How did you calculate these statistics? At 600mm f4 at 17.50 meters has a DoF of 13cm; 800mm f6.3 at 23.33 m the DoF is 21cm.
also
blur and
light gathering capability ?
I am not the only one who steers clear of the
idea of Equivalence with respect to photographic image formats. I stick to variables that can be calculated, except Bokeh which is a subjective, an aesthetic quality of an optic. So with respect to subject distances at correct exposures, what matters out in the wild are DoF and magnification, also crop factor when relevant.
“Everyone is right, everyone is wrong,”
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