>Hi All, > >Don't know if anybody else has had a similar experience, but >I'm having problems using older AI lenses with my D300s. Can you post a picture of both the front and back of your "AI" lens?
>When taking a picture I'm getting a "jolt" coming >back through the lens body. This happens most of the time, but >not always! > >It results in the picture being blurred, giving exactly the >same results as camera shake. > >It does the same with 2 different 50mm AI lenses. Both lenses >operate fine on my F2/F3/F4 with no "jolting" coming >back through the lens. > >I can only suspect it's a fault with the D300s, but don't know >what the cause is. > >Can anybody help? > >Regards, Tony
What exactly do you mean by "jolting"? The aperture actuator lever in the camera that contacts the tab on the lens is the only mechanical connection going on. Perhaps the lever is misaligned/bent, etc. and striking something it shouldn't be. This should happen with most lenses, however.
Tony, I get a little jolt with my AI 50mm f1.4 on the D300 that I don't get with the AF 50mm f1.4D. Maybe the stop down lever spring is stronger on the AI lens and you get that little extra feedback. I always hold my camera with both hands and never noticed it. i also don't think I ever got blurry pictures because of it. We might have the same condition .. or not. I get somewhat (less) the same feeling on my F3/T but nothing on the F4. Of course the F4 is a brick and it damps out everything.
Fri 30-Aug-13 02:42 AM | edited Fri 30-Aug-13 02:52 AM by D2xer
Hi Tony - I used to experience exactly what you're describing, with my D2x, when used with one or two AI or AIS lenses in particular. I can't remember which lenses now, but the upshot is that the camera's aperture lever mechanism started playing up and eventually stopped working.
I can't help thinking that this 'impact' (which to me felt like the camera's stop-down mechanism driving the lens's aperture lever too-hard into the lever's end-of-travel stop) had something to do with the failure.
Now that you remind me, I should double-check all my AI/AIS lenses on my 'new' D700 and D300.
If I were you, I'd not use the lenses in question - assuming the camera is OK and doesn't do this with your other lenses. Good luck!