![]() Kodak introduced 35mm film in daylight-loading cartridges, which did away with the need for the photographer to load the cassettes themselves in a darkroom. Two Kodak innovations in the mid-30s helped spur interest in miniature films. Although this was during the Great Depression, there was an expanding variety of film emulsions, though still very slow, and the flash bulb was invented in '27, permitting easier indoor photography. So Verschoor worked on ideas to expand the product line to keep the employees busy all year. Their radio business was successful, but very seasonal, resulting in slack months for IRC employees. IRC soon marketed a kit that allowed Kadette owners to use the radio in their automobiles and other vehicles, which effectively started the car radio market. The plastic cabinet and assembly lines would lend themselves to the manufacturing of miniature cameras a few years later. One of its most innovative features was its phenolic resin cabinet. In 1932 IRC introduced the Kadette, a small four-tube AC/DC radio that measured 85/8圆1/2x4" and weighed only 6 lbs, which made it easily portable from room to room. The firm that invented and produced Argus cameras in Ann Arbor, Michigan, started out as the International Radio Corporation (IRC) founded by Charles Albert Verschoor, a true American entrepreneurial genius. It had a phenolic body, optical viewfinder, exposure counter mechanism, and retractable drop-in lens assembly with a 50mm f/4.5 lens. If landscape photography is your thing, be sure to visit Iversen’s instructional YouTube channel where you’ll find a wide variety of tips and tricks.Īnd don’t miss another landscape photography tutorial we posted, explaining how to eliminate lens flare or use it to create a unique effect.The Argus A sold for $12.50 when introduced in May 1936. He wraps up the video with a question: “How important is sharpness?” ![]() Iversen discusses how lenses of different focal lengths factor into the equation, and he reveals a few common technical miscues and how to solve them. There’s also a helpful discussion of choosing the proper shutter speed for the task at hand, and how this setting interacts with image stabilization. Telephoto lenses can be a problem without proper support, and Iversen provides several helpful tips for shooting handheld and using a tripod to maximum advantage. In this regard you’ll learn about “lens diffraction” and why Iversen always stops down by at least two f/stops below the minimum aperture on a lens. The discussion then moves on to practical matters beginning with how lens aperture affects sharpness and determines the range of focus. He also explains that some lenses are inherently unsharp, in which case it’s time to pull out your wallet. Iversen begins with this: “It’s important to make a distinction between whether something is in focus, or whether it’s unsharp because something is moving.” Then he notes two basic principles, which include selecting the wrong lens aperture and insufficient depth of field. ![]() In this episode he shares “a ton of techniques” for attaining fast and precise focus regardless of the type of outdoor images you shoot. Instructor Mads Peter Iversen is an accomplished Danish pro, with a unique minimalist style that requires him to nail focus on the main subject of every shot. You’ll learn how to solve common problems, the key camera settings to use, a number of shooting techniques, and how to determine if your gear is the culprit. The tutorial below from one of our favorite landscape photographers explains how to maximize sharpness in the field. This saves time during the editing process, and helps avoid the temptation to take things too far-ending up with an unsightly, “crispy” effect. All photographers strive to create photos with accurate focus, and most of us prefer to get things right in the camera. ![]()
0 Comments
Leave a Reply. |