Yeah, optics confuse me enough already... macro is even more complex. I'd like to learn more about this stuff too (some day).
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Yeah, optics confuse me enough already... macro is even more complex. I'd like to learn more about this stuff too (some day).
Yeah, optics confuse me enough already... macro is even more complex. I'd like to learn more about this stuff too (some day).
Quote:
Originally Posted by Whatsreal
I use no formula, but an old trick. All you need is to know the size of your sensor in milimeters andto have aruler. Take a picture of the milimeter side of the ruler located at minimal working distance from the lens. If you re using eg a full frame sensor (36mm widex24mm high) and photograph, say, exactly36mm of the ruler across of your picture you get exactly 1:1.The less of the ruleryou can squeeze on the frame the more magnification your lens/ lens+tube will give you.Simpledivision of thewidth of the sensor by the length of the ruler in the frame will tell you the exact magnification. I like this method becauseone does not have to worry aboutvariations ofdifferent lenses.
Rulers rule![Y]