Canon 50/1.8 Black, originally bought for parts. Etched glass behind the aperture, common on the Black Canons. I used a 3M Polishing Sheet and took some of the damage off. You can still see residual damage shining a light into it, but was too good to scrap.
On the M8, 40->43 Step Up ring, B&W IR/UV, and 43mm vented hood.
At F1.8:
F4:
At F1.8, and close-up (focus on the blade run across the front):
100% crop:
At F4:
100% crop:
On the M8, 40->43 Step Up ring, B&W IR/UV, and 43mm vented hood.
At F1.8:
F4:
At F1.8, and close-up (focus on the blade run across the front):
100% crop:
At F4:
100% crop: