Which canon (or third party) lens in that range (50mm - 100mm) has the fastest focusing time while having good Image quality and decent sharpness?
Typically looking for a lens with low light capabilities f/1.2 - f/2.8 range (although it will be used with 2 off camera and one on camera flash).
Price is not an issue unless it is like $2500+ for a single lens lol
Some other information:
- Will be used mainly for dance floor (moving subjects)
- Will be used with 5D Mk III
- Looking for a lens which can focus quickly / accurately with Al Servo focusing method
- Has good image quality to be used in professional gigs
I currently use 85mm 1.2L but it misses quite a bit of shots due to slow focus.





