Vivitar 28mm f/2.5 (Kino, Kiron)

The lens has good build quality and was manufactured in the past. It has 6 lens elements and a lens coating to reduce glare and improve image quality. The aperture can be adjusted from f/2.5 to f/22, allowing for greater control over depth of field. The lens produces pleasing bokeh (out of focus areas) and has a high resolution, making it suitable for landscape and architectural photography. It is a manual focus lens, meaning the user must adjust focus by hand, but this allows for greater precision and control. Alternatives to this lens include autofocus lenses or other manual focus lenses from different manufacturers. Overall, the Vivitar 28mm f/2.5 (Kino, Kiron) is a good quality lens with a bright aperture and good image quality, but may require some effort to carry due to its weight and size.

Optical design

Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Bright lens thanks to the high aperture value

Physical characteristics

61 mm long, this small lens should be always in the camera bag. With a lens filter diameter of 67 mm commonly filter size, provides a range of filter options. Weights 314 grams so plan ahead, carry only if really necessary.