3M-7 300mm f/5.6

This camera glass has a fixed aperture of f/5.6, which may not be ideal for low light photography but can produce pleasing bokeh. It is a manual focus photographic lens with multiple lens elements and lens coating to reduce reflections and flare. The manufacturing time of this lens is not specified. The build quality is good, and it can produce high resolution images. There are alternative lenses available with different mounts and autofocus capabilities, but this lens is suitable for those who prefer manual focus and do not require a high aperture.

Optical design

Not the best in low light conditions but the lack of high aperture can be compensated with higher iso Has no aperture blades, this is among the rare lens which does not have aperture control function, works always wide open.

Physical characteristics

67 mm lens filter diameter, you are one step from the next standard filter size, buy step-up ring and bigger filter. Weights 470 grams so plan ahead, carry only if really necessary. 81 mm long, requires consideration if you want to carry in the camera bag.


Basic data


Filter (mm)67
Length (mm)81
Min focus (m)2.5
Weight (g)470
Focal Length (mm)300


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