I just received a Nikkor 55 mm. f/2.8 AIS "micro" that i "won" on E-bay and had a try... The lens itself goes only to 0.5:1, so "half life-size" on the CCD, but it's a jewel... The first photo has been shot with the lens on-camera. The RED rectangle shows the part that have been focused on to take the last two pics. Then i put the camera on my PB-4 bellow, wich i extended to the maximum, and put the lens on, normally. Lastly, i just screwed a BR-2A reversing ring on the filter thread of the lens, and then put the reversed lens on the bellow (still extended to the maximum). Of course i had to re-focus. All the pics are all UNCROPPED, that is "full frame", and only resized for Web ! I beleive that, with the lens reversed and the bellow fully extended, one must reach about 4:1... of course, it needs a lot of light, but all three shots have been taken at 1:125 @ f/8, with two flashes (one on each side, plus the camera's built-in one to trigger them) ! ...now i only have to find some very small and interesting subjects to shoot ! Cheers, J-P.