At f/8~11, I don't think there is a big change in sharpness. We might better consider that the aim of stopping down is to control the depth of field. At f/16~32, as an adverse effect of diffraction will gradually come out, it is not necessary to stop down to this extent in th...
he used to take a swallow of his sake. Then he lit another new cigarette and tossed off his glass. Again he lit a new cigarette . . . . At last there were three cigarettes on the ashtray and smoke was rising. When he was just to take fourth cigarette, someone said to him, "Mr....
The first Nikkor-S Auto looks like a combined Tessar-type lens to which a front converter has been attached. This was the basic lens configuration of wide-angle lenses for SLRs. However, the Tessar-type design could not overcome certain aberrations produced in the front converter element, and...
barrel distortion, which is difficult to correct. Furthermore, it also becomes more difficult to compensate for lateral chromatic aberration. Therefore, almost all wide-angle lenses for the 35mm [135] format with a focal length shorter than 19mm use the negative lead type....
zooming. This sounds somewhat confusing, however, so it is probably clearer to say that the first three groups comprise the front converter for zooming while the fourth group is the shooting lens, and that the size of the image is varied by varying the magnification of the front converter. ...
3 shows the lens configuration of the NEW Nikkor 35mm f/2.8. The evolution of Nikon's wide-angle SLR lens is clear. The first Nikkor-S Auto looks like a combined Tessar-type lens to which a front converter has been attached. This was the basic lens configuration of wide-angle lenses ...
A microcontroller is then used to read the processed voltage signal through the embedded AD converter. Then the weight of the grains can be calculated. The measurement result is displayed by LED segment displays and output via USB interface. The electronic balance's maxFiimguurme 1w. Tehigehei...