While most of my lenses have metal mounts, a few have plastic. No signs of wear. I also looked at some of my SLR film bodies that are decades old. No signs of scratches on the lens mount. As far as keeping a lens on the body... If...
The scratches decrease the yield of the semi-conductor device manufacturing and moreover metal film portions M1, M2, M3 are easy to peel off. Therefore, these metal film portions M1, M2, M3 are removed before the CMP process (FIG. 1D). [0005] It should be appreciated that a swell ...
Yet further, as alluded to above, the light source unit 36 may also be configured with a number of convex lenses or the like for focusing the light beams from the light source unit 36 onto the front side 48 of the semiconductor wafer 10. It should be appreciated that such focusing ...
The beauty of long nails, whether they're naturally grown or expertly crafted with acrylic, can pose unique challenges, particularly when it comes to the delicate task of removing contact lenses. The fear of eye injury or lens damage is real but, fear no
Well - after a few more hours of bathing and repeated washing with soap and a mixture of soap and isopropanol, I have the impression that the only effect is the increasing number of micro-scratches on the surface of the lens. I leave it in 30% hydrogen peroxide until morning. I will ...