![]() It is pretty clear that this is based on the symmetric lens type.įrom the left there is a convex lens, a compound convex/concave cemented lens, a diaphragm, a concave lens, convex lens, and then another convex/concave cemented lens. ![]() This discussion will be a little more difficult, but please bear with it.įirst, take a look at the cross-section of the W-NIKKOR 3.5cm f/1.8 (Fig. Structure and features of the W-NIKKOR 3.5cm f/1.8 lensĬross-section of W-Nikkor 3.5cm f/1.8 lens To be a lens designer back then required enormous determination and devotion. a staggering amount of computation and time must have been needed. It took another one to five years for competitors such as Ernst Leitz to develop similar lenses.Īt that time, the tools of the designer were the abacus and the logarithmic table. patent in 1959, signifying general recognition that this was indeed a new type of lens.Īt that time, most 3.5cm lenses were in the f/3.5 to f/2.5 range, and this was the first lens of f/2 or faster in the world. He filed the patent application for the large-diameter, wideangle lens in 1956, and was granted the U.S. This expert Japanese designer is little-known outside the industry, but his achievements can be traced through his countless reports and patents. Ludwig BERTELE was also active in the field in Germany. He made an enormous contribution to improving Nikkor lenses, especially in laying the foundation for aberration balancing.Īt the time he was active in the field, Dr. The optics were designed by Senior Manager AZUMA, Hideo of the Optical Design Section, and the design was completed in the winter of 1955.Īzuma was one of the teachers of WAKIMOTO, Zenji (mentioned in the first tale), and had extensive experience in designing "S" / "L"-mount Nikkor lenses. The body associated with it was the Nikon S2, but this was followed by the SP the following year, then the S3 the next, so you should understand that it was developed to match the concepts and designs of the SP and S3 as well. This lens, first released in September 1956, is the brightest wideangle lens in the world. The third tale discusses the W-NIKKOR 3.5cm f/1.8, our "S" / "L"-mount interchangeable lenses. Tap Background Art to choose from 20 background themes or to apply Surreal Art backgrounds.Symmetric high-speed, wide-angle lens W-Nikkor 3.5cm F1.8.Here’s how to change your photo background by using PhotoDirector: When editing image backgrounds, PhotoDirector has tons of surreal photo backgrounds you can use in your photos. Adjust the size and color to match your style. ![]() ![]() The Stroke Effect uses AI to instantly highlight your photo's subject or primary object to add a stroke-like background to the picture. Choose from seven stroke patterns to add a playful touch to your image! You can add creative effects like the Stroke Effect found on the bottom-right part of your screen. Apply Stroke Effects to the Cut Out Image PhotoDirector lets you do this very quickly with its easy-to-use interface. This is also a great tool if you’re a social media content creator or small business owner and you want to put cut outs of yourself, objects, pets, or products in multiple images to share online. If you’ve got a great shot of you and your friends, you can easily convert the image into a transparent background picture to use as a sticker or cut out in other pictures. With photo editing apps like PhotoDirector, there are lots of other quick, easy, and creative things you can do than simply removing a background from an image. So, you’ve removed that nasty background you don’t like. 3 Pro Tips for Removing Backgrounds From Images ![]()
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