SMC Pentax 67 Macro 135mm f4 what kind of battery_Lithium Matte with a central fresnel

Matte with a central fresnel spot for easier focusing

The Lowepro Lens Trekker 600 AW II is a well built to purpose bag designed for the internal storage and transportation of a 600mm lens and camera body

with a built-in waterproof cover for harsh weather

this is arguably more useful

about 50cm

SMC Pentax 67 Macro 135mm f4 what kind of battery_Lithium Matte with a central fresnelThe SMC Pentax 67 Macro 135mm f4 is a macro lens for the Pentax 67 medium format SLR, providing magnification up to 1: 3. 2 without the use of extension tubes. In excellent condition, with minor internal dust, smooth focusing, and clean diaphragm.