What is CCD and what size is better?
- Thread starter myCharlie
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Steve Laramie
Veteran
I beleive the bigger the ccd the more color is stored in the ccd. correct me if im wrong but i think bigger is better
William_Robinette
Shallow Member
Bigger is normally better as they can have more pixels/bigger pixels for increased dynamic range/color rendition/noise level.
Search this site and you will find loads of discussions on these topics including CMOS.
The bigger the chips the more the price for a camera system.
Search this site and you will find loads of discussions on these topics including CMOS.
The bigger the chips the more the price for a camera system.
Barry_Green
Moderator
As a general rule, all other things being equal, bigger = better. Bigger sensors allow for bigger pixels, and bigger pixels drink in more light, so you get better sensitivity (brighter pictures in lower light conditions) and better dynamic range, and lower noise.
But you have to be careful to compare equivalent to equivalent; a 2007 camera with a 1/3" CCD may very well outperform a 1995 camera with 2/3" CCDs!
As for CMOS, CMOS is a promising new technology that is only recently being adapted to video imaging. It's an alternative to CCD. Existing CMOS cameras show great performance in bright light but are usually notably less sensitive in lower light conditions. CMOS offers one big advantage in that they are completely resistant to vertical smear (an artifact that can affect CCD sensors). But CMOS may include its own set of challenges too; most notably the "rolling shutter" effect that can cause vertical shearing or wobbling or other types of image distortion on fast-moving subjects or shots that involve vibration.
You can't really say one is inherently "better" than the other, unless you're talking about specific capabilities (i.e., CMOS is "better" than CCD when it comes to vertical smear, yes). But overall? It all has to be weighed in context with price, overall image performance, etc.
But you have to be careful to compare equivalent to equivalent; a 2007 camera with a 1/3" CCD may very well outperform a 1995 camera with 2/3" CCDs!
As for CMOS, CMOS is a promising new technology that is only recently being adapted to video imaging. It's an alternative to CCD. Existing CMOS cameras show great performance in bright light but are usually notably less sensitive in lower light conditions. CMOS offers one big advantage in that they are completely resistant to vertical smear (an artifact that can affect CCD sensors). But CMOS may include its own set of challenges too; most notably the "rolling shutter" effect that can cause vertical shearing or wobbling or other types of image distortion on fast-moving subjects or shots that involve vibration.
You can't really say one is inherently "better" than the other, unless you're talking about specific capabilities (i.e., CMOS is "better" than CCD when it comes to vertical smear, yes). But overall? It all has to be weighed in context with price, overall image performance, etc.
