Nikon F Mount F 1.4
Related Faq
Q
The adapter is Nikon f mount ?
A
Yes, it is indeed Nikon f mount.  
Q
The adapter is Nikon f mount ?
A
Yes, it is indeed Nikon f mount. 
Q
Will this work with the pentax mount asahi takumar smc 50mm 1.4?
A
Yes. I have the same lens and adaptor on my Sony a7ll and it works beautifully. The m42 is also known as the 'universal' mount as other 3rd party camera and lenses also used it. I own 6 other K&F e-mount adaptors to different lens makers (ltm, MD, CF/CD, Nikon) and they all are well built with a nice snug fit. Highly recommended. 
Q
Will this work for a nikon f-mount (d3300) to sony e-mount? ( a7iii)
A
it could work with a nikon f-mount (d3300) to sony e-mount( a7iii). 
Q
Am I supposed to use an adapter to attach to a Nikon camera? If so, can you suggest an adapter?
A
No the other way this is to be able to mount the Nikon lenses onto the micro 4/3 camera body 
Related Video
Nikon Nikkor 50mm 1.4 AI Adapted to the Sony A6000
K&F Concept Nikon Lens Mount Aperture De-Click
Related Blog

Nikon Z Mount 50mm 1.4 Nikon 35mm 1.4 Z Mount Nikon 85mm 1.4 Z Mount Nikon F Mount 50mm 1.4 Sigma 70-210mm F.2.8 Apo Canon Ef Mount Cannon Ssc Adapter Sony Nex Sigma 30 F.1.4 Sony A Mount Sony E Mount 35mm F.14 Sony E Mount F.95 Sony E Mount F.98

Platinum 40.5 Mm Lens Filter Kit 35mm Nikon F Mount Lens Sony A Mount Prime Lenses Sigma Art Lens Canon Mount Nikon D610 Lens Mount Type 4 3 Adapter Canon Diy 35mm Lens Adapter 24-70mm Ef Mount Lens Fixed Aperture Wireless Adapter Sony Bdp-s185 Sony E Mount Tamron 10-24