<https://simonhawketts.co.uk/2015/10/21/some-samples-from-a-meyer-optik-primotar-f2-8-50mm/comment-4496>
<http://schema.org/description>
"Hi Simon. Is yours the aluminium zebra pod barrel like mine? If so, do you find that the aperture blades don't quite fully retract to the sides of the barrel when wide open? Mine is like this and I always though tit a defect, but I've come across someone else who says the same. Now wondering if it's just the design of this lens."
<https://simonhawketts.co.uk/2015/10/21/some-samples-from-a-meyer-optik-primotar-f2-8-50mm/>