the particles still stands. I've not heard other reports of any problem, so the likelihood is that the problem is being introduced during processing and the particles are drying into th...
by Digitaltruth
Tue Nov 06, 2007 11:27 am
Forum: The Digitaltruth Forum
Topic: Rollei Infrared 5 minute Presoak
Replies: 19
Views: 20732

Robert, I understand what you are saying, however it is not possible that these are part of the emulsion. If you are able to clean the particles off, then how can they be part of the emulsion? If these particles were part of the emulsion, then when you clean them off you would see holes in the emuls...
by Digitaltruth
Tue Nov 06, 2007 10:44 am
Forum: The Digitaltruth Forum
Topic: Rollei Infrared 5 minute Presoak
Replies: 19
Views: 20732

Hi Robert, The fact that these are particles which you are cleaning from the film indicates that they are coming from an external source. If this was a problem with the emulsion, we would already know about, and no one has ever reported such an issue. Additionally, the manufacturing and quality cont...
by Digitaltruth
Tue Nov 06, 2007 6:13 am
Forum: The Digitaltruth Forum
Topic: Rollei Infrared 5 minute Presoak
Replies: 19
Views: 20732

Hi Robert, If the substance that is adhering to your films resembles black dirt, then it must be being introduced during processing. I'm not sure that the presoak will have any affect whatsoever in this regard. Can you actually see physical particles and wash them off the film? If this is the case, ...
by Digitaltruth
Thu Oct 04, 2007 11:29 am
Forum: The Digitaltruth Forum
Topic: Rollei IR Film
Replies: 3
Views: 5299

Maco IR820c Precision Infrared is now sold as Ekfe IR820. The "Aura" version of Maco IR820c is no longer available. Rollei IR400 Infrared is a completely different film and has much finer grain. It can also work as a standard 400 ISO film with grain and tonality rivaling Tri-X. Both films are capabl...
by Digitaltruth
Tue Sep 11, 2007 5:58 pm
Forum: The Digitaltruth Forum
Topic: Agfa Films and Developers Back?
Replies: 2
Views: 4434

When AgfaPhoto ceased manufacturing in 2005, the chemical production was taken over by A&O in Germany and provides identical products under the Agfa label, allowing for continuous supply. The fact that many dealers in North America stopped importing these products is nothing to due with supply, as t...
by Digitaltruth
Wed Jul 11, 2007 8:58 am
Forum: The Digitaltruth Forum
Topic: arista film developer
Replies: 13
Views: 13683

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...