Archived posting to the Leica Users Group, 2002/07/31

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Subject: Re: [Leica] M7 shutter lag (or lack thereof?)
From: "Rei Shinozuka" <shino@panix.com>
Date: Wed, 31 Jul 2002 10:59:05 -0400 (EDT)

i'd think that 100ms shutter lag would not need any rigorous testing to
uncover; the user  would clearly perceive 2 distinct events: push-snap!
instead of puap!

to put into computer perspective, 100ms is about the same amount of time 
(for me at least) i take between pressing an releasing the mouse button on 
my workstation to push a button on a GUI.  pretty quick, but two distinctive 
actions in human time.

ButtonPress event, serial 21, synthetic NO, window 0x7c00001,
    root 0x37, subw 0x0, time 1629683662, (32,159), root:(457,334),
    state 0x20, button 1, same_screen YES

ButtonRelease event, serial 21, synthetic NO, window 0x7c00001,
    root 0x37, subw 0x0, time 1629683758, (32,159), root:(457,334),
    state 0x120, button 1, same_screen YES

~ $ bc
bc 1.03 (Aug 24, 94) Copyright (C) 1991, 1992 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'. 
1629683758-1629683662
96

- -rei


> From: Peter Klein <pklein@2alpha.net>
> 
> "J. Gilbert Plantinga" <gilplant@hvc.rr.com> wrote:
> 
> >> On Monday, July 29, 2002, at 08:38  PM, Peter Klein wrote:
> >> 100-120ms (1/10) sec shutter lag with the M7
> 
> > Where did you get this information? I certainly haven't noticed any 
> > lag.
> 
> Gilbert:  I'm going to have to take back the 100 ms figure for the M7
> shutter lag.


- -- 
Rei Shinozuka shino@panix.com
Ridgewood, New Jersey

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