there's no problem with the pc120. I used to fly a pc110. Now a use a pc120, and it is true with both cams: the wideangle makes the difference. the lens on both cams take excellent pictures of the hardest openings, but using the kenko 0.42 has this effect sometimes, but again, only at hard openings. however, when using a sony 0.7 w/a it never occured. if someone is interested, i have a relatively small slider, so i needed to learn packing it accordingly. till then, I gathered some useful info to Neil
