I post too Much on Here!!
- Jul 21, 2010
Agree on the M11-22. The Rokinon 12/2 for M is reportedly a great choice for astrophotography, not only based on specs but also on low coma (an aberration that Canon doesn’t seem to care much about mitigating in their lens designs).Rokinon has made such lenses for efm mount e.g. 12f2. Being manual is not a big deal for such wide lenses as often focusing to infinity is all you need.
Being said, I still mostly go with 11-22 as a versatile, cost effective, and extremely valuable lens.