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Comment: Poor choice in lens (Score 1) 172

by tsangc (#32923860) Attached to: iPhone DSLR Prototype 1.0

Apart from the fact the focal plane distance and distortion due to other lens elements in the existing iPhone lens package screw up this idea...the builder also picked a Canon EF lens, which by default, unpowered is left at full aperture. Canon EF lenses stop down on command through the serial port in the EF interface. If this guy had actually managed to interface the EF mount electronically to the iPhone's camera subsystem...well, that would be pretty cool.

A better choice would have been to use an older Nikon (or M42, or K-mount) which has a manual aperture ring on the rear.

My guess is this setup would yield very narrow field of view (due to the smaller sensor and longer focal length), a fair amount of distortion and probably a lack of infinity focus (due to the distance extended from the existing lens groups--I would assume this is like using an extension tube).

Thus spake the master programmer: "After three days without programming, life becomes meaningless." -- Geoffrey James, "The Tao of Programming"

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