what the highest megapixel camera you can buy image
No
except that the images will take a lot of space on my memory card, will there be other disadvantages to having a 36 megapixel camera sensor?
Answer
There are lots of reasons to use fewer Mp, the more pixels you cram onto a small sensor the lower the dynamic range (skies will burn out to white and the dark shadows will block out to black more readily and record next to no detail), the noisier the images will be, the worse the low light performance will get, in extreme cases you can get the sensor out resolving the lenses. The pixel density figure is every bit as important as the mp count with camera sensors.
My Pentax Q has this sensor out resolving lenses problem, 12Mp crammed onto a very small sensor. because of diffraction you can't use any aperture smaller than f8 on a Pentax Q and you need high quality lenses to get decent images.
The only advantage to lots of Mp is you can print bigger. The high pixel count sensor WILL record more detail, but you can only use that higher resolution in large prints, by which I mean prints measured in Feet rather than Inches, all other outputs need, and can only use, far less.
The computer monitor your using to check your images and edit them will only have a resolution of some 1900 X1280 pixels, that's only a 2.3Mp image, all the extra resolution recorded by your 36Mp sensor is just not shown and is ignored, the high resolution cannot be displayed by the average monitor. Even a very expensive 16bit, high resolution monitor, which cost more than a small car to buy, can only display a 6Mp image!
You need more resolution for large prints, but even an A3 print only needs 12.3Mp any more than that and the extra data is just dumped, not needed, the printer can't reproduce it! Which is why most DSLR cameras have a sensor around 12Mp, it's the best compromise of pixel density and resolution. You can print an image from a 12mp camera much larger than this A3 size and still get good results.
Most cameras are bought by people that know nothing about photography, they think that surely the higher the resolution the better the image, but it's not true, for the most part the higher the resolution, or, to be more accurate, the higher the pixel density, the WORSE the images are, but people who know nothing go for the high pixel count headline figure every time and manufacturers have to fulfill that need or sell fewer cameras.
Chris
There are lots of reasons to use fewer Mp, the more pixels you cram onto a small sensor the lower the dynamic range (skies will burn out to white and the dark shadows will block out to black more readily and record next to no detail), the noisier the images will be, the worse the low light performance will get, in extreme cases you can get the sensor out resolving the lenses. The pixel density figure is every bit as important as the mp count with camera sensors.
My Pentax Q has this sensor out resolving lenses problem, 12Mp crammed onto a very small sensor. because of diffraction you can't use any aperture smaller than f8 on a Pentax Q and you need high quality lenses to get decent images.
The only advantage to lots of Mp is you can print bigger. The high pixel count sensor WILL record more detail, but you can only use that higher resolution in large prints, by which I mean prints measured in Feet rather than Inches, all other outputs need, and can only use, far less.
The computer monitor your using to check your images and edit them will only have a resolution of some 1900 X1280 pixels, that's only a 2.3Mp image, all the extra resolution recorded by your 36Mp sensor is just not shown and is ignored, the high resolution cannot be displayed by the average monitor. Even a very expensive 16bit, high resolution monitor, which cost more than a small car to buy, can only display a 6Mp image!
You need more resolution for large prints, but even an A3 print only needs 12.3Mp any more than that and the extra data is just dumped, not needed, the printer can't reproduce it! Which is why most DSLR cameras have a sensor around 12Mp, it's the best compromise of pixel density and resolution. You can print an image from a 12mp camera much larger than this A3 size and still get good results.
Most cameras are bought by people that know nothing about photography, they think that surely the higher the resolution the better the image, but it's not true, for the most part the higher the resolution, or, to be more accurate, the higher the pixel density, the WORSE the images are, but people who know nothing go for the high pixel count headline figure every time and manufacturers have to fulfill that need or sell fewer cameras.
Chris
I want to buy the right memory card for my canon SD890 IS 10 megapixel camera?
Shellybell
I just bought a Canon 10 megapixel camera and i want to know which memory card will give me the best results. I have a 1gb and a 2.0 gb. Does it really matter? or is there one even better than this. That will accommodate my 10 megapixel camera.
Answer
It doesn't really matter what capacity card you have, as long as it's enough capacity for your needs. Cards are very cheap these days, so you can buy several if you need to.
What matters most though, is that you use a fairly high speed card, because your camera (even though it's only compact) really does take advantage of a fast SD card.
So, if you're not using one already, I would recommend the very popular, Sandisk Extreme III or similarly fast card.
It doesn't really matter what capacity card you have, as long as it's enough capacity for your needs. Cards are very cheap these days, so you can buy several if you need to.
What matters most though, is that you use a fairly high speed card, because your camera (even though it's only compact) really does take advantage of a fast SD card.
So, if you're not using one already, I would recommend the very popular, Sandisk Extreme III or similarly fast card.
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Title Post: Are there any disadvantages to having a high megapixel camera sensor?
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Rating: 92% based on 9788 ratings. 5 user reviews.
Author: Yukie
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