"polydispersity" Wissenschaft hin, Technik her... Du mußt doch mit der Zeit gehen. Es sollte heutzutage doch stattdessen heißen "polydiversity". Damit würdest Du Deinen Neukunden zeigen, daß Du kein einziges Kristall diskriminierst...
There is no discriminationm, because the emulsion was made this way. And this probably results more from a given constraint than ideological intent."polydispersity" Wissenschaft hin, Technik her... Du mußt doch mit der Zeit gehen. Es sollte heutzutage doch stattdessen heißen "polydiversity". Damit würdest Du Deinen Neukunden zeigen, daß Du kein einziges Kristall diskriminierst...
We are waiting for the Color Mission I film boxes to be produced and shipped. Unfortunately we had several delays in this (like others). Despite the fact that it is uneconomical for us to finish films into black canisters with a label manually while waiting for the boxes to arrive we did so with a limited amount and will keep doing so every week. However the biggest surprise to us was the demand for Color Film. Orders came in 100x more than expected (and we based the demand on comparable films sold @ comparable prices). Color Mission I will sell out much faster than expected. So we decided to launch Color Mission II "Helios" much earlier than originally planned. This film ist the first attempt to recreate Color Mission I. It is a simplyfied version with only 1/3rd of the emulsions/layers and a low speed. More info coming soon.
Yes if you have already finished the film to be boxed....We have a new government now and the first thing they did was raising wages by law. Applying one sticker now costs us about 25 Cents in wages only plus the cost of the sticker. The cardboard is fitted by a machine. Costs are in the range of 0,1 cents plus the price for the box which is comparable to the sticker.
If the distribution of grain sizes is broad, the following disadvantages would be
considered:
1. The contrast of the characteristic curve cannot be increased.
That is our standard since about a year. Inside the box it will have this.
Wow, takes more than a minute to put the sticker on? But it is interesting how the market is changing. If I'm not mistaken you said, a few years ago, that boxes are a thing of the past. Too expensive. Now they have redeemed themselves.They also make it easier to see what I have in the fridge.
Why would exposure latitude be narrower if the emulsion is fine-grain? Old/classic bw emulsions have a very good latitude even at very low (by today's standards) iso.
I can't find anything that would suggest that the exposure latitude is strictly dependent on polydispersity. The only thing even remotely close to this theme is this paragraph in Organic Chemistry of Photography book (Fujita S., 2004)
I am not sure if I can explain it better. The more heterodisperse an emulsion is, the larger the latitude. The more monodisperse the more contrast. If you only have one grain size (monodisperse) you almost have a binary system (on or off) and all silver halides will become developable at the same light intensity threshhold. If you have many different sizes there are many more of these threshholds and thus greyscales inbetween. In modern emulsion making you tend to create more monodisperse emulsions of various sizes and then mix them thus creating the desired characteristic curve. Is this better to understand?
a bit strange. I'm not trying to argue, of course, just trying to learn.Any given fine grain emulsion is lacking polydispersity
I am not sure if I can explain it better. The more heterodisperse an emulsion is, the larger the latitude. The more monodisperse the more contrast. If you only have one grain size (monodisperse) you almost have a binary system (on or off) and all silver halides will become developable at the same light intensity threshhold. If you have many different sizes there are many more of these threshholds and thus greyscales inbetween. In modern emulsion making you tend to create more monodisperse emulsions of various sizes and then mix them thus creating the desired characteristic curve. Is this better to understand?
Well polydispersity means many different grain sizes. The wider the spread the more polydisperse. As outlined above a "fine grain" emulsions has only small(er) grains and no coarse grains. So the upper end of the grain size spectrum is capped.It is, but monodisperse emulsions don't just "happen" afaik, it needs to be manufactured monodisperse. It is easier to make a low-iso monodisperse emulsion, but I just find the claim that
a bit strange. I'm not trying to argue, of course, just trying to learn.
When will Helios film be available for the public?
Will the Helios film be named Helios-44, Helios-103, Helios-40 or maybe Helios-77M ?
No, the wages are simply so high now. You can´t go by the nominal hourly wage. There are so many things on top like payed vaccations, hollidays, social security (this alone is 25% extra), sick leaves, burocracy etc. that you have to at least double the nominal wage to arrive at the real costs per actual working hour. And yes, it takes a very long time. There are prep and after works as well like printing the stickers, grabbing the box, sitting down, bringing it somewhere etc. I am also always surprised to what it acumulates but manual labour in Germany is just insanely expensive now.
I'm questioning the ability of Adox to produce any kind of real color film themselves; Mirko has said in a talk that it would take
Suddenly they have couplers, sensitizers and all the other jazz figured out?
At least be honest if you've got a few vats of chemicals that you've got laying around and now are making some kind of film concoction and try to make some money out of it (fairly so, I want Adox to succeed)
I'm questioning the ability of Adox to produce any kind of real color film themselves; Mirko has said in a talk that it would take hundreds of millions and many engineers to come up with a film that might even compare to a Ferrania film.
Isn't Color Mission I a "real color film"? Ok, it was old production. But it shows correct colors.
Keep also in mind that most film manufacturers have no own chemical expertise in element-synthezising thus have to rely on outside sources.
It just does not sit well with me that they say the proceedings of these films will go into color “R&D”, what R&D? They know the R&D that will lead to anything substantial will cost them millions. Maybe me wanting them to be extremely transparent is unreasonable; but many people around me share the same sentiment.
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