The first step towards clearer vision is learning which lens index is right for you. Our chart explains lens indexes including 1,67 and 1.74 high index lenses.
Since a given line can have any combination of thickness, color and type, the above MTF chart has a total of eight different types of lines. For example, a curve that is bold, blue and dashed would describe the MTF of meridional 10 LP/mm lines at an aperture of f/8.0. ...
…In a direct comparison, the Cookes have a slight color shift towards green and the Sony lenses into the magenta color space. …With their nine rounded blades, the SCL-PK6 lenses usually produce beautiful round bokehs, but the Cooke S4/i cannot keep up here with their eight straight blade...
Each image has 80×80 pixels with a pixel resolution of 25 μm, and is measured from a slice thickness of 200 μm. The pixel value is scaled to a range of 0–250. The repetition time and the excitation power were adjusted towards a best SNR, respectively 1 s and 0.18 mW for the ...
(thixomolding) for a thin walled formation. For example, with the first group lens barrel on the 400mm model, we were able to achieve a barrel thickness of 0.8mm via injection molding, for a base that is 20% thinner than previous models, maintaining sufficient strength and lightness. The ...
Load Comparison Images Be sure to find the center of the plane of sharp focus in these images. Not all details should be sharp. Note that the fawn's eye crop image has some noise reduction added. Also remember that the sharpness setting could be turned up slightly. Focus shift, the pla...
Imaging biological samples with a certain thickness is usually limited by an inevitable obliquity between the sample and lens plane. This often leads to out-of-focus blurred images and therefore limits the FoV of imaging systems with a short DoF. When observing the internal fine structures of neu...
The cent diameter is 19 mm and its thickness is ∼1.55 mm Full size image However, although the science return might only be incremental in some cases—and, in keeping with the philosophy that, once the effort and energy have been expended to position MAHLI at a given location every ...
A standard thickness UV filter shows little or no additional vignetting regardless of the camera body being used. However, you will likely want a slim circular polarizing filter. Although not as fast as the Canon EF 16-35mm f/2.8L lens, the Canon EF 17-40mm f/4L USM Lens is a ...
Figure 1. Schematic comparison between the circular and elliptical configuration of planar metalens. (a) shaping an isotropic focal spot by a circular planar metalens; (b) shaping a transverse optical needle in the focal plane by an elliptical planer metalens, where a and b are the semi-minor...