Nice review, hope you're enjoying your lens! I also have and love this lens -- and the filter threads are 49mm, btw. Also, unless I'm aiming to blur point light sources into some really nice bokeh balls, I also shoot at -- and tend to consider this -- more of an f/2 lens. My copy, at least, noticeably sharpens and deepens the contrast and colors when I shoot at f/2. Oh.. and one last thing if you haven't already heard.. these are slightly radioactive and others have recommended not holding the lens right up to your eye.

Great review 👍👍 i recently acquired Minolta md rokkor 50 1.7... thnx to your review i now decided to get this takumar 55 next ... Tho i have the sigma trio im loving the results im getting with my vintage lens as well

A lens hood makes it even better.

Can't go wrong with a Takumar!

Awesome sir

Is this one of the radiactive ones?

A-Sa-He not Aa-sha -High...

it’s asahi not ash-a-hi.