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NAR data shows that median sale prices of existing homes are near record highs. March 2024’s median of $393,500 is off the all-time-high of $413,800, but it’s the highest March median on record.
The periscope on the left uses mirrors whereas the right uses prisms. a Mirrors b Prisms c Observer's eye Principle of the lens periscope. The two periscopes differ in the way they erect the image. The left one uses an erecting prism whereas the right uses an erecting lens and a second image plane. a Objective lens b Field lens c Image erecting ...
Surgery or special glasses (prisms) may be advised if there is no recovery in 6 to 12 months. If diplopia turns out to be intractable, it can be managed as last resort by obscuring part of the patient's field of view. This approach is outlined in the article on diplopia occurring in association with a condition called horror fusionis. See also
However, for the record: the first autofocus lens for a still camera was the Konishiroku Konica Hexanon 38mm f/2.8 built into the Konica C35 AF (1977, Japan) 35mm point-and-shoot; the first autofocus lens for an SLR camera was the unnamed 116mm f/8 built into the Polaroid SX-70 Sonar (1978, USA) instant film SLR; the first interchangeable ...
Glasses, also known as eyeglasses and spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears. Glasses are typically used for vision correction, such as with ...
The history of the single-lens reflex camera (SLR) begins with the use of a reflex mirror in a camera obscura described in 1676, but it took a long time for the design to succeed for photographic cameras. The first patent was granted in 1861, and the first cameras were produced in 1884, but while elegantly simple in concept, they were very ...
Fire sale in Christchurch, New Zealand, c. 1933. A fire sale is the sale of goods at extremely discounted prices. The term originated in reference to the sale of goods at a heavy discount due to fire damage. It may or may not be defined as a closeout, the final sale of goods to zero inventory. They are said to occur in the financial markets ...
Gottschalk developed a lens system using front-mounted prisms to impart a slight 1.25x squeeze onto a 5-perf 65 mm negative, resulting in a projected ratio of 2.76:1. These prism lenses were released under the name MGM Camera 65 in 1956.