A recent viral photo of the president presents an opportune time to talk about perspective distortion.
The high-end lens maker has created some top-tier iPhone accessory lenses
Sigma claims their ceramic filters is 10x harder than traditional glass filters
By using 3D printing, the cameras can be made more simply, and with precise designs that would otherwise be impossible
Be like Harry Potter, only with science instead of magic.
These little applets break down the optics behind cameras and lenses
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