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re: Why is resolution a measure of quality for smartphone screens, but not cameras?
Posted on 12/6/14 at 7:00 pm to lsuconnman
Posted on 12/6/14 at 7:00 pm to lsuconnman
quote:
That's not entirely correct, unless you equate resolution to quality.
It is entirely correct, megapixels are the same as resolution where both cameras and screens are concerned.
Your dpi argument is simply a roundabout way to say that quality is better than quantity of pixels, given that the quantity of pixels is sufficient. Obviously, the size of a given screen or sensor, and the scale of a given image, matter when viewing a particular image on a particular screen. But so what? We are talking about camera quality factors vs screen quality factors, NOT the dynamics of viewing an image taken with a particular camera being displayed on various screens vs printed, etc.
Also, you state that megapixels are irrelevant for printing purposes. Nothing could be further from the truth. Just as I've said already, the number of pixels (or dots or points) is the main determinant of quality, up to the point that it doesn't matter as much as other factors, depending on the display device/media, viewing distance, etc.
1
Posted on 12/6/14 at 7:36 pm to Korkstand
Well I'll try to explain it another way. Just like screens you need to map the megapixels. 10mp squeezed into a 4mm sensor is not equal to 10mp in a 24x36mm sensor.
The primary function of a camera is to capture light, and larger density pixels capture much better photos.
The MP misconception can be easily demonstrated if you take your camera and put it into panoramic mode. It will easily create a 10-20 megapixel photo...and when you inspect it at 100% zoom and map it pixel to pixel on your computer it will be completely distinguishable from a 10-20mp photo taken with a DSLR. It doesn't matter how many megapixels you cram into a camera phone, you will never overcome the artifacting that occurs in the smaller sensors. This fact may not be true forever, as the new mirror less sensors have shown a great deal of promise.
But until that time comes, I guess we'll need to agree to disagree.
The primary function of a camera is to capture light, and larger density pixels capture much better photos.
The MP misconception can be easily demonstrated if you take your camera and put it into panoramic mode. It will easily create a 10-20 megapixel photo...and when you inspect it at 100% zoom and map it pixel to pixel on your computer it will be completely distinguishable from a 10-20mp photo taken with a DSLR. It doesn't matter how many megapixels you cram into a camera phone, you will never overcome the artifacting that occurs in the smaller sensors. This fact may not be true forever, as the new mirror less sensors have shown a great deal of promise.
But until that time comes, I guess we'll need to agree to disagree.
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