Features: Support accurate TTL & Autofocus. Built-in electric pins. Compatibility: for all Nikon lenses and Nikon DSLRS. Combined with 3 tubes in different length: 12mm?∨ 20mm?∨ 36mm. Made of aluminum (not plastic) that is more strong. Upgraded circuitry to work better with digital SLRs cameras and SLR lenses. Superior lock pin which can tighten the tube joint. Perfect for macro shooting. High quality and compact.
Specifications: Material: Aluminum?∨ ABS?∨ PC?∨ Lead Color: Black Macro tube size: 6.9 * 8.9cm / 2.7 * 3.5 (D * H) Macro tube weight: 190g / 6.7oz Package size: 13 * 7 * 7cm / 5.1 * 2.8 * 2.8in Package weight: 228g / 8.0oz
Auto Extension Tube Distance Reading of Master Lens Image Magnification Ratio Field Coverage(cm)
Distance From Lens Front to Subject(cm) Exposure Factor 12mm Inf. 0.24 10 * 15 21 1.5 0.5m 0.35 6.9 * 10.3 16 1.8 20mm Inf. 0.40 6 * 9 13 2.0 0.5m 0.51 4.7 * 7.0 14 2.3 36mm Inf. 0.72 3.3 * 5.0 7.7 3.0 0.5m 0.83 2.9 * 4.4 7.0 3.4 12+20mm Inf. 0.64 3.8 * 5.6 8.5 2.7 0.5m 0.75 3.2 * 4.8 7.5 3.1 12+36mm Inf. 0.96 2.5 * 3.7 6.0 3.9 0.5m 1.07 2.3 * 3.4 5.5 4.3 20+36mm Inf. 1.12 2.2 * 3.3 5.3 4.5 0.5m 1.23 2 * 3 4.9 5.0 12+20+36mm Inf. 1.34 1.8 * 2.7 4.5 5.6 0.5m 1.47 1.6 * 2.4 4.2 6.1 Package List: 1 * Metal Macro Extension Tube Set 1 * Bag 1 * User Manual (English)"
