Re: 3 dSLR's from Oly this spring?
The sensor size issue is a red herring as the vertical dimension of a Four Thirds sensor is very close to the APS-C sensors in other DSLRs. The area ratio is magnified by the fact that the other sensors have a wider aspect ratio. But in any case, it's the photosite size that counts and the sizes of these on Four Thirds sensors are in the same ball bark as rival DSLR sensors of similar resolution.
Yes, you're right Ian.. but so we get equal 'noise' from both formats, the potosites should be the same size, right?
Whch would mean the 4/3rds camera will always be 1 or 2 MP behind that of a 3:2 sensor.. simply bcos the 3:2 camera has more pixels in the longer sides of that format.
So 4/3 will always have:
a, worse 'noise' given the same pixel count as 3:2
b, Fewer pixels but with the same noise.
Such is life!
The sensitivity of Four Thirds sensors is way ahead of any compact or bridge-type digital camera.
Yes, but that comparison also applies to the bigger formats to 4/3rds! What goes around comes around! LOL
That said, until the E-330 and the E-400, Four Thirds DSLRs did suffer from disproportionately noisy images. I believe this was because less noise reduction was applied and the image processing sub-system in earlier cameras was not as advanced as some of the rivals. The E-330 and, especially, the E-400, have gone some way to putting that right.
Ian
I disagree.. (a bit)... I think 4/3rds has a rep as being as 'noisy' as they used the same or more pixels than APS (3:2).
My humble opinion is Oly should accept this MP quantity disdvantage it has with APS (3:2) and just produce camera that always have the same pixel size as competition. [I'm all for image quality and I'd hoped the company that produced the 'only 5MP' E1, but with great IQ, would be of a similar POV.]
Instead, they appear to have taken the lack of sales from the E1 as caused by it's MP count and then set this as their main criteria in a camera. Ever since the E1 we've mainly had equal or bigger MP counts than the competition (the exception being E330).
Oly seems to be stuck between a rock and a hard place. They can't 'educate' the punters to expect the same IQ but with less MP as that would tip them off to the inherrent disadvantage of 4/3rds.
Instead, they match MP counts with the 3:2 formats and that leads to smaller, noisier sensors. There's all pain with little gain in 4/3-land.
As I said earlier, they need to make this disadvatage into an advantage. The only area I can see them doing this is in a telephoto/sports/wildlife camera with excellent IQ, fast frame rates, a decent MP count and noise performace at the higher ISOs.
hereth endeth the sermon.
The sensor size issue is a red herring as the vertical dimension of a Four Thirds sensor is very close to the APS-C sensors in other DSLRs. The area ratio is magnified by the fact that the other sensors have a wider aspect ratio. But in any case, it's the photosite size that counts and the sizes of these on Four Thirds sensors are in the same ball bark as rival DSLR sensors of similar resolution.
Yes, you're right Ian.. but so we get equal 'noise' from both formats, the potosites should be the same size, right?
Whch would mean the 4/3rds camera will always be 1 or 2 MP behind that of a 3:2 sensor.. simply bcos the 3:2 camera has more pixels in the longer sides of that format.
So 4/3 will always have:
a, worse 'noise' given the same pixel count as 3:2
b, Fewer pixels but with the same noise.
Such is life!
The sensitivity of Four Thirds sensors is way ahead of any compact or bridge-type digital camera.
Yes, but that comparison also applies to the bigger formats to 4/3rds! What goes around comes around! LOL
That said, until the E-330 and the E-400, Four Thirds DSLRs did suffer from disproportionately noisy images. I believe this was because less noise reduction was applied and the image processing sub-system in earlier cameras was not as advanced as some of the rivals. The E-330 and, especially, the E-400, have gone some way to putting that right.
Ian
I disagree.. (a bit)... I think 4/3rds has a rep as being as 'noisy' as they used the same or more pixels than APS (3:2).
My humble opinion is Oly should accept this MP quantity disdvantage it has with APS (3:2) and just produce camera that always have the same pixel size as competition. [I'm all for image quality and I'd hoped the company that produced the 'only 5MP' E1, but with great IQ, would be of a similar POV.]
Instead, they appear to have taken the lack of sales from the E1 as caused by it's MP count and then set this as their main criteria in a camera. Ever since the E1 we've mainly had equal or bigger MP counts than the competition (the exception being E330).
Oly seems to be stuck between a rock and a hard place. They can't 'educate' the punters to expect the same IQ but with less MP as that would tip them off to the inherrent disadvantage of 4/3rds.
Instead, they match MP counts with the 3:2 formats and that leads to smaller, noisier sensors. There's all pain with little gain in 4/3-land.
As I said earlier, they need to make this disadvatage into an advantage. The only area I can see them doing this is in a telephoto/sports/wildlife camera with excellent IQ, fast frame rates, a decent MP count and noise performace at the higher ISOs.
hereth endeth the sermon.

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