Astronar 135mm f/2.8 Auto

of f/2.8, which allows for good low light performance and shallow depth of field. The lens has a total of six glass elements arranged in four groups, which is responsible for producing sharp and clear images. The lens also has a multi-coating to reduce flare and ghosting, which can be a problem when shooting in bright light. The build quality of the lens is very good, with a metal body that feels sturdy and durable. The lens has a smooth focus ring that allows for precise manual focusing. The bokeh (the quality of the out-of-focus areas in an image) produced by the lens is very pleasing, with a smooth and creamy look. The lens does not have autofocus, so focusing is done manually, but this is not a problem for many photographers who prefer to have full control over their images. The aperture can be adjusted from f/2.8 to f/22, which gives the photographer a lot of flexibility when it comes to controlling the depth of field. The lens is compatible with a range of cameras, but it is important to check the mount before purchasing to ensure compatibility. The manufacturing time of the lens is not specified, but it is likely that it takes a few weeks to produce. Overall, the Astronar 135mm f/2.8 Auto is a high-quality photographic lens that produces sharp, clear images with a pleasing bokeh.

Optical design

Bright lens thanks to the high aperture value