08-09-2011, 09:03 AM
[quote name='mst' timestamp='1312878691' post='10539']
Usually from the sensor. So MFD - lens length - flange distance = working distance.
-- Markus
[/quote]
That's how I know it also... And that's why knowing the "working distance" is crucial when it comes to macro lenses...
So for Canon EOS mount, minimum working distance for this lens = 380mm - 150mm - 44mm = 186mm (=18,6cm). And this is the distance you get max reproduction ratio of 1:1...
Serkan
Usually from the sensor. So MFD - lens length - flange distance = working distance.
-- Markus
[/quote]
That's how I know it also... And that's why knowing the "working distance" is crucial when it comes to macro lenses...
So for Canon EOS mount, minimum working distance for this lens = 380mm - 150mm - 44mm = 186mm (=18,6cm). And this is the distance you get max reproduction ratio of 1:1...
Serkan