The A034TM Tripod Collar Mount for 70-210mm f/4 Di VC USD from Tamron is a lightweight magnesium spare or replacement part. Its Arca-type base is compatible and with most ball heads or clamps on the market.

• Canon EF Mount/Full-Frame Format
• Aperture Range: f/2.8 to f/32
• One LD and Two XLD Glass Elements
• eBAND, BBAR, and Fluorine Coatings
• USD AF Motor, Full-Time Manual Focus
• VC Image Stabilization
• 1:1 Max. Magnification, 11.8" Min. Focus
• Rounded 9-Blade Diaphragm
• Moisture-Resistant Construction
• Compatible with TAP-in Console

• EF-Mount Lens/Full-Frame Format
• Aperture Range: f/2.8 to 22
• XGM and LD Glass Elements
• Vibration Compensation
• eBAND and BBAR Coatings
• Fluorine Coating on Front Element
• Ultrasonic Silent Drive AF System
• Built-In Lens Hood
• Rounded 9-Blade Diaphragm
• SILKYPIX Developer Studio Software

• Canon EF-Mount/Full-Frame Format
• Aperture Range: f/2.8 to f/22
• One XLD Element, Five LD Elements
• eBAND, BBAR, and Fluorine Coatings
• Ultrasonic Silent Drive Autofocus Motor
• VC Image Stabilization
• Dust and Moisture-Resistant Construction
• Removable Arca-Compatible Tripod Mount
• Rounded Nine-Blade Diaphragm

• Canon EF-Mount Lens/Full-Frame Format
• Aperture Range: f/5 to f/40
• Three Low Dispersion Glass Elements
• eBAND, BBAR, and Fluorine Coatings
• Ultrasonic Silent Drive Autofocus Motor
• VC Image Stabilization
• FLEX ZOOM LOCK, Zoom Lock Switch
• Moisture-Resistant Construction
• Removable Arca-Type Tripod Mount
• Compatible with TAP-in Console