Asahi Super-Takumar 1:1.8/55 [Excellent Condition]

I've selected the Pentax K mount, but it's an M42 screw mount.

Thank you for looking.
This is a Super-Takumar 55mm F1.8, late model, for sale.
It's soft wide open, and sharp when stopped down, making it a classic old lens.
This lens is known for its rainbow flare, and this particular lens produces it even with artificial light from a desk lamp. Please check the 11th photo.

● Optics
There is some dust inside, but no mold or haze, and the optics are clear and sharp.

● Function
The focusing ring, aperture ring, and aperture blades all operate smoothly.

● Appearance
There are minor scratches and dirt from use, but overall it's in good condition.

The sale includes the lens body and the original front cap.
Please understand that this is a very old, used item.
Please consider this before purchasing.