>>2625973This lens at f/5.6 is more than sufficient for the requirements of the project. Of course the 'quality' won't be as good as if I shot the same scenes with my Biogon, but that doesn't matter because the customer isn't a 100% crop pixel peeper.
>>2625978Realistically you don't even need to remain rectilinear, fisheye distortion is corrected well enough by software.