Efke vs. TP film

Hi all, I'm using Efke ISO 25 film with good results. I develop it in
Rodinal 1+100 for 18 mins, a treatment I've used also for Kodak TP
film. My question is about this. Do you think the two films are a bit
similar? My goal is to understand if I can develop Efke film using the
unusual developer made specifically for TP, i.e. POTA, Delagi #8, etc.

What do you think about this? Well, I can try and see what happens, but
a rational answer before a blind try is always better.

Thanks all

P.

On 22 Jan 2006 00:32:45 -0800, wrote:

Hi all, I'm using Efke ISO 25 film with good results. I develop it in
Rodinal 1+100 for 18 mins, a treatment I've used also for Kodak TP
film. My question is about this. Do you think the two films are a bit
similar? My goal is to understand if I can develop Efke film using the
unusual developer made specifically for TP, i.e. POTA, Delagi #8, etc.

What do you think about this? Well, I can try and see what happens, but
a rational answer before a blind try is always better.

I think it's would probably develop a significant base fog level prior
to developing adequate separation. Remember that POTA was designed for
use with the photographic recording of atomic tests. It will compress
higlights significantly. This was perfect for use with Tech Pan but I
doubt if it's real useful with regular film. Of course you can give it
a try !

==
John - Photographer & Webmaster
www.puresilver.org - www.xs750.net

Technical Pan required a specially formulated developer to control it`s high
contrast for pictorial photography. Kodak`s description of the films uses
are for specific applications like Photomicrography, Micrography
(Microfilming), Solar Photography, photographing electrophoretic gels and
laser recordings.. Efke 25 is a slow regular film and should perform well in
a wide range of general use film developers.

wrote in message
ups.com...
Hi all, I'm using Efke ISO 25 film with good results. I develop it in
Rodinal 1+100 for 18 mins, a treatment I've used also for Kodak TP
film. My question is about this. Do you think the two films are a bit
similar? My goal is to understand if I can develop Efke film using the
unusual developer made specifically for TP, i.e. POTA, Delagi #8, etc.

What do you think about this? Well, I can try and see what happens, but
a rational answer before a blind try is always better.

Thanks all

P.

Technical Pan required a specially formulated developer to control it`s high
contrast for pictorial photography. Kodak`s description of the films uses
are for specific applications like Photomicrography, Micrography
(Microfilming), Solar Photography, photographing electrophoretic gels and
laser recordings.. Efke 25 is a slow regular film and should perform well in
a wide range of general use film developers.

wrote in message
ups.com...
Hi all, I'm using Efke ISO 25 film with good results. I develop it in
Rodinal 1+100 for 18 mins, a treatment I've used also for Kodak TP
film. My question is about this. Do you think the two films are a bit
similar? My goal is to understand if I can develop Efke film using the
unusual developer made specifically for TP, i.e. POTA, Delagi #8, etc.

What do you think about this? Well, I can try and see what happens, but
a rational answer before a blind try is always better.

Thanks all

P.

wrote:
Hi all, I'm using Efke ISO 25 film with good results. I develop it in
Rodinal 1+100 for 18 mins, a treatment I've used also for Kodak TP
film. My question is about this. Do you think the two films are a bit
similar? My goal is to understand if I can develop Efke film using the
unusual developer made specifically for TP, i.e. POTA, Delagi #8, etc.

First of all, they are very different films. TP was a microfilm with
a very tough base and extended red sensitivy. Adox KB-14, as the film
was originaly called, was an early deign for 35mm users. It had a very
thin base and was orthopanchromatic. This meant that it had some red
sensitivty, but not as much as with a panchromatic film.

Think of a panchromatic film with a light green filter and you have it.

It was also designed in the days that slow speed was needed for fine grain.

As for developing it, I never used Rodinal, but had excelent results
with Edwal FG-7.

I'd love to get my hands on the combination again, but due to the lack
of distribution of both here in Israel, it's not very likey. :-(

Geoff.

--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
IL Voice: (07)-7424-1667 IL Fax: 972-2-648-1443 U.S. Voice: 1-215-821-1838
The trouble with being a futurist is that when people get around to believing
you, it's too late. We lost. Google 2,000,000:Hams 0.

