Now if someone can come up with an automated re-spooling machine that can produce in reasonable quantity without significant QC issues ....
The 620 spools that are being manufactured are plastic, and therefore work in some but not all 620 cameras. The plastic spools are necessarily slightly thicker than the original metal ones, and don't work properly in some of the tightest fitting 620 cameras.
No one has come up with an economically viable way of economically manufacturing small quantities of metal 620 spools.
More importantly though, the technology involved in making plastic (or even metal) 620 spools is far simpler than making 120 backing paper or 220 leaders and trailers, which need to:
1) be of different thickness at the edge than at the centre;
2) be fully opaque and non-reflective;
3) be of the correct thickness and flexibility;
4) be able to receive ink that
a) won't migrate or smear even when pressed against photographic film; and
b) won't react chemically when pressed against photographic film;
5) won't shed or react chemically when pressed against photographic film; and
6) has very particular requirements with respect to absorption and retention of moisture.
All of the above must be done to very close tolerances.
All of the above characteristics are within the capabilities of the best paper manufacturers, but the one (or ones) willing to do so on a production basis:
i) don't do this work cheaply and, perhaps most importantly,
ii) are only willing to do the work in large batches that, for 220 film, are uneconomic for the film producers to purchase.
For 220, none of the film producers are willing to tie up the necessary capital for several years at a time. The capital requirements involved in 120 backing paper are themselves problem enough.
Have you taken apart a 220 roll?
220 backing paper is essentially the same as 120 backing paper. Only the labeling changes, and of course you need less paper since it doesn't run the full length. Even the start mark, within tolerances, can be in the same position...
Only if they are willing to do it and lose a bunch of money on each roll.
Or, based on past experience here with the first Shanghai attempt, willing to put out severely substandard product..
FWIW, I'm disappointed - I would have likes to see that someone has come up with a solution. I have a camera with extra 220 inserts and a camera that can be switched to 220, and they both performed really well with 220 in them.I bought and have just received a few rolls of the current round of Shanghai 220 film. The first roll I loaded into my Rolleiflex (which had the 220 modification) jammed. After extracting and examining the roll it was apparent the leader is poorly attached to the film with a bit of masking tape about a half an inch in from the edge of the leader. Because of how and where it's attached the edge of the leader sticks up and jams into the roller, making it impossible to completely load.
I guess I'll have to open these rolls in a darkroom and tape them down properly. So much for quality control. I probably should've just stuck with 120 from Kodak or Ilford.
they were going to cost £300,000. Just think what that machine would cost now!
FWIW, in 2006 Ilford/Harman costed out both rehabilitating their existing machine (which was worn out to the point of unusability) and having a new machine built, and the costs were the same £300,000.
Is Shanghai state owned? If it is, it would seem that currently it may be operating its 220 production on a shoe-string from evidence in #205. It would look as if the speculation that it was a old lady "knife and forking it " in the dark may not be far from the truth. A largely "hand-made" 220 can be fine but it relies on the kind of consistency than often fails when it has to be maintained for roll after roll. Even at relatively low levels of production the problem may be that demand isn't high enough for much if any investment in mechanisation to be profitable but a little too high for consistent "knife and forking" methods to work in a faultless way, so faults of some kind may have to be expected.Ok, so we have a state-own Chinese company, most important (or one of the) manufacturer and distributor of X-ray film for hospitals, situated in a country that has the largest consumer pool in the world, and we're actually comparing this to Ilford's situation and wondering why Ilford isn't keeping up?
Is Shanghai state owned? If it is, it would seem that currently it may be operating its 220 production on a shoe-string from evidence in #205. It would look as if the speculation that it was a old lady "knife and forking it " in the dark may not be far from the truth. A largely "hand-made" 220 can be fine but it relies on the kind of consistency than often fails when it has to be maintained for roll after roll. Even at relatively low levels of production the problem may be that demand isn't high enough for much if any investment in mechanisation to be profitable but a little too high for consistent "knife and forking" methods to work in a faultless way, so faults of some kind may have to be expected.
pentaxuser
I think the old Rollei Automats are the only cameras I know which sense the beginning. Of course, they stopped including that mechanism in the new TLR cameras in the1980s.Would This 220 film work in a camera like the Fuji GW690 where you manually line up an arrow with the dots on the film gate? There is no super precise feeler mechanism in that camera.
