There are a zillion trans materials. No really more then you can fothom. Ones that you can print at home or silver halide if you wish. Really go to a lab if you need huge or go to xpedex and tell them what you want. They will overwhelm you with options.
As for the neg/pos thing it wouldn't happen with color unless you are using lcd screens. Its a result of reflectance of substrate and angle of light striking the surface. So if you are parallel to the trans it wont under normal circumstances ever be negative. You can make it do it if you choose.
On Apr 28, 2014 7:59 AM, "YGelmanPhoto" <ygelmanphoto@xxxxxxxxx> wrote:
I'm still in my pj's here, but to make the digital negative even the stuff for making overhead transparencies will work. For that, just run them through a copy machine.
On Mon, Apr 28, 2014 at 7:45 AM, Jonathan Turner <pictures@xxxxxxxxxxxxxxxxxxx> wrote:Hi,
thanks, that's really helpful actually. It's interesting about the positive/negative effect, I wouldn't have thought about it working like that, kind of just assumed you'd be able to print a positive image straight onto the translucent media, whichever that is. I'll do some tests and see.
By the way, I hadn't heard of palldian printing, so just googled it...looks really beautiful! What media do you print onto to make your digital negative?
Cheers,
Jonathan
--
Jonathan Turner, Photographer e: pictures@xxxxxxxxxxxxxxxxxxx t: 07796 470573 w: www.jonathan-turner.com
On 28/04/2014 12:00, YGelmanPhoto wrote:
Sounds good to me. You can print on the same stuff we use to make digital negatives when we do palladium printing. One side has coating to adhere the printer ink. You would just mount the negative on the window; no one will be looking at it from outside, and it will be a positive from inside the greenhouse. Sticking it on the glass will need some kind of tape/adhesive.
Another method, needing extra steps, is then to transfer the image onto any other rigid material. There are many transfer techniques; do an online video search.
But I just had a thought. When I described my experience with the negative/positive effect, it was black and white. So light either came in or was blocked, or in between. But color? Either get some other advice or just do a test yourself. I have a hunch -- but that won't do.
On Mon, Apr 28, 2014 at 3:17 AM, Jonathan Turner <pictures@xxxxxxxxxxxxxxxxxxx> wrote:
Hi,
So to explain it with a little more context, the idea is to display images taken in an allotment, as a 'pop up' exhibition (on the allotment where the pictures were made...). That means the exhibition needs to be weather proof, so after having thought about ways to do this (printing as vinyl banners etc) I had this idea of displaying them in a greenhouse. I liked the idea as it seemed appropriate to the subject matter.
So, I wondered if I could print the images onto some kind of translucent surface which could be stuck onto the windows of the greenhouse. Initially I thought of just printing inkjet onto acetate, then I thought about duratrans. I also wondered if it would be possible to print onto some kind of clear vinyl that would be self adhesive so that I could easily stick them to the window panes of the greenhouse. Size of the panes could range between 8 inches to 23 inch square, depending on the kind of greenhouse.
I imagined the greenhouse to work as a giant lightbox (at least from inside, not sure whether it would work from both sides). Sounds like a slightly crazy idea and not completely sure it would work, but interested to know if anyone has prior experience.
Thanks,Jonathan
