The Tokina Vista Primes are definitely not worth turning your nose up at, The Vista primes cover a huge image circle covering vista vision and full frame and have zero breathing due to their optical design, they are sharp edge to edge with a warm tone, equipped with a 9 blade aperture they deliver a beautiful circular bokeh.

At  T1.5 the Tokina Vista primes are optically a big contender with some of the well known high end cinema glass.