Few people have heard of it, yet many consider John Blankenbaker's KENBAK-1 to be the first commercial personal computer.

Koss introduced these headphones over 40 years ago, and they remain affordable favorites to this day.

A Real Polaroid SLR Instant Camera

Roid SLR 690

My 4 year-old son wants a Polaroid camera. Oddly enough, he came up with the idea while watching a cartoon. One of the characters had a camera that ejected instant prints for the front, and he decided the design was far more sensible than a digital point-and-shoot. I agreed with him. I have an old Polaroid OneStep camera in a box somewhere and I promised that we could shoot a few photos. He grinned and responded, "Stop signs, dad. I want to take pictures of traffic signs." Unfortunately, I neglected to check the price of Polaroid film packs -- this little roadside safari is going to cost me $1.50 a shot.

A number of people have asked me whether Polaroid ever made an SLR instant camera with through-the-lens focusing and framing (Polaroids typically offer a simple discrete viewfinder). The good news is that Polaroid produced such a series. The bad news is that they don't look anything like a normal compact Canon or Nikon 35 mm SLR, nor do they offer zoom lenses -- they share the same lumpy design as nearly every other classic Polaroid device.

The Polaroid SLR 690 was expensive, carrying a list price of $399 when it debuted in 1996. It offered a rather slow  4-element 116 mm f/8 lens with ultrasonic echo ranging and a 4-bit microprocessor to control the two-blade scanning aperture system. Other convenient features included center-weighted scene averaging exposure control, an auto-focus bypass switch, and a built-in tripod mount. Honestly, a Polaroid SLR is of limited use with a fixed focal length lens and I wish that Polaroid had been able to integrate a zoom.

Discover more about the Polaroid SLR 690 [Ken Rockwell, with more great photos]

Polaroid I-Zone Camera
Polaroid Pinhole Cameras


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