there is dry transfer where the dyes are transferred from the polaroid material to paper during development.
in this case the emulsion is lifted off the image/film base by soaking it in a hot water bath and then the paper is slid under the floating emulsion and lifted out of the water bath
I am aware that the process requires a processor and a special holder for the film. What is the nature of the complications as opposed to using 4x5 materials.... are the emulsions different and not as suitable to the process?
the difference has to do with the need for the film holder and processor. It is not a question of emulsions or suitability. I am sure this is what John meant. Some people are not aware that the film is developed in this manner
Polarid lifts are a little more tricky than a transfer as you are handling a very thin, wet piece of "film"; however as with everything else it just takes practice. Some prefer to use the larger size as you have a larger surface .
A very good reference for Polarid processes is a book by Kathleen Carr called Polarid Masnipulations. She covers all types of techniques. There are several others on the market as well; i just like hers .
That looks like like an emulsion transfer or lift. http://www.polaroid.com/ has info. I've had a go with 5 x 4. Other than a polaroid back, a tray of very hot water and something to float the emulsion onto I don't think you need much else. It's a bit hit and miss though but can give unique and stunning images. Certainly well worth a pop. I'd try with 5 x 4 first, it's expensive.
I can 2nd the referral for Ms. Carr's book. Have it and used it for Polaroid transfers, never tried the emulsion transfer though..but the book is excellent..If I recall she has fairly new one out. Her web site is www.kathleencarr.com give it look. These are a lot of fun.
I will order in Carr's book as well as one by Christopher Grey, that should get me started. I also found the Polaroid manual for 8x10 on-line and I think you are correct about John's post as there are different steps to producing the positive that I was not aware of. My assumption now is that once I have a positive the process is the same for all formats.... Thanks again everyone.
I seem to remember I wrote a longish post on how I do this once upon a time...
It's not really dificult, you just have to keep your mouth open to let all the aggression escape that way instead of being transmitted through the arms and hands to that lump of recalcitrant jelly. There's two of mine (the only two!) on my web page.
Yikes! I was posting at the same time as the last few posts.... looks like I am good to go... I really like the 'floating' quality of the images I have seen and I am looking forward to using the process with some water images..... cheers!