Thinking of swapping from MFT to full DSLR - Advice?

Started Mar 29, 2013 | Discussions thread
richarddd
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Re: the perfect misconception
In reply to idiotekniQues, Mar 29, 2013

idiotekniQues wrote:

tko wrote:

But it's not equal to FF. FF lenses are actually cheaper for the same performance, because they've been building them for many years. M43ds vendors are raking in the money because people think F2.8 on M43rd is equal to F2.8 on FF, and they're getting a good deal. They're not.

clueless. f2.8 is f2.8 on either or. one has more DOF and one has less based on sensor size. but as an aperture, f2.8 is still the same thing.

F-stops, such as f/2.8,  are the ratio of focal length to diameter of the entrance pupil (roughly the same as aperture).  A 100 f/2.8 lens has twice the aperture of a 50 f/2.8 lens.

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