Inspecting quality of Nikkor-S 5cm f1.4 + Amedeo adapter
Hi guys. First time posting in Nikkor section because I just bought my first Nikkor RF lens--Nikkor-S 5cm f1.4 + Amedeo adapter. Is there a way to inspect the quality for these two items? I found that, up close, there is a lot more details but glow like crazy wide-open. Step down to f2, it can render much sharper details. Beyond 10m away though, the lens is not sharp even at f5.6. Is this normal? Thanks!