Kelda 6.5mm f/3.5 Fisheye CS

Kelda 6.5mm f/3.5 Fisheye CS is a type of camera glass that creates a unique fisheye effect in photos. It is designed for cameras with APS-C sensors and has a focal length equivalent to 10.5mm on full-frame cameras. This lens has a manual focus, which means the user has to adjust the focus ring to get the desired sharpness. It has multiple lens elements, which help to reduce distortion and improve image quality. The lens coating helps to reduce flare and ghosting, which can occur when shooting in bright light. The build quality of this photographic lens is good, and it is durable enough to withstand regular use. The aperture of this lens is f/3.5, which means it can capture a good amount of light. It has six aperture blades, which create a circular bokeh effect in the out-of-focus areas of the image. The resolution of this lens is good, and it can capture sharp images with good detail. This lens is an alternative to other fisheye lenses on the market and is a good choice for photographers who want to experiment with different types of photography. The manufacturing time of this lens is not specified, but it is likely to be similar to other lenses in this price range.

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. Full frame equivalent focal length is 10.5 mm. Average brightness in this league