SMC Pentax-M 28mm f2.8 brand_Sekonic The Canon 580EX II is

The Canon 580EX II is a powerful TTL flash for use on any Canon DSLR camera

It incorporates Nikon’s quick AF-S focusing system and new E-series electromagnetic diaphragm

8 Xenar lens

relatively fine-grained high speed colour print film

Kentmere 400 is an affordable

SMC Pentax-M 28mm f2.8 brand_Sekonic The Canon 580EX II isSo we're right up front about it: This lens has a stiff aperture control ring. No, that's not how it's supposed to be, but that's the way it is. However, the glass is clean and imaging is excellent. If you don't mind a bit of extra exercise when you're changing apertures, this is a nice little wide angle lens in otherwise fine shape.