The bottom line: Excellent color, sharpness when it counts and attractive bokeh. I'll have to try it with video next!
Before I get onto the photos, here are a few 'specs' for the techies:
Pentax K (PK) to Samsung (NX) mount adapter: KECAY Mount Adapter 18011
Mounting the lens went without a hitch. Switched to 'Manual" mode and I'm ready to get my first shots.
Note: All photographs are presented 'as photographed' (not edited or enhanced, but each image was resized for web posting from their original 23.6MB JPEG setting). Additionally, all photographs were handheld camera.
Photograph 1: Spider
Soft background with nice color. The spider is the focus point for the eye, while the web provides subtle intricacy.
Photograph 2: Cactus Garden
This photograph was taken just at sunset - no direct light - yet the cactus seems vibrant in some visually attractive way.
I used a circular-polarizer for this shot.
I took this photo for color and depth of field. The sun was low in the sky about 1/2-hour before sunset. By manually focusing on the sign at close range, the mountains appear soft in the distance.
f4 1/60sec EV 0 ISO200 Focus Metering: Center Weighted Average
Photograph 6: Light and Shadow
The photograph below sold me on the Kalimar 50mm lens. The image is sharp. Nice light and stripe shadows. The texture on both the Agave on the left and the Hedgehog cactus on the right is gorgeous!
f5,6 1/400sec EV 0 ISO100 Focus Metering: Center Weighted Average
Photographs: 7 & 8
Flowers are a good way to see how a lens works with primary colors standing out in the 'greenscape'. The color in these two photographs seems a little over-saturated. But I love the bokeh and how my eye seems to hunt to find areas of focus, yet wanting to dissolve into the background.
f4 1/125sec EV +0.3 ISO100 Focus Metering: Center Weighted Average
Photograph 9: Palm Row
I was testing a circular polarizer with this image.