Perceptual MegaPixel
The Perceptual MegaPixel (P-MP) is a proprietary ranking of lens-camera combinations, created by DxO Labs. It is intended to express the resolution of which a combination of camera and lens is capable. Complete scientific or technical documentation of the process used to compute P-MP values has never been published, and P-MP measurements have never been made without the cooperation of DxO Labs. The name of the measurement is a trade mark.
The P-MP meant for photographers to consider when comparing the sharpness of a combination of camera and lens.[1] DxO Labs claims that P-MP is a more accurate and relevant value for photographers to consider when weighing-up camera sharpness.[2][3][4][5]
As of March 2017, the "Canon EF 300mm f/2.8L IS II USM" lens mounted on a "Canon EOS 5Ds R" has the highest measured P-Mpix value in the DxO Labs lens database, a value of 44.7.[6] On the lens' summary pages this figure is rounded to an integer value of 45 P-Mpix[7]
References
- ↑ http://news.cnet.com/8301-17938_105-57559599-1/dxo-labs-tries-making-sense-of-camera-lens-sharpness/ DxO Labs tries making sense of camera lens sharpness
- ↑ http://petapixel.com/2012/12/17/perceptual-megapixel-mtf-charts-boiled-down-to-a-single-number/
- ↑ http://photo.net/photography-news-forum/00b9IO
- ↑ http://timgrey.com/blog/2013/dxomark-introduces-the-perceptual-megapixel/
- ↑ http://news.cnet.com/8301-17938_105-57559599-1/dxo-labs-tries-making-sense-of-camera-lens-sharpness/
- ↑ DxO. "Camera Lens Database | DxOMark". www.dxomark.com. Retrieved 2017-03-22.
- ↑ http://www.dxomark.com/index.php/Lenses/Camera-Lens-Ratings/Optical-Metric-Scores Canon EF 300mm f/2.8L IS II USM mounted on Canon EOS 5Ds R
