Tag Archives: lens

Okey-Bokehy

Posted on September 29, 2020 by Robert

Toronto. A recent post on depth of field prompted a note from my friend George Dunbar along with a photo for a red IBM  Selectric typewriter (remember those machines with the flying golf balls of interchangeable typefaces?). For the ad, … Continue reading →

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controlling depth of field

Posted on September 26, 2020 by Robert

Toronto. As a general rule, the longer the focal length of a lens, the smaller its maximum possible f/stop and the less its depth of field. Conversely, the shorter the focal length, the greater the depth of field and the … Continue reading →

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photographica c1925

Posted on September 22, 2020 by Robert

Toronto. The magazine Science & Industry addressed the wide audience of tinkers and experimenters (mostly boys and youths) and as such it included a wide range of things. In this example article, a camera is shown, but unnamed. The take home … Continue reading →

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down periscope …

Posted on August 7, 2020 by Robert

Toronto. Do you remember submarine movies? Somewhere in the plot you would hear “down periscope” before a dive alarm sounded. Recently, I was surprised to see the term being used today to refer to a smartphone-sized telephoto lens design, By … Continue reading →

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i am so EXCITED …

Posted on July 20, 2020 by Robert

Toronto. … as Martin Short‘s character, Ed Grimsley, used to shout on SCTV skits. To do the character justice, Short was down right hyper. And speaking of hyper, hyperfocal distance was important in 35mm film photography, especially daytime street photography. … Continue reading →

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shady stuff

Posted on July 18, 2020 by Robert

Toronto. Don’t you wish your photos were crisp and contrasty like those of an accomplished professional? One issue last century was soft contrast caused by reflections from individual lens elements. Post war, element coating became common and with it a … Continue reading →

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and to cap it off …

Posted on July 17, 2020 by Robert

Toronto. Dust and dirt everywhere! How can you keep it out of camera bodies and lenses? Easy, cap the openings! Since the early days of photography, caps have been used to keep out dust and dirt when the camera or … Continue reading →

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a little less Horace …

Posted on February 21, 2020 by Robert

Toronto. If you are not heading to the West coast in April, perhaps another show on the same date of April 19th will help. About two hours west of here in London, Ontario, Maureen and Ron Tucker are hosting the … Continue reading →

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Horace said it best

Posted on February 20, 2020 by Robert

Toronto. The American New Yorker said, “Go West, young man…”, a recommendation recently repeated by Tonchi Martinic in his email on the Vancouver Camera Show. So if you plan to visit Vancouver, or find yourself there in late April, enjoy … Continue reading →

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just give me a ring …

Posted on January 28, 2020 by Robert

Toronto. With the sudden burst of growth in the minicam industry, major players like Leitz and Zeiss produced a large variety of lenses, camera models and attachments to make their little marvels suitable to tackle almost any photography job imaginable. … Continue reading →

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