I have been shooting a D200 for a little over two years and think it is a great camera. As a 65 year old retired senior citizen, I will not be up grading for awhile.
Sometimes my nature photography includes birds in flight and other moving subjects.
I am having a hard time understanding "lock on" and the optional focusing options the D200 has. Any guidance and insight as to the thought process for this type of photography will be appreciated.
#1. "RE: D200 Focus Lock on" | In response to Reply # 0Beemer2 Nikonian since 07th Dec 2006Mon 26-Oct-09 08:40 PM | edited Tue 27-Oct-09 09:37 AM by Beemer2
If you have your D200 set on Single Focus mode and your shutter release set to "focus" then the shutter will not fire until you half press the release and the lens has focussed on the focus point you chose. After it focusses the lens stops seeking focus and focus is said to be "locked".
If, with the shutter release still half pressed, the subject is moving such that it, or the camera viewpoint, moves away from that focus point then the shutter will fire when the release is fully depressed. The result could be that the subject is not then in focus, e.g. it could have been moving towards or away from the camera.
With moving subjects it is usually more beneficial to select the Continuous Focus mode. As long as the release button is held half down the lens will continue to focus without locking. Again if the subject moves away from the focus point the image will be out of focus.
To help eliminate this problem whilst using Continuous Focus mode the camera has a dynamic focus mode that makes more than one focus point active. If the subject moves away from the initial focus point then the next adjacent focus point will become the one that is used to drive the lens to focus.
Moreover the camera's processor is able to monitor the rate that the subject is moving from one focus point to the next and to drive the lens focus further ahead so that when the shutter is released the subject will be in focus evewn although it has not yet reached the next focus point.
I hope this helps until others offer a better explanation.
If only Mozart had had a camera
#2. "RE: D200 Focus Lock on" | In response to Reply # 0ColColt Nikonian since 19th Aug 2008Tue 27-Oct-09 08:04 AM
> As a 65 year old retired senior
>citizen, I will not be up grading for awhile.
No problem there, Dick. What we buy now won't wear out anyway!
My goal in life is to be the person my dog already thinks I am.