Hello

New to this format. So there was a special film that's now no longer available?

Or is there special process to take generic 120 mm b/w to make slides?

Feel free to to point me to a FAQ.

Thanks

M

Photographers' Formulary, in Montana has this product.
http://www.photoformulary.com/.
I have not used it, but have heard that it works w/35mm film. It should
work w/other b&W films. I do know that Photographers' Formulary has
always been a reliable supplier.

FN

Description:



*REVERSAL PROCESS FOR T-MAX FILM* is the formula developed by Hans F.
Dietreich and appeared in the March/April 1988 issue of Darkroom
Techniques.

The T-MAX reversal process allows black and white slides to be made from
T-MAX 100 or 400 black and white negative film. The reversal process
will produce excellent positives from one to two stops higher with the
same development time; however negatives will be a thin positive. *The
kit makes five solutions (2 developers, bleach and a clearing bath).
This kit will develop 4 rolls of film. *

* *

Model Number:

01-0600

Unit Price:

28.7500 USD - Dollars



Weight:



1.5 lbs

Frank Norman wrote:

>
>
> Photographers' Formulary, in Montana has this product.
> http://www.photoformulary.com/. <http://www.photoformulary.com/.>
> I have not used it, but have heard that it works w/35mm film. It should
> work w/other b&W films. I do know that Photographers' Formulary has
> always been a reliable supplier.
>

And (surprisingly) B&H still has the TMAX direct positive kit made
by Kodak for sale (is Kodak still producing it???)

It is $42.50

I have one but haven't tried it yet - it states that the capacity is 12
rolls
(if you follow their procedures for increasing development time - there
is a table in the instructions). So I wanted to find a time when I was
able to use it to maximum capacity.

They also have notes about mixing partial batches - the first and
redeveloper "part A" solutions are most prone to oxidation, and
you should "squeeze as much air as possible" out of the concentrate
bottles. Filling the partially full bottles with argon or nitrogen should
work well.

Anyway, I can't yet comment on how well it works.

One nice thing about the Kodak kit is that it uses a chemical
fogging agent as opposed to the Deitrich kit in which you remove
the film from the developing tank and use light for that step.

Joel.

--


+--------------------------------------------------------------------+
| Joel K. Alpers
| Expressive Black and White Images
| http://www.jkalpers.com
+--------------------------------------------------------------------+

Note on the TMAX direct positive kit: I noticed after sending the
last email that the kit may only be purchased in their store, not
shipped, so you need to go to NYC or have a friend there who
could buy it for you and ship it.

Joel.

--


+--------------------------------------------------------------------+
| Joel K. Alpers
| Expressive Black and White Images
| http://www.jkalpers.com
+--------------------------------------------------------------------+

-- In MF3D-group@yahoogroups.com, Joel Alpers wrote:

> One nice thing about the Kodak kit is that it uses a chemical
> fogging agent as opposed to the Deitrich kit in which you remove
> the film from the developing tank and use light for that step.
>

dr5 uses a chemical fogging agent. The Scala machine uses light reversal a la Kodachrome which also used light reversal (three steps).
Steve

--- In MF3D-group@yahoogroups.com, "Mark" wrote:

>
> Hello
>
> New to this format. So there was a special film that's now no longer available?
>
> Or is there special process to take generic 120 mm b/w to make slides?
>
> Feel free to to point me to a FAQ.
>

Agfa's Scala was a B&W film that was marketed for B&W slides. Agfa had an earlier B&W slide product as well but I forget the name. Before that, Kodak's PanX was used for B&W slides. Currently, Fomapan R is the only film specifically marketed for B&W slides, but it's only available in 35mm and cine sizes. Non C41 B&W films can be reversed via dr5's process and also can be run in a Scala machine provided you know the correct ISO - which is going to be trial and error, which Dr. Wood (dr5) has done for you using his process. The only advantage to B&W films made specifically for slides is that they have a clear base which means smaller d-mins i.e. brighter whites.
Steve