Nikon D850 brand_Yashica This adapter is does not

This adapter is does not preserve infinity focus and is intended for use with bellows (though it will fit directly to a camera

roughly equivalent to a 35-70mm lens on 35mm

with only very minor wear and under 8000 actuations

this may not be the head for you

Nikon D850 brand_Yashica This adapter is does notThe Nikon D850 is a fast, modern 45mp full frame DSLR body with a 153 point AF system, 4k video at up to 30fps (and 1080P at up to 120), built in Bluetooth and Wifi, and continuous shooting at up to 7fps with autofocus. This D850 is in near new condition, with under 100 actuations yes, under 100 (one hundred). Very nice. Includes battery, charger, strap, and USB cable.