From very soft f2.8 to sharp f4 and up. It is not as sharp as triotar.
Compact size and retractable hood aperture.
The focus ring allows you to capture highly accurate focus to the specified destination.
Six blades aperture.
Very intense coating.
Great colors - unfortunately a little too soft focus. Apertures does not help.
Very carefully set the focus. Well balanced and fits snugly in your hand.
Build quality: ★★★★★
Excellent performance of the lens.
Market value / value of subjective: ★★★★☆Here are some sample pictures.
They were made with Sony Alpha 300.
Pictures were taken with aperture F/5.6 ISO-100
All photos without amendment in graphics programs.