

Our nephew, Tone, died last week. It was expected, but sad. I can hear him say, many times, "Uncle do you want some Tea?" Tone helped take care of Jit's mother before she died. I will miss Tone.
Diffraction is an optical effect which can limit the total resolution of your photography-- no matter how many megapixels your camera may have. Ordinarily light travels in straight lines through uniform air, however it begins to disperse or "diffract" when squeezed through a small hole (such as your camera's aperture).
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