3M-7K 300mm f/5.6 MC

The 3M-7K 300mm f/5.6 MC camera glass is a manual focus ultra telephoto photographic lens that can be used on full frame cameras. It has an optical design that may not perform well in low light situations, but can compensate with higher ISO settings. The lens does not have aperture blades, which means it always works wide open. It has a 67mm filter diameter, and is 75mm long, which may require consideration when carrying it in a camera bag. The lens weighs 470 grams, so it should only be carried if necessary. The lens has multicoated glass elements to reduce glare and improve image quality. The manufacturing time of this lens is not mentioned. The lens has a fixed aperture of f/5.6 and is made of high-quality materials to ensure a durable build. The resolution of the lens is not mentioned, but it should be capable of producing sharp images. The lens is compatible with alternative mount options, but the mount type is not mentioned. The lens has a manual focus system, which means the user will have to adjust the focus themselves. The bokeh (background blur) of the lens is not mentioned.

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

Weights 470 grams so plan ahead, carry only if really necessary. With a lens filter diameter of 67 mm commonly filter size, gives you a variety of filter options. 75 mm long, requires consideration if you want to carry in the camera bag.