I've never tried stacking 2 lens adapters before and I was wondering if anyone here has done it with their m4/3 camera. I've got some Bronica ETRS lenses, the 40mm, 75mm and 150mm and right now Fotodiox has a 25% off sale for this weekend by entering in a discount code. Well I was thinking of getting the ETRS-EOS lens adapter and then getting an EOS-m4/3 adapter to use the lenses. I just wonder if it would be worth it since I'll be paying for both adapters and also if using the ETRS lenses would get me anything that I don't get right now for my other adapted lenses, most of them being Canon FD and some M42 lenses. Plus wouldn't be the crop factor be more than 2X since these are of course medium format lenses.