Go Back   Steve's Digicams Forums > Digicam Help > General Discussion

Thread Tools Search this Thread
Old Oct 15, 2004, 7:57 AM   #1
SalBolzano's Avatar
Join Date: Jul 2004
Posts: 86

It gets confusing.... The new Casio Z55 - CCD size is still 1/2.5 but now it has a 5 megapix.... Steve rates the camera very highly, but in other camera reviews he was saying that the small CCD packing more megapixels is a bad idea... So, any ideas on this subject ? I know that if the CCD would be 1/1.8 it would be better for a 5 megapix. camera, but what do you think? Maybe STEVE can shed some light and help ????
SalBolzano is offline   Reply With Quote
Sponsored Links
Old Oct 15, 2004, 9:06 AM   #2
Senior Member
Join Date: Jan 2004
Posts: 2,483

Times change, progress occurs, My first camera had a .3 MP chip...

DBB is offline   Reply With Quote
Old Oct 15, 2004, 9:21 AM   #3
Senior Member
Mikefellh's Avatar
Join Date: May 2004
Location: Toronto, ON, Canada
Posts: 1,707

This has been written about here MANY times...the basics are more pixels on the same sized CCD means more heat, and more heat means more noise and hot pixels, and heat is generated with longer exposures.


Newer cameras can have better algorhthms for dealing with noise and other impurities. Newer cameras do take better quality pictures than cameras of a few years ago (the megapixel issue notwithstanding).

The big reason why manufacturers don't want to change the size of the CCDs is so they can save money and don't have to change the optics...a 2mp 1/2.7" CCD Olympus C-700 and a 4mp 1/2.5" CCD C-750 are both considered 38-380mm cameras (35mm equivalent) but their ACTUAL focal lengths are 5.9-59mm for the C-700, and 6.3-63mm for the C-750...seems like a small difference, but it meant starting from scratch on the design and different parts needed to be manufactured.
Mikefellh is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 2:20 AM.