Posted this on the polaroid thread but thought someone might want to see it here.
Tonight I tried for the first time clearing the back of the negative with bleach as has been discussed online quite a bit. Results are pretty impressive. Negative is actually wicked sharp. Colors are good. Kinda hard to control but good. Other negatives with colors that were not as good in the positive were way, way off in the negative. This was really quite easy. I saw it demonstrated on youtube a while ago, not sure where but if you search there are multiple examples.
I used toilet bleach that's kind of a gel, it sits on the back of the picture better. Stole that from somewhere.
Accordion by Paul McEvoy, on Flickr
Here's the positive:
Uncle Rob's Accordion by Paul McEvoy, on Flickr