When it comes to the quality of lenses themselves, Ms. Maier believes that customers get what they pay for.
The ratio of focal length to radius of curvature is known as the Matthiessen ratio (named for its discoverer, German physicist and zoologist Ludwig Matthiessen) and is used to determine the optical quality of lenses.
1800s - the optical quality of lenses increased and the microscopes are similar to the ones we use today.
Panasonic, Olympus, Pentax and Nikon have in the past few years launched a new kind of camera that matches the quality of lenses of a professional model with the sleek, light body of a pocket, point-and-shoot device.
Although there are cheaper domestic lens, none of domestic lens was used in these hospitals because patients thought that the quality of imported lens was better than domestic lenses.
Using both a human rights lens and a quality of care lens to examine and implement interventions is likely to improve provider attitudes and ensure that both patient and provider rights are respected.
With aging, crystallins slowly lose their protective mechanisms for maintaining lens clarity and function [4], [5], leading to deterioration of the optical quality of the lens and, eventually, to the development of age-onset cataract.
According to the standard of DMD; the angle of view, effective focal length, the relationship of imaging and object and imaging quality of the lens can be defined.
A frequently used measure of the quality of any lens system is its ability to form an image that is sharp enough to separate, or resolve, two very close dots or lines in an object.
This differs from camera to camera and often depends more on the quality of the lens; but that's a WTF for another time.
The new version ups the resolution to 2.0 megapixels (1600 x 1200) – and for good measure, they've upped the quality of the lens and the optical sensor, as well.
