I'll say 95% sure on the Mynolta and 99% sure on the Canyon.
The Mynolta's power switch is a press to turn on/off button which must
be held depressed for a few seconds to change the on/off state. The
camera will enter a sleep mode in 1, 3, 5 or 10 minutes if there is no
state change or the shutter button is not depressed at least half way.
This powers down all the electronics *except* the status display on the
top of the camera. If no changes are made in 30 minutes the camera
powers down completely (including the status display) and you must press
the main power switch to get it back on.
The fact that the main switch has to be depressed for a few seconds
might mean that there's a low power monitoring circuit active but not
necessarily.
The Canyon has a 3 position lever on the back which has an OFF, ON and a
"control dial active" position. When the switch is in the OFF position
(according to the manual) "the camera does not operate" and it appears
to be completely dead. When it's in the ON position it operates much as
the Mynolta with programmable sleep times of 1, 2, 4, 8, 15 and 30
minutes. However, one can also disable the sleep mode. If it does go
into sleep mode it can be started by pressing the shutter button or a
few other (but not all) controls. Also, when in the ON position, the
main control dial on the back of the camera does not operate for some
control states. When the power switch is in the third position all
functions of the main control dial are operative.
When you first turn the camera on you normally turn it to the third
position, make your settings and then optionally return it to the ON
(second) position. For example, if the camera is in aperture priority
mode, the front dial (operated by the index finger) controls the
aperture. If the switch is in the third position the main control dial
on the back then controls exposure compensation. If the switch is in
the ON position the main control dial is disabled so that you can't
accidentally change it. The Mynolta has no such interlock but would
also be much harder to change accidentally. Ergonomically, the little
Mynolta is superior on this and other points. The Canyon's front dial,
for example, is shutter speed if in shutter speed priority and aperture
if in aperture priority. The Mynolta can be programmed such that either
dial can be shutter or aperture and can always be in the same position
if that's what you want. On the Canyon I still sometimes turn the wrong
dial depending on the mode I'm in.
But I digress. When in the OFF position the Canyon appears to be
totally dead. And, unlike the Mynolta which will power itself off in 30
minutes of no activity the Canyon does no such thing. On many occasions
I've opened up the camera bag days or a week later and discovered the
camera is ready to go with a light press of the shutter button since
I've forgotten to turn the power switch to the OFF position. But a week
of that doesn't come anywhere near to draining the battery.
Chuck Norcutt
Wayne Harridge wrote:
>
>
>
>
>> Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
>>
>> Depends whether the camera has a true off switch. The later OM's did
>> not have an off switch. My Mynolta and Canyon digitals do.
>>
>
> So you're absolutely sure they draw no current when that switch is in the
> "off" position ?
>
> ...Wayne
>
> Wayne Harridge
>
> http://lrh.structuregraphs.com
>
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