At 2/9/2023 04:54 AM, Frank wrote:
>Actually, the Sigma 180mm 2.8 macro is also effective 115mm at 1:1
>If I may believe the formula I found some time ago ;-).
>I collected data from some macro lenses. They are as good as their source
>(which I don't provide ;-).
>All in here: <
>Improvements always welcome.
Thanks for the spreadsheet. I have the Canon EF 180mm F3.5 macro:
MFD 480mm (focal plane)
MWD 240mm (9.5")
from a calculator with 480mm MFD effective focal length would be 120mm?
I always get confused by the 2x MFT comparisons. Does MFD 3.7" at 1:1 compared
to FF 180mm MFD 9.5" at 1:1"?
Themed Olympus Photo Exhibition: http://www.tope.nl/