Kinunor 400mm f/6.3

This camera glass is an alternative for those who want an affordable and lightweight option for wildlife, sports, and astrophotography. The photographic lens has a simple design with four glass elements and a lens coating that reduces glare and improves contrast. The optics are optimized for sharpness and resolution, making it a good choice for those who want to capture detailed images. The aperture of this glass can be adjusted from f/6.3 to f/32, allowing for creative control over the depth of field. The build quality of this lens is good, with a solid metal construction that feels sturdy in the hand. The bokeh, or the quality of the out-of-focus areas, is pleasing to the eye and adds a nice touch to portraits and wildlife shots. This camera lens is a manual focus lens, which means that the photographer has to adjust the focus manually. This may take some practice, but it allows for greater precision and control over the focus. The manufacturing time for this photographic lens is not mentioned, but it is likely that it is produced in large quantities to keep the cost low. Overall, the Kinunor 400mm f/6.3 lens is a good option for those who want a lightweight and affordable ultra-telephoto lens for their full-frame camera.