TTArtisan 100mm F2.8 is a lens with bokeh as its highlight. There are bright edges around the bokeh ball, and the bokeh is beautiful and textured.Unlike modern lenses with creamy smooth bokeh, TTArtisan 100mm f2.8 produces the soap bubble bokeh effect. Soap bubble bokeh is characterized by a bokeh ball with a bright edge around their perimeters and will give stunning results. Feature: Full Frame Soap Bubble Bokeh Clicked Aperture M42-mount Use it on modern cameras with an adapter Full metal body Soap Bubble BokehUnlike modern lenses with creamy smooth bokeh, TTArtisan 100mm f2.8 produces the soap bubble bokeh effect. Soap bubble bokeh is characterized by a bokeh ball with a bright edge around their perimeters and will give stunning results.Get Creative Images TTArtisan 100mm f2.8 offers balanced sharpness with attractive bubble bokeh effect. It can be used to create special and beautiful nature and portrait photography.Full Frame with a Large Image CircleThe 100mm f2.8 is a full-frame lens, and the actual imaging circle can almost cover the medium format. When this lens is used on APS-C or Full-frame cameras, it is equivalent to retaining the better quality part of the large image circle. When this lens is used on medium format cameras, the faint vignetting makes the work more artistic. NOTEIt is a normal phenomenon that the centerline of thread mount lens is not aligned with the centerline of the camera, and it does not affect the use. If you need an adapter ring to use this lens, it is recommended to use an adapter with a centerline adjustment function.