Chromega B lamphouse & Power Supply  type_Darkroom The Vivitar AT-22 extension tube

The Vivitar AT-22 extension tube set is for Pentax K mount lenses

function is very good: autofocus is not as quick as with native Sony lenses

but you can rotate it so that the flash tube is vertical or horizontal

It's been film tested

for cleaner late-night shooting

Chromega B lamphouse & Power Supply &nbsptype_Darkroom The Vivitar AT-22 extension tubeThis Chromega B is a dichroic head designed to fit Omega B series enlargers. In good working order, this head provides filtration for cooler enlarging or easy dial based contrast control for black & white. Light cosmetic wear, most notably missing trim plates on the dials. Includes lamphead and power supply only.