KEH has quite a few of those lenses floating around most likely at this point. There's not a great demand for them. I'd just send it back in if it were me.
On Thu, Jun 4, 2015 at 6:50 PM, Zos Xavius <[email protected]> wrote: > No need to mount the lens. If you toggle the aperture lever does the > iris open? Smoothly? If not, the lens is at fault. Also check the > lever to see if it has been bent or anything. It can be physically > bent past the point of catching on the aperture lever the camera has > built in. If the lever seems fine then its possible you might not be > turning it enough, but I'm kind of assuming you have mounted it > correctly. > > On Thu, Jun 4, 2015 at 6:46 PM, Eric Featherstone > <[email protected]> wrote: >> On 4 June 2015 at 23:35, Eric Weir <[email protected]> wrote: >>> Picked up my 16-45/4 from KEH today, put it on the camera, and I’m totally >>> baffled. When I look through the viewfinder it’s very dark, almost black. >>> With the lens wide open I can barely make out objects in the field of view >>> only when pointed directly at a strong light source. And I can’t actuate >>> the shutter. Replacing the 16-45 with a 35/2.4 I have absolutely no problem. >>> >>> I feel really stupid, but i have no idea what’s going on. Any clues? >> >> 1) Is it mounted properly? Turned all the way on the mount as far as it will >> go. >> 2) Simply faulty? >> >> They are, I think, the only two possibilities. >> >> The default for a Pentax lens (i.e. when it's off the camera) is for >> the aperture to close down to the smallest setting. As you mount the >> lens on the camera the little metal lever (the "stop-down" coupler) >> engages with the mount and opens the aperture fully. If the lens isn't >> rotated all the way when mounting then the aperture won't be fully >> opened up. You can see this happening if you take the lens cap off >> before mounting. See how the two lenses compare in that regard. >> >> -- >> Eric >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
