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[OM] Re: Why do digital cameras have a shutter?

Subject: [OM] Re: Why do digital cameras have a shutter?
From: Winsor Crosby <wincros@xxxxxxxxxxx>
Date: Wed, 9 Feb 2005 15:11:18 -0800
Off. I meant turned off



Winsor
Long Beach, California, USA
On Feb 9, 2005, at 3:00 PM, Winsor Crosby wrote:

>
> This may reinforce his point, but actually the sensor in many cameras
> participate in the shutter process. The mechanical shutter in a D70 for
> instance just opens and the sensor shuts down at higher speeds which
> allows the higher sync speed for flash. And I am not certain, but I
> think that all the digicams are really shutterless. They are completely
> silent when the little beeper is turned OFF. Remember the lens aperture
> has to be open for the LCD to operate and and to record the picture.
> The LCD blanks when the sensor is switched to record mode for the
> duration of the exposure and writing it to memory.
>
>
>
> Winsor
> Long Beach, California, USA
> On Feb 9, 2005, at 12:15 PM, Barry B. Bean wrote:
>
>>
>> In considering the move to digital, I ran across an editorial that
>> made a pretty convincing argument that the current crop of digitals
>> were still essentially modified
>> film cameras. for instance, the editorial pointed out that there' no
>> reason a digital camera needs a shutter, and made the argument that
>> there was no reason a
>> quality LCD couldn't give a better image than the mirrors we're used
>> to in our SLRs.
>>
>> So - is anyone working on a digital camera that's digital from the
>> ground up?
>>
>> --
>> Barry B. Bean
>> Bean & Bean Cotton Company
>> Peach Orchard, MO
>> www.beancotton.com
>> www.beanformissouri.org
>>
>>
>>
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