Re: Paper negatives- Ink Selection
> Exposure time does not depend on the printer, ink or color of the
> negative—it merely depends on the substrate you are printing
> on—providing all other variables are equal.
Interestingly, when I did did my oiled paper negative test (Epson Photo Quality inkjet paper oiled with baby oil), I used the exact same exposure as when I use Arista OHP (with the same printer settings, curve, etc). This is just anecdotal, because my tests are not very scientific, and doesn't disprove what you are saying, but still, I was surprised.
And since the subject of this thread is Ink Selection, I'll add that I use the "color" setting, which on my printer is all color inks plus the black cartridge. I started out using a color chosen using Michael Koch-Schulte's method (it was something about the blk ink having a different density than the color inks, so the curve would be uneven in areas that used more black), but I started using the all color simply because I can see the image on the negative better so it makes registration easier for me.