I mentioned temperature since my A1 gets noticeably warm to the touch
with lots of shooting over several hours and the screen and anti-shake
left on continuously. I don't know what's going on at the sensor but
the CF card gets much hotter than the camera body. I would guesstimate
that the CF card is at maybe 110-120 degrees F (43-49 C) after the
camera has been on continuously for 3 hours. Since I have the optional
dual battery grip I can run for a long time with everything powered up.
But I've never compared the exposures from a cold vs. hot camera and I
rarely shoot at anything other than ISO 100 since the noise gets bad
very fast at higher ISOs.
Chuck Norcutt
Moose wrote:
> C.H.Ling wrote:
>
>
>>Having use digital camera since year 2000, I have took many many shots in
>>different lighting conditions and shutter speeds, I never found speed is a
>>factor for noise unless for long exposure. And this is also the first time I
>>heard about this.
>>
>>
>
> I've certainly never seen anything like that either. Can't think of any
> techinal reason why it would be so for anything under a second.
>
> On the other hand, whoever mentioned temperture could well have touched
> on something significant.
>
> Moose
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