For Canon EOS Series VILTROX DG-C Camera Automatic Close-up Ring Macro Mount

1. Applicable cameras: for all Canon EOS series 2. Applicable lens: EF/EF-S mount lens 3. Configuration: 12mm+20mm+36mm+ front and rear covers 4. Material: metal, plastic 5. Length: 12mm, 20mm, 36mm 6. Inner diameter: 62mm 7. Main lens clear distance: inf./0.5m 8. Scene magnification ratio: 12mm: 0.24/0.35, 20mm: 0.4/0.51, 36mm: 0.72/0.83 9. Coverage: 12mm: 10x15/6.9x10.3, 20mm: 6x9/4.7x7, 36mm: 3.3x5/2.9x4.4 10. Distance between lens and object: 12mm: ab.21/16, 20mm ab.13/14, 36mm: ab.7.7/7 11. Exposure factor: 12mm: 1.5/1.8, 20mm: 2/2.3, 36mm: 3/3.4 12. Weight: 72 grams, 84 grams, 112 grams Packing list: -12mm close-up ring x 1 -20mm close-up ring x 1 -36mm close-up ring x 1 -Front cover x 1 -Back cover x 1 -Instruction manual x 1