Specifications:

Elements/Groups: 8/8
Fixed 
Aperture: f/8
Diameter: 3"
Length: 3.4"
Weight: 360 grams
Coating: 
Multi
Filter Size Rear: 30.5mm
Filter Size Front: 72mm

Contents:
* Mirror Lens
* Front and Rear 
Lens caps
* Storage Pouch
* Specifications and information sheet
* 30.5mm filters - ND2， ND4 and Skylight
* T-Sony Alpha Minolta AF mount adapter