M Vers wrote:
Yohan Pamudji wrote
n0b0 wrote
If I can MF the MP-E 65mm at 5:1 with the Rebel VF, I sure as hell can MF any lens with this 7D. You guys whinge too much. Max aperture on the MP-E 65mm is f/2.8. Stock focusing screens can show accurate DOF for f/2.8. It's when you get to larger apertures that you start having problems. When an f/1.2 lens has DOF like an f/2.8 in the viewfinder, you're not sure if you've nailed focus or not until you've taken the shot. Have you no experience with macro, let alone at 5x mag? If you did, you would understand that the DOF is literally razor thin even when stopped down. Remember, distance plays an enormous role pertaining to DOF, the closer you are to the subject the less perceived DOF.
This is true but at least your subject would be filling more of the frame and easier to discern. Now trying to Manual Focus a 50mm lens at a moderate distance, wide open is a crapshoot without a precision screen.