How many ways can you say “Zeiss Compact Primes are really really really nice” before it gets old? The 18mm is the perfect lens on the wide angle end of the CP.2 range. It won’t cover full frame (Canon 5D, Sony A7s, etc) but it will cover Super35 and then some (Arri Alexa, Red Epic & Weapon, C300, etc…) The T3.6 aperture is about equivalent to F2.8 on a still photo lens.