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Support accurate TTL & Autofocus.
Built-in electric pins.
Compatible with all EF and EF-S Canon lenses.
Combined of 3 tubes with different length of: 13mm, 21mm, 31mm.
Made of high-quality Aluminum material that is stronger.
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:
Color: Red
Materials: Aluminum, PC, ABS
Compatibility: For all EF and EF-S Canon lenses
Macro tube size: 6.2 * 8cm / 2.4 * 3.1in (D * H)
Package size: 9 * 7 * 7cm / 3.5 * 2.8 * 2.8in
| Auto Extension Tube | Distance Reading of Master Lens | Image Magnification Ratio | Field Coverage (cm) | Distance From Lens Front to Subject (cm) | Exposure Factor |
| 13mm | Inf. | 0.24 | 10 * 15 | 21 | 1.5 |
| 0.5m | 0.35 | 6.9 * 10.3 | 16 | 1.8 | |
| 21mm | Inf. | 0.40 | 6 * 9 | 13 | 2.0 |
| 0.5m | 0.51 | 4.7 * 7.0 | 14 | 2.3 | |
| 31mm | Inf. | 0.72 | 3.3 * 5.0 | 7.7 | 3.0 |
| 0.5m | 0.83 | 2.9 * 4.4 | 7.0 | 3.4 | |
| 13+21mm | Inf. | 0.64 | 3.8 * 5.6 | 8.5 | 2.7 |
| 0.5m | 0.75 | 3.2 * 4.8 | 7.5 | 3.1 | |
| 13+31mm | Inf. | 0.96 | 2.5 * 3.7 | 6.0 | 3.9 |
| 0.5m | 1.07 | 2.3 * 3.4 | 5.5 | 4.3 | |
| 21+31mm | Inf. | 1.12 | 2.2 * 3.3 | 5.3 | 4.5 |
| 0.5m | 1.23 | 2 * 3 | 4.9 | 5.0 | |
| 13+21+31mm | 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 * Macro Extension Tube Set
1 * Bag
1 * User Manual
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