07-01-2013, 10:57 PM
If the border LW/PH of a lens is 1000 there'll be no significant difference (<5%) between the 50D and 70D.
If the border LW/PH of a lens is 1500 there'll be a marginal difference (~5%) between the 50D and 70D.
If the border LW/PH of a lens is 2000 there'll be a slight difference (5-10%) between the 50D and 70D.
If the border LW/PH of a lens is beyond 2500 there'll be a medium difference (~15%) between the 50D and 70D.
Now this assumes that I would take the same RAW converter with the same profile.
I suspect that Canon will follow the trend and use a weaker AA filter in the 70D. In this case you can double those figures - AA filters have a linear effect.
The point is that there is always a scaling effect with the bigger sensors. This multiplier is similar to a USM. If there is no sharpness at all it will not help. However, the clearer the edge the more accelerated is the effect.
If the border LW/PH of a lens is 1500 there'll be a marginal difference (~5%) between the 50D and 70D.
If the border LW/PH of a lens is 2000 there'll be a slight difference (5-10%) between the 50D and 70D.
If the border LW/PH of a lens is beyond 2500 there'll be a medium difference (~15%) between the 50D and 70D.
Now this assumes that I would take the same RAW converter with the same profile.
I suspect that Canon will follow the trend and use a weaker AA filter in the 70D. In this case you can double those figures - AA filters have a linear effect.
The point is that there is always a scaling effect with the bigger sensors. This multiplier is similar to a USM. If there is no sharpness at all it will not help. However, the clearer the edge the more accelerated is the effect.