Key Features Hasselblad X System 105mm (35mm Equivalent) Aperture Range: f/2.8 to f/32 Central Lens Shutter, 1/2000 sec Sync Minimum Focus Distance: 3.3' Internal Focusing with MF Override Front Filter Thread: 77mm Tripod Mount Ring Included Dedicated 1.7x Teleconverter 178mm Equivalent Focal Length