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.

Wicked Looking Medium Format 3D Camera

3dworld
The 3D World TL-120 camera records stereoscopic images on 120 format film, capturing a striking pair of 58 x 56mm images with each click of the shutter. Don't let the curvy modern case fool you, this device has more in common with cameras from the mid-20th century than anything produced in this century.

3dworldeyepiece_2 For starters, it features manual focus adjustment from 80 cm to infinity, and three mechanically linked lenses, which could make spontaneous  photography a challenge. The two bottom lenses capture the image, while the third functions as an adjustable viewfinder with split-image focusing and a fresnel screen. The lenses are optically identical, with a minimum /2.8 aperture and 80mm focal length.

The camera includes a metal focal plane shutter capable of exposures ranging from 1 second to 1/500 second. There's also a timelapse setting which allows the shutter to be held open as long as required. The remaining features are fairly spartan - manual film advance, a flash contact and a pair of silicon photo diodes for light metering. The beast weighs just under 2 kg (4.4 lbs) without film. There are several available on eBay, priced at around $1,300 plus shipping from somewhere mysterious in China.

120 Tri-lens Stereo Camera [via OhGizmo!]

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