I'm just curious and this thread is not meant to start a large discussion or, heaven forbid, any arguments, but I have read in more than one article that GP3 is nothing more than Orwo UN54. What's the truth about that? I don't use either, but was just wanting to put the my curiosity kitty to sleep.
Is Shanghai GP3 the same as Orwo UN54????
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I have read the same. So I will watch this unfold.
Yes since 2019 when 135 format was introduced (and shanghai assets and brand was taken over by a former wholesaler Shanghai Jiancheng Technology Ltd ) the new GP3 was identified as un54 Imported in bulk rolls and packaged into single rolls in China.
Shanghai was later confirmed as orwo/ original wolfen partner for packing their own branded films such nc400 as into cassettes and undertake similar confectioning for lomography non std colour films, in 135 those in plastic cassettes.
Shanghai was later confirmed as orwo/ original wolfen partner for packing their own branded films such nc400 as into cassettes and undertake similar confectioning for lomography non std colour films, in 135 those in plastic cassettes.
Based on many years of experience with ORWO UN54 and my own tests with GP3 100 135, I can confirm that GP3 100 is identical to UN54.
In the 120 / 220 format I have discovered that GP3 100 is not UN54. The films I purchased are FOMA 100 material.
In the 120 / 220 format I have discovered that GP3 100 is not UN54. The films I purchased are FOMA 100 material.
Yes thanks for adding un54 afaik has only ever been produced on a base suitable for 135. The original gp3 was produced in medium and sheet formats, and at takeover there was a lot of NOS (new old stock) relabelled, and little was said about any future in house production. Would be interesting to hear if the sheet film is also fomapan.
Well, that settles that as far as 35mm is concerned, but I was much more interested in 120 and sheet film since that's what I usually use.
I do recall Finding Shanghai 400 Bulk film, (proably on e-bay) and when I used the roll I purchased, I found BH perfs and the edge Print of Filmotec N74. But it came in a Cardboard Round container. Never saw any more advertised.
(I miss N74, back when it was common it was a good useable film, and less expensive than many of the other films on the market) I probably went those a couple of 400 ft Rolls.
(I miss N74, back when it was common it was a good useable film, and less expensive than many of the other films on the market) I probably went those a couple of 400 ft Rolls.
I did read somewhere that someone claimed the GP3 100 was actually Foma 100. The few rolls of GP3 100 that I used when it first came back on the market sure didn't seem like Foma 100 to me. Of course one hears just about anything and everything when you click that Google search button.
When it comes to sheet film, the only thing I do know is that the Shanghai GP3 100 that I got a year or two ago was most definitely not Fomapan 100. I don't know what it was, except that it aged horribly badly and an opened box became unusable within a couple of months, possibly (bit this is a bit of a wild guess) due to an interaction between the film and the sheets of interleave paper it was stored with.
I've not tried Shanghai 100 in 35mm or 120 format; only that single box of 4x5", which will remain a one-time experiment.
Yes, I was sure the 100 in 120 that I had used wasn't any Foma product. Koraks, in what way did it age badly? Was it a mold/fungus type problem or something else that showed up after development? I will have to check a partial box of 4X5 that I have stored in the fridge. Should tell me how it stores cold since it's been in there for about 9 months now.
The failure mode was very peculiar; the film only created some sort of strong dichroic fog and virtually no image density. I've never seen anything like it. If memory serves, the processed negatives looked a little tan with locally an iridiscent shine to them. I may still have one in a folder somewhere, but I'd have to do some rooting around.
My golly, that is very strange. I check my stash right away, but in the next couple of days I'll take a couple of shot with my cool stored GP3 and see what I have. That will determine whether or not I buy anymore GP3 sheet film. Korea's, was yours cold stored?
My fresh pack of 3x4 Shanghai GP3 has mottling in the shadows, probably due to the paper in between sheet film. Quite disappointing, since that is the only 3x4 fresh film I can find. I guess it will be a one-pack experiment for me as well, life is too short for unpredictable quality.
Well, we'll see how mine fairs after being stored cold.
That's not good to hear at all. I'm just starting to put my refinished 8X10 camera back together and was considering GP3 100 in 8X10 since it's a dirt-cheap 8X10 sheet film. Looks like it will be Foma 100 now.
A few photos with the prominent mottling in recent fresh GP3 3x4 sheets. The film was very under-exposed, thus accentuates the problem. If I were optimistic, it gives a "watercolor" filter for free. ;-)
Violin leaning on window - LF3x4_004 by Zheng, on Flickr
Hand painted - LF3x4_005 by Zheng, on Flickr
Tuning peg - LF3x4_006 by Zheng, on Flickr
Violin leaning on window - LF3x4_004 by Zheng, on Flickr
Hand painted - LF3x4_005 by Zheng, on Flickr
Tuning peg - LF3x4_006 by Zheng, on FlickrWhoa, that is something! I'm not much into the water color filter thing myself so I'm going to stay away from this stuff until the bugs crawl out of it.A few photos with the prominent mottling in recent fresh GP3 3x4 sheets. The film was very under-exposed, thus accentuates the problem. If I were optimistic, it gives a "watercolor" filter for free. ;-)
To be fair, this is very under-exposed negative. But I have another set of photos in bright daylight, and the shadows still have mottling visible.
Well, it's still bad enough to scare me off. Tomorrow is supposed to be nice a fairly sunny here (we'll see?) so I'm going to load two sheets of GP3 tonight and ready them for the morning sunshine. I'll see if my cool stored GP3 has mottling or not.
I used GP3 in 120 and 4x5, mmm at least 10 years ago, when the price made it worth a try. It was OK then when I was learning 4x5 (and figuring out which shutters worked) but would have some mottling, or hair, in the 4x5. The 120 sometimes had backing-marks on the film. Since it is now priced less favorably to Foma and other more dependable brands I'm not planning to try it again yet. But always fun to hear others in the film sleuth club!
Sun isn't shinning yet, but I'm going to pop off a couple of sheets of GP3 anyway and see what mind looks like. fingers crossed!
I surely wouldn't want to use this stuff on anything more important than testing developers or equipment. I'll be processing my four test shots tomorrow evening and will post the results.
Well, I got a little side tracked, but finally developed four 4X5 sheets of GP3 and have to say I saw no mottling in any of those sheets. The film was frozen for some time and then cold stored in the fridge for about six or seven months. The box has an expiration date of 07/2023 and was developed in BTTB for 5+5. The negatives actually look pretty good. I think I'll keep this box for use in an old 4X5 falling plate camera and maybe testing certain lenses out.
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