Category » Roger’s Ramblings

Equipment

Optical Quality Assurance

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  Pinhole images from new, but optically decentered lens. Olaf Optical Testing, 2016   After we published a number of posts about copy-to-copy variation, people were quick to say that this company or that needs to ‘just’ improve quality control. I totally agree but realize most people don’t have a clue what ‘improving quality control’ […]

History of Photography

A Clear History of Glass

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I’ve written about glass, as in lenses, for years now. But I’ve never looked into the history of glass as just a substance, because, well, who cared? When I accidentally did some reading about early glass, though, I was rather amazed at just how important it was. So I thought I’d write about the history […]

Humor and sarcasm

About That 25-300mm f/2.8 You Wanted

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I get an email or text about once a month asking me if I think Canon, Nikon, or some other photo manufacturer will ever make something like a 24-300mm f/2.8 zoom lens. I’m usually gentle with those people, because I realize that a lot of people truly believe that if they want something badly enough, […]

History of Photography

I’m Gonna Party Like It’s 1995

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I doubt any of you remember it, but 1995 was the coming out party for Digital SLRs. There had been digital cameras before then. There had even been digital SLR cameras of a sort – modified cameras tethered to a hard drive — before then. But in 1995 camera makers released digital SLR cameras for […]

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