using Minolta's extension rings No.1, 2, & 3 --- No.1 and step up ring 55->58mm are
glued together, since Minolta rings use odd Ø57mm size. No.1 + 2 works for 50mm,
No.1 + 3 works for 85mm lens perfectly. No.1 + 2 + 3 is good for longer FL lenses.
58mm lens cap fits on this DIY hood.