Zeiss-Ikon Nettar 517/16 lens mount_Rollei QBM/SL sturdy ball head suitable for

sturdy ball head suitable for DSLR and medium format systems (it'll hold up to 6kg)

costs about a stop of light

but honestly

with an effective built-in image stabilizer system

the removable three-lens turret allows for easy format adjustment

Zeiss-Ikon Nettar 517/16 lens mount_Rollei QBM/SL sturdy ball head suitable forThe Zeiss Ikon 517 16 is a compact folding camera that shoots 6x6cm exposures on 120 rollfilm. It's equipped with a scale focusing 75mm f6. 3 Novar Anastigmat lens in a three speed Vario shutter. In excellent condition, with minor cosmetic wear. Lens is clean, bellows are good, and the shutter works well. About as close to pocketable as medium format gets. Includes leather case.