Hasselblad 63.5-85mm variable extension tube brand_Profoto 6 is a relatively compact

6 is a relatively compact long lens for 4x5 cameras

It's a rapid rectilinear design that covers 5x7

The SMC Pentax-M 200mm f4 lens is a good quality telephoto lens for Pentax K-mount cameras

Olympus Digital 40-150mm f3

nothing more nefarious

Hasselblad 63.5-85mm variable extension tube brand_Profoto 6 is a relatively compactThis variable extension tube for Hasselblad V series cameras and lenses provides helicoid based continuous extension between 63. 5 85mm. Ideal for close up work in the field, where a bellows may be less practical and this tube maintains shutter firing and lens cocking functions without the need for cable releases. In excellent condition, with minor cosmetic wear.