Looking to find the best lens for my crop sensor cameras (7D MkII and T4i). As much as I would like to buy into a full frame camera it won't be for at least a year with 2 lens purchases I am looking to make this year. I see a few people like the Samyangs and I am looking at the 16mm F2.0, the 24mm F1.4, and the 14mm F2.8. Presently using a Tamron 10-24 F3.5. Any recommendations on these or other lenses for us crop sensor users would be appreciated. Thank you.

