I have Nikormat Camera with k mount normal & wideangle lenses. Will these lenses fit in NIKON-D40, D40x,D80.?

Answer 1

Whither they be K (with adaptor) or F mount, the lenses of the Nikormat era will fit a Nikon D40, D40x, or D80, but with limited abilities.

You definitely won't have autofocus and you also won't have metering on the D40 & D40x.

Here's a chart that shows lens compatibility with different Nikon lens generations and different Nikon cameras.
http://www.kenrockwell.com/nikon/compatibility-lens.htm

Answer 2

This doesn't sound right. The K-mount is a Pentax mount, while Nikons use the F-mount.

If you have F-mount lenses, they may mount on the D40 and D40x or D80, but they won't meter if they're the older Nikon lenses.

If you have K-mount lenses, they will fit the modern Pentax digitals and work fine (in manual focus).

Answer 3

Pentax introduced the K-mount in 1975. At that time Nikon had been using its own lens mount for several years.

There may be a K-mount to Nikon body adapter but you'll have no camera-lens interaction so you'll be using manual focus and stop-down metering.

Answer 4

You probably mean F-mount.

Here's the Nikon Lens Compatibility Chart -- it will tell you what you want to know.

http://www.nikonians.org/nikon/slr-lens.html

Answer 5

Truly a k mount? K mount is a pentax mount, primarily.