On Sun, 22 Jan 2006 11:00:05 +0000 (UTC), (Geoffrey
S. Mendelson) wrote:

I'd love to get my hands on the combination again, but due to the lack
of distribution of both here in Israel, it's not very likey. :-(

Geoff.

You can't order it from Fotoimpex ? http://www.fotoimpex.com/

==
John - Photographer & Webmaster
www.puresilver.org - www.xs750.net

I wrote:

I'd love to get my hands on the combination again, but due to the lack
of distribution of both here in Israel, it's not very likey. :-(

John wrote:
You can't order it from Fotoimpex ? http://www.fotoimpex.com/

Thanks for the suggestion.

I can order the film from them, but there is a big chance that if I send it
airmail or have a tourist bring it in as a gift, it will be X-rayed into
oblivion.

Israeli customs has a rule that one or two is for personal use, three or
more is for resale. I don't know how this applies to film, but I expect
they would not believe that I would want 20 rolls of film for myself.

FG-7 has to be shipped via boat as it is now classified as a "hazardous
substance". The company the bought the rights to it from Falcon did not
change the formula, but the classification changed post 9/11.

Geoff.

--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
IL Voice: (07)-7424-1667 IL Fax: 972-2-648-1443 U.S. Voice: 1-215-821-1838
The trouble with being a futurist is that when people get around to believing
you, it's too late. We lost. Google 2,000,000:Hams 0.

On Sun, 22 Jan 2006 20:00:06 +0000 (UTC), (Geoffrey
S. Mendelson) wrote:

I can order the film from them, but there is a big chance that if I send it
airmail or have a tourist bring it in as a gift, it will be X-rayed into
oblivion.

Israeli customs has a rule that one or two is for personal use, three or
more is for resale. I don't know how this applies to film, but I expect
they would not believe that I would want 20 rolls of film for myself.

I can imagine that the "peronal/resale" rule of thumb might influence
whether or not they let it through without charging you import duties,
but surely that shouldn't determine whether they x-ray it or not?

Andrew Price wrote:

I can imagine that the "peronal/resale" rule of thumb might influence
whether or not they let it through without charging you import duties,
but surely that shouldn't determine whether they x-ray it or not?

I expect that all packages, especialy ones marked "photographic film,
do not x-ray" would be x-rayed before being loaded on an airplane.

If it were going to a known customer who was a photographic importer,
they might not.

As for customs, they would never believe that anyone would spend $25 or
even $10 to ship $25 worth of film.

They would assume that it was a scam either to not pay VAT on the full
price, of that $1,000 digital camera in the box. If they thought kindly
of me, they would flag it for me to come to the customs office and
open it up in front of me.

If they had a bad night, or did not want to bother, they would just X-ray it.

Geoff.

--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
IL Voice: (07)-7424-1667 IL Fax: 972-2-648-1443 U.S. Voice: 1-215-821-1838
The trouble with being a futurist is that when people get around to believing
you, it's too late. We lost. Google 2,000,000:Hams 0.

On Sun, 22 Jan 2006 20:00:06 +0000 (UTC), (Geoffrey
S. Mendelson) wrote:

I'd love to get my hands on the combination again, but due to the lack
of distribution of both here in Israel, it's not very likey. :-(

John wrote:
You can't order it from Fotoimpex ? http://www.fotoimpex.com/

Thanks for the suggestion.

I can order the film from them, but there is a big chance that if I send it
airmail or have a tourist bring it in as a gift, it will be X-rayed into
oblivion.

Something as slow as EI 25 isn't going to be very sensitive to X-Rays.
Generally this is only an issue wih high speed films. Photo-Techiques
did a article on this about 5~6 years ago where they loaded a bunch of
half exposed rolls of film into a duffle bag and then sent it through
through the X-ray machines at Heathrow and JFK several times with
almost no perceptable effect.

Israeli customs has a rule that one or two is for personal use, three or
more is for resale. I don't know how this applies to film, but I expect
they would not believe that I would want 20 rolls of film for myself.

FG-7 has to be shipped via boat as it is now classified as a "hazardous
substance". The company the bought the rights to it from Falcon did not
change the formula, but the classification changed post 9/11.

This is a bugger everywhere. Doesn't stop major companies from having
plenty of toxic garbage hauling around the country but stops us from
gettiing something little more toxic than table salt.

==
John - Photographer & Webmaster
www.puresilver.org - www.xs750.net