Zoom lenses "drift" out of focus when tilted
My 12-24 and 70-200 are not activating the shutter after autofocusing when angled up or down. Usually fine if horizontal. This occurs with both my camera bodies. If I "manual focus override" to get sometimes an imperceptible improvement in focus the shutter will fire. If I use manual focus, everything is fine.
Nikon told me it is because the focus is "drifting" out of focus when not horizontal so the camera body won't fire when out of focus.
Does anyone else have experience with this problem?
#1. "RE: Zoom lenses "drift" out of focus when tilted" | In response to Reply # 0nrothschild Registered since 25th Jul 2004Mon 20-Nov-06 12:30 PM
Maybe I am missing something because your question does not make sense. If your camera will not fire, it is because you are shooting a release priority mode and using AF-On (not the shutter button) to focus. If you focus on something and then tilt the camera, the AF sensor is now pointed at something else, and that something else, unless it is a vertical wall, is at some other distance. Even if you were shooting a vertical wall, if you tilt the camera, the distance usually does change slightly (think about the 3 sides of a triangle).
my Nikonians gallery.
#2. "RE: Zoom lenses "drift" out of focus when tilted" | In response to Reply # 1sullins Registered since 14th Dec 2004Mon 20-Nov-06 12:37 PM
The way it occurs is if I autofocus on the top of a hill at 45 degrees above horizontal, it will focus but will not activate the shutter. If I keep the focus by keeping the shutter partially pressed and shift to manual focus it will fire. It will also fire if I focus in autofocus and move the focus with manual over ride while still depressing the shutter button half way.
Does that make sense?
#3. "RE: Zoom lenses "drift" out of focus when tilted" | In response to Reply # 2nrothschild Registered since 25th Jul 2004Mon 20-Nov-06 02:25 PM
If I understand you correctly, you are focusing, then delaying some short period of time, then trying to fire the shutter, without moving the lens. The key is that you are not moving the lens, and with that your initial post makes more sense
I guess the affect is similar to having the zoom creep between focus and shutter press, although I'm NOT suggesting that is the cause, just trying to relate to the symptom. I have never had an issue like that with either of those lenses and I use them both, particularly the 70-200. However, I use AF-C most of the time, so I would not even see it. Hopefully someone else can help.
I think it is strange that you have this problem with not one, but TWO lenses. I have never seen a similar complaint on the various forums. Has anyone else? If I have a problem with one lens, it could be me or the lens. Maybe the body, not impossible but probably unlikely if the body works well with other lenses. If I had the same problem (any problem) with two lenses, I would blame me or the lens. That's just applying a logical problem resolution methodology to a system I might not totally understand and I doubt any of us really understands what is going on now days in these complex camera systems
my Nikonians gallery.
#4. "RE: Zoom lenses "drift" out of focus when tilted" | In response to Reply # 0
>Nikon told me it is because the focus is "drifting" out of
>focus when not horizontal so the camera body won't fire when
>out of focus.
Sounds like service lab ##### to me.
The 12-24 and the 70-200 exhibit no lens/focus creep when pointed up/downwards...