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Greetings to youI have bought a pack of 100 sheets 13x18 Tasma-FN64 exp. 2010, Will have to wait it arrives from Russia before I can start playing with it. Paid 7500RUB ie. (as per today...) ~66EUR/70USD, which is a nice price for 100 sheets.
In the meanwhile I am curious if the recommended developer recipe printed on the box matches a known recipe. It's metol based, but I don't find in my docs a similar one. I have chemicals so will just make this receipe, just curious if it reminds someones of another named one
Tasma mentions a "standart receipe nr. 2"
8g metol
125g sodium sulphite
5,75g sodium carbonate
2,5g potassium bromide
View attachment 300923
Closest I have in my docs is a Ferrania R11:
5g metol
100g sodium sulphite
5g sodium carbonate
1g potassium bromide
----
developing time, mentioned on front label of the box (from seller's pictures) 5 mn
(btw. notice the bilingual text, russian/tatar, as Tasma is indeed in Kazan).
View attachment 300924
Looks almost like a fast-working version of D-76H -- carbonate will make it work faster than the borax.
It also resembles BJP Metol-Carbonate developer (but with half the metol).
Greetings to you
I would like to congratulate you on obtaining this precious box.
I have repeatedly sought to buy from you the evil company, but I had no luck because they want to get money in Russian currency and they do not ship goods outside Russia..
.../... I felt that the final cost of the product after shipping, etc., will exceed the value of alternative products such as (FOMA) in stages.
But I have a hidden feeling that I do not know the reason for. It tells me that the emulsions of that company inevitably have a very special flavor that is not available in any other photographic emulsion.
no dear..thank you! : -) yes I guess it's worth to experiment a little with this film. But as you say to get it is not easy. Currently Tasma sells to the public 35mm films Typ-25 and Typ-42 but outside Russia it would be difficult to find: I don't think there are big importers and people doing small scale import may be quite expensive. If as your profile says you are in Egypt, postal cost may be even bigger than Russia-EU.
Sheets of FN-64 are no longer sold anyway, only 2nd hand.
Btw, with the current bans frenzy and Russia sailing away from the euro/dollar Swift/Visa/Mastercard ecosystem, not possible to buy in a trivial way, and it means also it can't be imported in the euro-american realm directly because Swift ban. Chinese, indian and turkish markets on the other hand could be providing if things keep going like they are now, there may be a USA+EU block with its own banking system, a BRICS block with its, and bridging solutions.
For the anecdote even the site where I found the film is accessible now only via russian-located VPN in order to circumvent european blocks and network attacks ...
That said i have friend in Russia who can ship me things, and I also know how to buy through cracks in the euroamerican blocus, in a way that it is still cheaper than buying Foma or at least not more expensive.
These are amazing results my dear friend..i didn't think of D76H indeed, which is without hydroquinone ... but then I have seen few samples of FN-64 developed in D76 though, like for instance, from
https://club.foto.ru/forum/view_post.php?p_id=13079407 , though age of the film isn't mentioned.
View attachment 301106
latest FN-64 batches sold to general public are from 2011. This was/is an aerial film otherwise provided in 18cm wide rolls for cartographic and military use. Batches cut as 13x18 were available sometime. That's what I have bought. This film is described on runet as thin (meant for big aerial rolls) easy to scratch, high contrast, high sensibility to red to work around atmospheric layers and with quite some base fog. Hence the potassium bromide of the Tasma recommended formula.
in fact I was curious about any possible existing developer for aerial emulsions. The one found easily for sale is Agfa Aviphot and Afga sells a G74 xxx developer, but I guess the formula is either patent protected or very specific to machine development for this kind of film
it is interesting to find how this FN-64 may compare to Aviphot. Anyway I will just use the formula given by Tasma first.
meantime I found out that ST-2 developer is in fact Agfa-12 or Orwo-12, ie. the ancient standart of BW:
https://d-76.ru/blogs/podrobnoe-opi...istyy-negativnyy-proyavitel?ysclid=l0zwrp3ukc
in that links it is further explained that in order to avoid sediments, a gram of BASF Trilon-B (a form of EDTA) can be added, and increased amount of sodium carbonate to compensate the acidification caused by EDTA.
for 1 liter:
trilon B 1.0g
metol .8,0g
sodium sulphite anhydrous 125g
sodium carbonate anhydrous. 6,0g
potassium bromide 2.5g
I found some thread about this AGFA/ORWO-12 /ST-2, for Svema FN-64 and Orwo NP15:
https://www.photrio.com/forum/threads/agfa-12-st-2-orwo-12-modern-equivalent-developer.112880/
Svema FN64 and Tasma FN64 may then be the same thing, just that in the aftermath of desovietization, former production of Svema in SSR Ukraine was repatriated to Kazan at Tasman .
