Asahi Pentax 67 Helicoid Extension Tube brand_Thinktank 8 IS USM is a

8 IS USM is a very compact full-frame wide angle lens with a fast f2

an excellent light meter

Interior dimensions are approximately 15x30x40cm

Capable of 1:1 magnification without additional accessories

A good quality two-strobe macro light that fires by PC sync cable (included) or as a slave flash

Asahi Pentax 67 Helicoid Extension Tube brand_Thinktank 8 IS USM is aThis helicoid extension tube lets you seamlessly adjust magnification for close up work with your Pentax 67 and nearly any Pentax 67 lens (not included). Less repeatable but more convenient than a "hard" extension tube set, this is a great addition to any Pentax 67 kit. In near new condition, with case.