An excellent 8 to 10 megapixel camera (circa 2007) can create printed images perceived as sharp when viewed at a distance equal to the prints longer dimension (or further away). For example, for most people, a 20×30 inch print from an 8-10 megapixel SLR camera looks sharp viewed at 30 inches. This rule is subjective.
[...]
The following subjective viewing distance formula for the human eye is for well-printed images, from any high quality camera of any megapixel size:
Optimal viewing distance in inches ____ = 3500 divided by ( ____ optimal image file pixels per inch or ppi )
- Example A: A 240 ppi print can look sharp when viewed at 15 inches or greater, which is about the closest that most people look at prints. (14.6 inches = 3500 / 240 ppi)
- Example B: The 10 megapixel Nikon D40X captures 3872 x 2592 pixels native size. Take the longer dimension of 3872 pixels, and divide by 240 ppi, which equals a 16 inch print, which should look sharp when viewed at 15 inches or further from your eye. Enlarging this image, doubling its long side to 32 inches, will look sharp when viewed at least 30 inches from your eye (twice as far away).
- This formula is subjective, meaning your judgment of image sharpness may differ from mine.
I saw the "Shot with Iphone 6" photo advertisment printed to billboard size at Keppel Flyover.
I am wondering.... can a 8 megapixel camera be printed to billboard size?
I remembered some years back,
one member asking of recommendation of a Canon macro lens for his Canon 5DMKII to shoot his newborn baby, because he can't get close up enough,
I told him can just shoot with existing lens and crop it, since he said is not printing anything larger then 6R prints.
but he said he prefer not to crop it and would like to have a new lens instead.
I said; dude, do you know your camera has 21.1MP? how many pixel/dot you can to squeeze inside a 6R print?
he said; he had no ideal on what resolution is needed but want to keep all the details in the image.
I said; OK, do whatever float your boat.
I saw the "Shot with Iphone 6" photo advertisment printed to billboard size at Keppel Flyover.
I am wondering.... can a 8 megapixel camera be printed to billboard size?
Then why do we need higher megapixels count?
Those from Medium format and NXXXX and CXXXX.
many people bought it just because they can afford it, without knowing whether do they really need it.
Then why do we need higher megapixels count?
Those from Medium format and NXXXX and CXXXX.
Does one need to be racer in order to buy a Ferrari or Nissan GTR? :flush:
Professionals and those who are serious about photography always use Nikon or Canon and nothing else.
And do not use anything other than Nikon or Canon as the rest don't have good optics and can't take good photos.
:bsmilie:
Then why do we need higher megapixels count?
Those from Medium format and NXXXX and CXXXX.
Hey come on. Your statement is not true lor.....
Professionals and those who are serious about photography always use Nikon or Canon and nothing else.
And do not use anything other than Nikon or Canon as the rest don't have good optics and can't take good photos.
:bsmilie: