Thanks.  You've answered many questions here, some of which I haven't asked yet.  
Aside from battery life, what are the advantages of the IFR CCD's?


Steven Desjardins
Department of Chemistry
Washington and Lee University
Lexington, VA 24450
(540) 458-8873
FAX: (540) 458-8878
[EMAIL PROTECTED]

>>> [EMAIL PROTECTED] 10/29/02 10:36AM >>>
Dear all,

Steve Desjardins wrote:

>Agreed.  My point of comparison is the  E-10 (you have this one too, 
>right?) and it eats rechargeable AA's at an alarming rate.  I almost always 
>got though one entire set when I go shooting.
>It really changes your outlook on batteries, just like a laptop.
>

E-10/E-20 is a completely different technology from D-SLRs like D100 or D1X.

The major power consumption in digital cameras come from their image sensor 
and the preview/review LCD at the camera back.

E-10/E-20, like other consumer DCs, use Interlaced CCD which is simpler and 
cheaper to manufacture.  These CCDs have very fast shooting rate, allowing 
you shoot 10-20 images continuously at 1 second.  That's why you can use the 
DC to shot short movies and turn on the LCD at the back at all time to 
review/preview the image.  Therefore, DCs based oon Interlaced CCD are 
battery-eaters.

On the other hand, D-SLRs like D100 use Interline Frame Readout CCDs which 
are complex and very expensive to manufacture.  These CCDs cannot record 
images in a continuous manner like the Interlaced CCD do and they needs 
mechanical shutters.  You cannot shot movies with D-SLRs or preview the 
image at the LCD.  All you can do is to review the image you have taken.  
Therefore, people using D-SLR would not continously turn on the LCD at the 
camera back in the way they do on consumer DCs.  This saves a lot of battery 
power.

Regards,

Henry Chu
29/10/2002

_________________________________________________________________
Unlimited Internet access -- and 2 months free!� Try MSN. 
http://resourcecenter.msn.com/access/plans/2monthsfree.asp 


Reply via email to