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DX-2G 0.1 sec shutter lag time: from what moment it's measured?

Discussion in 'Sea&Sea' started by A_kaza, Aug 26, 2011.

  1. A_kaza

    A_kaza Angel Fish

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    Hello,

    One of the reasons I decided to buy the DX-2G was "0.1 sec shutter lag time" advertised.
    At first I used to shoot in autofocus mode and when I noticed the actual shutter lag is MUCH
    longer I attributed it to the autofocus action. In one of the "worst cases" (attempting a macro
    shot of a blenny while it's wildly manuevering) the apparent delay was few seconds.
    After that I switched off the autofocus, set a constant focusing distance of 1m (like I used
    to shoot most of the time during my 13 years of Morotmarine-II-EX usage) and kept
    the moving object at about 1m distance until it "turned its better side to me" at which point
    I took the shot. In macro mode I set the manual focus distance at 20cm and employed the
    same tactic. But when I attempted to photograph a macro of a moray which kept
    opening and closing the mouth with a period of about 1.5 -2 seconds, I noticed that I still
    have a significant lag: I wanted to shoot it with the mouth open but looking at the photo taken saw
    the mouth closed, which means - even without AF the delay was over 0.5 sec. I eventually
    had to "predict" the moray mouth position: I pressed the shutter release lever when the mouth
    had been closed so that by the time actual shot is taken, the mouth will be open. It worked.

    So, my questions are:

    1) From which point of time the advertised "0.1 sec shutter lag" is measured when the
    camera is in the manual focus mode?

    2) What is the precise timing of events inside the camera (in manual focus mode) starting from the pressing
    of the shutter release lever (both halves of a press) and up to the actual image being taken?

    3) Same question as above but for auto-focus mode?

    Thanks in advance,
    A_kaza
     

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