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The Megapixel Myth by likwidoxigen The Megapixel Myth by likwidoxigen
A tutorial talking about the Megapixel myth with Digital Cameras. Simplified and modified version of The Megapixel Myth by Ken Rockwell.

[link] <-Ken Rockwell, "The Megapixel Myth
[link] <- NY Times reported blows up a 5, 10 and 13mp image and no one can tell the difference.

I need to update this description. With the right skills, and the right know how I got a 3.6MP image printed at 20"x30" and it is absolutely positively gorgeous. And that's when viewed from about 6 inches away, it's stunning.
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likwidoxigen Featured By Owner Oct 30, 2010
It's a comparison of linear measure and area measure.

To make a square that is twice as big as a 4x4cm square you make it an 8x8cm square because "size" of the final product (as in a photo print) is about linear measure.

An 8x8 square has quadruple the area of a 4x4 square. 64cm^2 vs 16cm^2

You would never order a 24in^2 print but you would order a 4x6 and if you wanted something twice as big you'd look to get an 8x12.

Megapixels are an area measure and MEANINGLESS with regards to the final product from photgraphy (a photo print).
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Sounava Featured By Owner Oct 3, 2010   Photographer
A 12MP cam cannot have 8192 pixels in the long side.

12MP = 12000000pixels.

Therefore, number of pixels at the short side = 12000000/8192 = 1465 => Then the image will turn into a panorama :rofl:

3MP cams have 2048x1536 images. 1465 is even less than that :rofl:

12MP cams typically have 4000x3000 resolution. Note that 4000x3000 = 12000000.

I have no idea what the author was thinking when writing this.
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likwidoxigen Featured By Owner Oct 30, 2010
I'll get it corrected when I hook up my external but it should be 4096 or if you look at something like the rebel xsi it's 4272 on the long side

Also, no camera has exactly 12mp it's always around there, and they also have to have additional pixels on the edges that are "lost" due to interpolation of the bayer pattern on the sensor itself.
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:iconsounava:
Sounava Featured By Owner Oct 30, 2010   Photographer
DSLRs have 3:2 image ratio and will not have exact 12MP but around it, like 12.3MP for example.

But Four-thirds and other point and shoot cameras have 4:3 image ratio and can have exact 12MP res = 4000x3000 pixels.

Of course when we talk about pixels we are talking about the effective pixels and not the number of pixels present in the sensor.
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likwidoxigen Featured By Owner Oct 30, 2010
Yup yup.
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:iconlikwidoxigen:
likwidoxigen Featured By Owner Oct 30, 2010
Lol, that's an example of why not to use a formula in a document, because a typo of a 4 instead of a 2.
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