OffTrail wrote:
I have both, and I don't think they're redundant. They just offer two different ways of working with 40mm. The 40 f/2 has been on my Z8 a lot lately, but this summer I shot the 28 f/1.5 Nokton and 40 f/1.2 Nokton a lot. As inexpensive as the 40 f/2 is, I think it's worth having around either way.