I just got this lens on an eBay auction. I am pretty ignorant of such things, but I think it is a 35-70mm
zoom lens. However, I do not see a dial on the lens that allows me to change the focal length. In fact the only focal length is marked on the lens side "70mm" and "macro" in green type. (See the first photo below, all the way on the left is "70mm" in green).
I bought this lens for a Pentax digital SLR model K100d. When I mount the lens to the camera, I use the Manual Focus setting on the camera. Other than no zoom, the lens does seem to work fine, and has taken a few nice photos. But if there's a zoom feature I sure can't get it to work! It acts more like a fixed focal length, non-zoom 70mm lens.
Any ideas? My other zoom lenses have a dial on the lens where I can zoom in or out to frame the photo like I want. This does not. Is the "macro" something that indicates there really is no zoom capability? I can focus the lens fine using the outer most ring, but that is only changing the focus. The next ring in is the f stop ring, but I am not using that as I am using the camera's auto-exposure.
Thanks to you lens detectives out there......
Sorry about the clumbsy links below; I could not get the "Insert Image" to work properly....must be a setting I haven't done yet on this forum?
SMC Pentax-A 1:3.5-4.5 35-70 - TOP pictures from friends & fun photos on webshots Pentax 35-70 zoom macro - Side pictures from friends & fun photos on webshots