Available Svema FN64 or ORWO NP15 2nd-hand are now quite old, mostly from the 90's, but Tasma FN64 is probably still in use, despite last general public batches were seen ten years ago.
I checked and Agfa-12 is listed on Massive Chart but only for 2 films: HP5+ and Tmax-400.
I did spot discussions on club-foto-ru I think were indeed some compared Tasma FN64 to HP5+ ...
a relatively recent review of this film I found from 2020. The guy bought a box of exactly what I found on avito.ru the other day. He used as iso 32 and developed in pyro350 1+1+100
He mentions also the thinness of the film, uneasy to load and bend when dry. Reminds of litho thin film...
http://shmigiriloff.com/tasma-fn-64-13x18/?ysclid=l0zy3ohw5d
View attachment 301104
View attachment 301105
no dear..
Tasma Factory, is a government factory, and its main objective is to sell air and industrial films to governments in the first place on long-term contracts.
It also manufactures X-ray films.
Maybe, but it's too complicated.yes, but they package sometime emulsions for consumer market. This was the case with 35mm rolls Typ-25 and Typ-42. Or the FN64 13x18 sheets ten years ago. Etc.
Otherwise yes, what you say.
This is the number of Mrs. Fatima (I think this is her name as far as I remember), and this Tatar woman is considered the deputy general manager of the factory..
ST-2 developer is in fact Agfa-12 or Orwo-12, ie. the ancient standart of BW
Svema FN64 and Tasma FN64 may then be the same thing, just that in the aftermath of desovietization, former production of Svema in SSR Ukraine was repatriated to Kazan at Tasman .
latest FN-64 batches sold to general public are from 2011. This was/is an aerial film otherwise provided in 18cm wide rolls for cartographic and military use. Batches cut as 13x18 were available sometime. That's what I have bought. This film is described on runet as thin (meant for big aerial rolls) easy to scratch, high contrast, high sensibility to red to work around atmospheric layers and with quite some base fog.
That's definetely quite a different film relabled FN-64 for marketing purposes only.
The real FN-64, previously called Photo-64, was a low contrast consumer panchromatic negative film without any excessive red sensitivity. Its unique feature was its stop-gamma emulsion; the max. everage gamma was fixed at about 0.65, and any extended or high-temperature development never made it grow any more. In the days when anyone taking pictures of their family had to process their films at home, this type of emulsion ensured everyone got negatives of the same standard contrast and had no problems printing them onto normal-contrast graded papers.
(FN is for photo negative; the motion picture negative series of films were called KN for Kino-Negative, and the graphic arts films were labeled FT for phototechnical.)
how did they achieve the prevention of more contrast buildup?
As I said, I am not an engineer, and I don't know the technological details, though I've read a bit on the topic. If I remember correctly, some special manipulations had to be undertaken in the process of applying the emulsion to the base to make the microcrystals turn onto their sides.... But it's also possible that I don't remember it correctly at all, and the technology was different.This is amazing, how did they achieve the prevention of more contrast buildup?
Really amazing.
With overdevelopment, stop-gamma films retain the standard contrast but they get pretty dense and grainy (they gain a lot in speed, too, but their grain gets much bigger than the grain of normal fast films of the same speed). In my early teens I overdeveloped (due to neglecting the temperature control while it was about +28°C around instead of the standard 20°C) a roll of Photo-65 (that was the name of Photo-64 / FN-64 before the ISO standard) to the extent of having 5 minute exposure times under my enlarger. The contrast was normal. But printing was a nightmare. And the grain was outrageous, too.
So back in the USSR, FN-64 was mainly a consumer film. Professional and experienced amateur photographers used to avoid it preferring normal films with their CI dependent on the development stage of the processing.
Yes ST-2 is A-12.
'ST' is for 'STandard'. ST-2 was the developer used in the sensitometric control of all the Soviet 35mm and type 120 photographic
That's definetely quite a different film relabled FN-64 for marketing purposes only.
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