Dug said:Ed - I have always mixed the P30 kits one at a time, for one liter of prepared solution. If I use the 5 liter kit mixed 1 liter at a time, do the stock solutions need a burst of butane in the top to keep the oxygen away or any other weirdness to preserve them?
EdM said:My question for the group has to do with both the Classic and RC print material life. Has anyone used it when it is more than a year out of date, and what attendant problems or failures have there been?
Ed
...unless, of course, if it would come fractioned in 5 one-litre bottles.EdM said:Why is it of almost no use to the amateur photograher? The 5 litre kit will (according to the Swiss source) be mixed one litre at a time just like the 2 litre kit was. Considering the keeping properties of the stock solutions, I can live with that.
Ed
ras351 said:After using the P30 kits for a few years I've been playing around with my own developers in order to resolve the contrast issue. Results so far show promise. Firstly the developer is basically a normal B&W developer with a small amount of thiosulphate added to remove the masking layer. Personally I've been testing with the Beers formulas which for lower contrast uses only the metol developer, with the thiosulphate added at a rate of 0.1 to 0.2 grams per 100ml of developer (ie 30ml Beers A stock + 60ml water + 0.1 gm thiosulphate). This develops a silver image in the paper for each of the three layers. I can't see any reason why you couldn't use a normal multigrade type developer (with thiosulphate added) if you're happy with a normal contrast image. Dilution and time can be used to tweak things slightly. You can also use phenidone/ascorbic acid developers if you have a reaction to metol.
Roger.
davetravis said:Hi Folks,
I've done web searching and found the new 5L kits at:
UniquePhoto - makes you buy 4 of the 5L kits...
Adorama may get the 5L soon, but the 2L is not being produced
B&H - has it, but still won't ship...
RainierPhoto - takes a phone call
Calumet - will arrive 8/05
I've got one 2L kit left and will use it with great ceremony!
I'm totally commited to Ciba, and will use any chems that will work!
The 5L will work for me. I'll use 2L in the ICP42, two batches, and make
the big ones in the Jobo Drums with the remainder.
It sounds like I should stock up on the poly in sheets ASAP!
Long live Ciba!!!
Wayne said:I'd be interested to know if you have any real success with this, I tried numerous divided developers a few years ago and had very little luck lowering the contrast. I contacted someone who had used the same formulas successfully to lower contrast in the past, and he claimed the emulsion changed a few years ago and it no longer works. That was my experience, and I finally gave up trying.
ras351 said:Hi Wayne,
Yes, it works although it requires some calibration and testing initially. As in B&W film processing you increase exposure and reduce development time (or temperature) or change to a slower/lower contrast developer. It doesn't beat contrast reduction masking for ultimate control but if you require less than a paper grade change (or thereabouts) it's an option. I've used it to print from transparencies which I couldn't reasonably print using the P30 kits without losing the shadow detail or washing out the highlights.
Roger.
SkipA said:I called every photo store in town that keeps darkroom supplies. None have Ilfochrome P-30 kits or Ilfochrome paper. One has had the P-30 kits on backorder since January. They all say they simply can't get it anymore.
Adorama is out of stock. B&H has it but won't ship it. Freestyle has Arista 2 liter kit, but not P-30. Calumet is out of stock.
I've done a bit of RA-4 printing from negatives, but I've never made R-prints before. I just want the experience of making contrast masks and producing one or two decent R-prints before the process entirely disappears, but then I think I'll be done with it.
Anyone know where I can get a P-30 kit and some Ilfochrome paper?
Marco Gilardetti said:Ed, however it is, these are good news indeed.
By how many different liquids is the kit composed? Just three? Which quantity of liquid does each contain? See, I may want to start keeping the old small bottles to fraction the liquids, rather than leaving the new bottles half-empty.
And what about the papers? Did you see some *NEW* Ilfochrome on the shelves, perhaps?
Wayne said:I wonder if the packaging/volumes will the same on both sides of the pond though.
Wayne said:I'd be interested to know if you have any real success with this, I tried numerous divided developers a few years ago and had very little luck lowering the contrast. I contacted someone who had used the same formulas successfully to lower contrast in the past, and he claimed the emulsion changed a few years ago and it no longer works. That was my experience, and I finally gave up trying.
Marco Gilardetti said:Thank you, Ed. It'll be quite difficult to fraction and store before usage, methinks. Will see.
As for volume/packaging, who knows? As a matter of fact, in my experience I can't recall ever purchasing two P30 or P30P kits which looked the same, had the same content and made the same quantity. Each time I went to the store, something had changed. Say: funny the developer comes in three compounds now. It was only two last time. Really, who knows.
That's what I was wondering. I still have some old stuff in stock, so I think I'd better "collect" all the bottles from now on...EdM said:Have you kept any of the old 250 ml containers from the P30 kits?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?