12-26-2011, 12:27 AM
Why do you want APS-C?
that panasonic X lens can collapse because of 2 things.
1. It lacks zoom and focus rings. Focussing and zooming is done via less intuitive levers.
2. It has very small max. apertures, meaning the glass elements can be very small and allowing the lens to be designed to "collapse" when not in use. Equivalent f-values for APS-C would be f5-f7.1.
If one were to produce an f5-f7.1 lens, in order to keep the glass so small that one could produce a collapsable lens, what would be the advantage of APS-C over m4/3rds for you?
that panasonic X lens can collapse because of 2 things.
1. It lacks zoom and focus rings. Focussing and zooming is done via less intuitive levers.
2. It has very small max. apertures, meaning the glass elements can be very small and allowing the lens to be designed to "collapse" when not in use. Equivalent f-values for APS-C would be f5-f7.1.
If one were to produce an f5-f7.1 lens, in order to keep the glass so small that one could produce a collapsable lens, what would be the advantage of APS-C over m4/3rds for you?