SMC Pentax 500mm f4.5 for Pentax K brand_Lightware 5 is a zoom lens

5 is a zoom lens for K mount

Use it to take pictures

The Kenko 2x Teleplus Pro 300 DGX is a modern

If you want to do some macro shooting with nice even ilumination

and there are new light seals in the back and rotator assembly

SMC Pentax 500mm f4.5 for Pentax K brand_Lightware 5 is a zoom lensThe SMC Pentax 500mm f4. 5 is a big, heavy lens: it weighs almost 3. 5kg and measures nearly 44cm long. It is not the sort of lens that you pack in your bag just in case. But it has a handy built in tripod mount, a "gunsight" for general aiming, and image quality is solid. Fun fact: this lens technically has an interchangeable mount, which can be switched between M42 and K mounts; only the K mount is included here. Cosmetic condition is excellent,