Manfrotto 029 battery cover The Minolta Flat Diffuser is

The Minolta Flat Diffuser is used for illuminance values and lighting ratios

Both mount faces attach smoothly and lock securely

The Nikon DB2 is an anti-cold battery holder for the Nikon F3

and film winding is accurate

I'm not sure

Manfrotto 029 battery cover The Minolta Flat Diffuser isThe Manfrotto 029 is an old school, all metal 3 way head with a hex plate quick release system. Solid! This head will hold everything up to a 4x5 and possibly beyond, depending on how far beyond. In excellent condition, with minor cosmetic wear. The hex plate's camera mounting surface has been recovered with sturdy, grippy rubber (these often had cork pads which would wear away)