About the vignetting I observe on the Nikkor 28-105 lens: Ruckdee wrote: >>>>>>> No, my 28-105 doesn't vignette with just one UV filter on. It does vignette a bit at the corners when I stack up another Hoya polarizer. I haven't tried UV + Soft on yet. Will do so this weekend. <<<<<<< Art Wrote: >>>>>>> I just don't see it. I checked this lens at all focal lengths, minimum and maximum apertures, all focus distances and even in micro range and I saw no vignetting at all. My lens also did not come with the disclaimer about vignetting in micro range. What are others experience with this lens, vignetting or no? <<<<<<< I can see it at the pictures I shooted at wide angles and f/3,5. Which method did you use to check the lens? I can see some vignetting without any filter at all focals with the following method I found on a FAQ: <<Aim the camera at a small bright spot surrounded by a fairly darck background (a distant street light at night would serve well). Deliberaty defocus the image some and observe the shape of the spot, particulary in the corners. If it is round, there is no vignetting. If it looks like the intersection of some arcs (i.e. like an American football), then there is vignetting. Note that near top of the image the top of the circle may get clipped a bit. This is because in many cameras some light (from the top part of the image) misses the bottom of the mirror. This affects only the viewfinder, not the film. You can use the depth of field preview (if your camera has it) to determine the f-stop at which the spot becomes round. With wide-angle lenses the circle of confusion may not get large enough for this technique to be useful.>> Although I think that vignetting applies to all lenses (up to some degree), I suspected that vignetting is especially sensitive with this lens. I had a confirmation with the last Chasseur d'images magazine where was published a test of this lens: they measured a maximum of 0,7 f-stop vignetting at 28mm, which is quite important I think. Thierry
