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IMAG telephoto lens question
How much magnification will I need to get a headshot at 150 feet with a Panasonic HDX900 camera? 18x? 20x? 40x?
Yes, usually a longer lens is always better, and I never like to use a 2 x extender due to light loss.
Is there an article or a chart that can simply state show how tight a cam op can frame a subject with any given lens magnification?