If you're a medium format photography enthusiast seeking precision and clarity, the Pentax Smcp-fa 645 120mm f/4 Macro Lens is your perfect companion. This lens, specifically designed for the Pentax 645D, offers a 35mm equivalent focal length of 96mm, transforming into a 77mm focal length when used with a film 645 camera. This versatility makes it an ideal choice for short telephoto and portrait photography.The lens boasts a super multi coating (SMC) that significantly enhances light transmission, ensuring each image you capture is radiant and crystal clear. With a 1:1 magnification ratio, you can achieve lifelike shots and capture intricate details with ease, thanks to the ability to focus as close as 15.4"". The built-in focus limiter is a unique feature, allowing photographers to preset the focusing distance range, thereby increasing the autofocus speed.The Smcp-fa 645 120mm f/4 Macro Lens offers unparalleled aperture control.