Monty Chan

I have the same issues. I hope one day someone has a solution.

you're right stephen, tested at the studio this morning with the 16mm. It does portholes unless stopping down 1 or 2 stop. Do you think 24/28/32 will also portholes at 4K? We only have a 16mm at this moment, and the 40mm/50mm look fine.

Thank for your reply Stephen. I have seen the zeiss std spd 16mm on epic 4k, no porthole was seen. I like the cooke look too, but 2.8 might be little slow for me, since I shoot mostly closeup and low light. I don't know if anyone has compared cooke panchro and the S4. The reason why I consider the zeiss standard prime, because it is very very sharp even comparing to the ultra prime.

Need help to decide either a set of Cooke Panchro includes 25,32,50,75, 100 or the standard primes 16, 28, 40, 60 *macro, 85, 100, 180. I recently got budget for either set. I have rented the standard prime before. The images were consistantly very good and not a huge different compared to the ultra prime. I heard that the New Panchros are also great but with 1 stop slower. I'm leaning towards the used zeiss considering the set is cheaper and 1 stop faster. But really want to hear what you guys think about these two set. I appreciate your comments.