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Forum: Pentax SLR Lens Discussion
06-30-2013, 09:27 PM
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Hey Ripit
Those photos are reminiscent of the Alien movie when Ash, the Hyperdyne Systems 120-A/2 robot, got pulled apart and could still talk.
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Forum: Pentax SLR Lens Discussion
06-25-2013, 06:03 PM
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A star diagonal will give you an upright image but inverted side to side.
An Amici roof prism will give a corrected image, so you can read a roadsign etc correctly
These things appear to be plentiful and cheap, used by the telescopers when they want to view terrestrial objects, called "45 degree correct image prism diagonal "
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