Hi Paul,
You'll need silver nitrate and ferric oxalate. Make sure you get FERRIC and not ferrous. I made that mistake when I was starting out. I order silver nitrate from Nymoc in Toronto, and Ferric oxalate from Bostich & Sullivan (it's super fine and goes into hot water easily).
I develop with Sodium Citrate. I find this to be the most stable developer, and with filtering and slight topping off with fresh stock, goes on and on. 100g per litre. I use powder not crystals, so I've cut back on the amount needed.
I use Citric acid for clearing. 30g per litre water.
For fix I mix up sodium thiosulfate anhydrous 25g to 750ml warm water. Then add 50ml household ammonia (no additives type). Top off to a litre. Fix for a minute.
Once you get comfortable and good at it, try toning. I sometimes use selenium which is a bit tricky, as you have to be very careful not to bleach out high lights. Selenium toning is done after fixing. To counter that, I expose a little bit longer.
Gold toning is the cat's meow. Tone after clearing, and water rinse (before fixing). I get gold chloride from B&S. I use gold toning formula #2 as outlined in Sandy King's article:
http://sandykingphotography.com/resources/technical-writing/the-kallitype-process
Not all papers are suitable for alt processes. Some need acidifying, such as Stonehenge. I acidify in 10% sulfamic acid for 5 minutes, then give the paper a really good wash. You can also acidify in a citric acid bath. Papers that don't need acidifying that I use are Arches Platine, and Hahnemuhle platinum rag. Expensive, but lovely. Learn on cheaper paper first and if you come to like the process, move up to nicer papers.
I apply the sensitiser with a foam brush or puddle pusher (glass rod). Some people use expensive brushes, but I don't feel necessary. Brushes absorb sensitiser and a bit more is wasted, compared to using a puddle pusher.
Read Sandy's article. It's where I started. Good luck!
Ask away Paul. Ask away!
Not the same. Very very few chemicals these days are commonly referred with different names.I can get Ferric Ammonium Citrate Green, is that the same?
Thanks.Not the same. Very very few chemicals these days are commonly referred with different names.
Google the two things and wikipedia will tell you the differences.
Ferric oxalate is difficult to find for me too. You can make it yourself if you can source the constituent chemicals and are careful and confident and have an eye to safety. Have a look at Mike Ware's site or Farber's book for a how-to on this.
As for negatives, the sites linked to in posts above do discuss what kind of negatives work best for different alt-processes.
Generally speaking (dangerous to do so but I like risks) alt-processes like a reasonably dense negative with plenty of contrast and what is often called a "long scale"; which basically means a very broad range of densities on the same negative from thin to rather dense.
As for developer, take your pick and work with it. I make lots of alt-prints and most of my negs are developed in Rodinal or D23. Others have their preferred developers, like the staining developers. But there is no "best", although that will never stop people claiming that their own preferences are "BEST".
Thanks Andrew. Ill give Pyrocat a try. I like experimenting with different developers to see what they do. For high contrast I use D76 straight or XTROL straight. I have some foma 100 8x10 coming to have a tryI use Pyrocat-HD because it allows me to print the same negative in silver, alt, or scanning. And then there are some other qualities that I like. I find that it's not a good developer for HP5 and alt printing. It just doesn't work for me. Too much base fog with extended development time. Instead for HP5 I develop in a high contrast developer, such as from scratch, D-19 1+3.
You don't have to use Pyrocat-HD.
Since you are hew at these processes, I suggest VDB because it is simpler in every way.Hi
Im interested in starting to make contact prints in either Kallitype or argyrotype or vandyke. I dont know you tell me.
Not sure where to start, most kits seem to be expensive and limited to only a few 8x10's. So I was wondering if someone could give me a grocery list of whats needed and amounts so I can buy the ingredients and make my own.
Have normal film and paper chemistry, not sure if any of that is of use?
Im ok with following recipes and process, but I really struggle with Latin....
Intend to use 8x10 negatives, well once I have a camera, may have to make one.
Yes I have googled and searched, just need a little direction to where to start.
Thanks
Hi Andrew I used Hahnemuhle 300 Platinum Rag 8 x 10 in. I missed a few spots so I tried a second coat and made a mess of things.Off to a good start. Which paper did you use? Do you know what caused thosr wavey lines?
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