Decision tools · Mount Adapting
Pick the mount your glass is on and the body you're thinking of moving to. We work out whether a plain adapter gets you there, show the millimetres it turns on, and say what it does to your framing.
37 mounts on record·flange distance, coverage and crop for each
Pentax K glass on a Nikon F body
Only with corrective optics
Nikon F sits 1.04mm further from the sensor than Pentax K. An adapter can only add distance, never remove it, so infinity focus is impossible without corrective glass in the adapter — which costs sharpness and usually a stop of light.
Coverage & framing. Both are Full frame, so the lens covers the sensor fully.
The camera maker's own first, then by what the electronics pass through, then price.
GearFrame’s recommendations are guidance to help you decide, not professional advice. Specs, prices and compatibility can change, so check them with the retailer or manufacturer before you buy. Disclaimer
Lens mounts down the side, current camera mounts across the top. Figures are flange focal distance in millimetres. Click any cell for the full answer.