Hello George, You wrote: >My friend uses it on an FG and hasn't had any trouble with >the lens, in fact he really loves the lens. I realize that his FG doesn't >use the same exposure system or electronics as the 6006 so he wouldn't >notice the trouble. Yes, I do also think so. >I'm going to test a new one to see if the trouble shows up on their >lens. Wait a minute! A thought just occurred to me. This is a variable >aperture lens. Does that affect the entire aperture range or just the >maximum aperture? Bingo!!!!! Yes, you took the words from my mouth. I also have a F601 and I love it. The display in your camera will show the actual aperture value of the lens, and it's quite accurate. That's the main problem of a variable aperture zoom: If you choose f:3.5 in the lens when in 28mm, when you zoom it to 70mm the actual aperture will be f:4.5, and that's why the lens is marked 28-70 f:3.5-4.5. You can be sure that's the problem; just check it in your camera viewfinder. I don't know that lense, but it may have a mark showing that difference in the aperture ring marks. In Nikon lenses, there is a white mark that you use to set the aperture. But just beside the white mark is an orange one: that's the mark for the aperture when the zoom is at its long edge, say 70 mm in your case. Most lenses have those markings, for people using manual cameras to adjust their settings properly. I hope that this helps. If you want any other tips, just write me. nelson kao
