Really good lens? Really good CCD? It might be better than your run of the mill Blackberry, but it's not that great.
Specifications aren't everything, but the iPhone CCD is a 5 MP panel that's 1/3.2" diagonal. Not to look far, the Nokia N8 has an 12 MP CCD at 1/1.83" (resolution too high, but hard to argue with the sensor size). Point and shoot standalone cameras are normally around 1/2.5"; 1/1.7" is considered high end (Canon S95/G12 etc).
The iPhone lens is 3.85 mm f/2.8; the N8 is 5.4mm f/2.8; the wide end of the S95 is 6.0 mm f/2.0.
(Higher diagonal sensor sizes are better; lower lens f-numbers are generally better.)
This is pretty pointless, as final image quality depends on a lot more than just the sensor, especially on a phone, but a better measurement of sensor quality is pixel size or density, as bigger pixels gather more light.
Pixel density is calculated as a ratio of resolution to area, is usually expressed in MP/cm^2 and lower is better.
iPhone 4: 5MP, 1/1.7", area 0.15cm^2, density 32MP/cm^2
N8: 12MP, 1/1.83", area 0.38cm^2, density 31MP/cm^2
As for the lens, I prefer wide angles, but again the raw numbers don't tell you much.
Comments
Really good lens? Really good CCD? It might be better than your run of the mill Blackberry, but it's not that great.
Specifications aren't everything, but the iPhone CCD is a 5 MP panel that's 1/3.2" diagonal. Not to look far, the Nokia N8 has an 12 MP CCD at 1/1.83" (resolution too high, but hard to argue with the sensor size). Point and shoot standalone cameras are normally around 1/2.5"; 1/1.7" is considered high end (Canon S95/G12 etc).
The iPhone lens is 3.85 mm f/2.8; the N8 is 5.4mm f/2.8; the wide end of the S95 is 6.0 mm f/2.0.
(Higher diagonal sensor sizes are better; lower lens f-numbers are generally better.)
This is pretty pointless, as final image quality depends on a lot more than just the sensor, especially on a phone, but a better measurement of sensor quality is pixel size or density, as bigger pixels gather more light.
Pixel density is calculated as a ratio of resolution to area, is usually expressed in MP/cm^2 and lower is better.
As for the lens, I prefer wide angles, but again the raw numbers don't tell you much.So the N8 has the same pixel density, twice the amount of pixels, and the iPhone is the one with the really good CCD, got it.
I didn't say that.
Yup. computator did.