I bought and have just received a few rolls of the current round of Shanghai 220 film. The first roll I loaded into my Rolleiflex (which had the 220 modification) jammed. After extracting and examining the roll it was apparent the leader is poorly attached to the film with a bit of masking tape about a half an inch in from the edge of the leader. Because of how and where it's attached the edge of the leader sticks up and jams into the roller, making it impossible to completely load.
I guess I'll have to open these rolls in a darkroom and tape them down properly. So much for quality control. I probably should've just stuck with 120 from Kodak or Ilford.
All the late-1950s-1970s Rolleiflex models like the E and F series had the sensing mechanism. My three E models all worked flawlessly with all 120 films that I used, including 120 Kodachrome 64.I think the old Rollei Automats are the only cameras I know which sense the beginning. Of course, they stopped including that mechanism in the new TLR cameras in the1980s.
Well that's a very broad statement and if that's true to the extent that every company does what the Party tells it to then what might be the benefit to the greater good of China i.e the Party in doing this? It is not clear to me why the Party would target a small part of the film business, namely 220 when it hardly qualifies as being either very profitable or particular prestigious.Everything in PRC is to some extent State Owned.
Well that's a very broad statement and if that's true to the extent that every company does what the Party tells it to then what might be the benefit to the greater good of China i.e the Party in doing this? It is not clear to me why the Party would target a small part of the film business, namely 220 when it hardly qualifies as being either very profitable or particular prestigious.
I simply mention this because my impression in your #206 was that your mention of the State suggested that Shanghai was placed to do things such as 220 that Ilford, by comparison, could not command the resources to do
I may have been wrong in my assumption of your point and if so can you say what it is about state ownership and the PRC's influence that gives it reason to launch 220 when Ilford has decided it isn't viable
Thanks
pentaxuser
State has a finger in the pie, they allow the 'owner' to go out and make profits as they see fit as long as they keep the business up and running and cranking out what the state needs.
China may very well be seeing a film production as a vital economic resource. Have all the hospitals throughout China switched from analog X-ray to digital? In case of a gamma burst or the grid gets knocked out they may need the access to film.
Yes my point was that while your first sentence may be a good summary of the State's position and overarching power on the whole range of Chinese companies it is not clear to me why the State needs specifically to do this for 220 and would thus apply pressure on Shanghai to make it. For reasons I have already given it is would appear to be neither particularly profitable for China or prestigious for the reputation of China.
Do you believe China is using the State's resources to enable Shanghai to produce 220 at a profit or for reasons that are lost on me are simply doing it for China's prestige? Surely only on the basis of it helping Shanghai in such a way does it make any sense to compare it to Ilford who of course have to rely solely on its own resources to re-start 220
If you are right about State help then we should rejoice because then Shanghai can drop its likely manual way of making 220, buy the machinery needed and produce 220 at a better quality level and with economies of scale make it more cheaply for all potential consumers of 220?
pentaxuser
It appears to ahve started as state owned: https://www.shjcfilm.com/
"Established in 1958, Shanghai Shenbei, a state-owned film manufacturer, developed Shanghai GP3 black and white film. It was aiming to be an affordable film product friendly to the domestic market. With 40% to 50% of the market share, Shanghai GP3 film was one of the most classic films.In early 2000, the film industry was primarily shocked by digitalisation Shenbei Factory came to the end of its first chapter."
Maybe it went private later (after its "first chapter")? It is no longer Shanghai Shenbei. It is no Shanghai Jiancheng Technology Pty Ltd., which at least implies private.
Is Shanghai state owned? If it is, it would seem that currently it may be operating its 220 production on a shoe-string from evidence in #205. It would look as if the speculation that it was a old lady "knife and forking it " in the dark may not be far from the truth. A largely "hand-made" 220 can be fine but it relies on the kind of consistency than often fails when it has to be maintained for roll after roll. Even at relatively low levels of production the problem may be that demand isn't high enough for much if any investment in mechanisation to be profitable but a little too high for consistent "knife and forking" methods to work in a faultless way, so faults of some kind may have to be expected.
pentaxuser
In the PRC, cheap product is not necessarily the result of shoe-string production. It's another reality, and we can't compare business models nor production operations there to those in Europe or North America. Truthful and viable information is impossible to gather, and we're are just left with baseless speculation. Point is, there's absolutely no way to know how they are producing their 220 - neither from a technological point of view nor a financial one. Hence, makes no sense to ask Ilford to do something a Chinese company is doing when we have absolutely no clue how doing that something is actually achieved by them.
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