Expanded Specifications Canon RF 1200mm F8L IS USM Lens
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| Optical Features / Specifications | |
| Image Size | Full Frame |
| Angle of View (Horzntl, Vertl, Diagnl) | 01°45′, 01°10′, 02°05′ |
| Lens Construction (Elements/Groups) | 26/18 |
| Special Optics | 2x Fluorite, 1X SUD, 1x UD |
| Number of Diaphragm Blades | 9 |
| Minimum Aperture | 64 |
| Closest Focusing Distance (m) | 4.3 |
| Maximum Magnification (x) | 0.29 |
| Control Ring | via Focus ring |
| Image Stabilizer OIS1 | 4 |
| Image Stabilizer IBIS x OIS2 | 4 |
| AF Actuator | Ring USM |
| Coatings | ASC, Super Spectra |
| Fluorine | Front |
| Accessories | |
| Lens Cap | E-185C |
| Lens Hood | ET-160 (WIII) |
| Lens Case/Pouch | Lens Soft Case LS1200 |
| Rear End Cap | Lens Dust Cap RF |
| Extender Compatibility | Compatible with RF Extender only |
| Other Accessories | Canon drop-in 52mm filters |
| Canon Drop-In Circular Polarizing Filter 52 (WIII) | |
| Canon Lens Short Hood ET-160B | |
| Specifications with 1.4x Extender | |
| Focal Length | 1680 |
| Maximum Aperture | 11-91 |
| Maximum Magnification | 0.41x |
| AF Possible | Yes |
| Image Stabilizer | Yes |
| Specifications with 2x Extender | |
| Focal Length | 2400 |
| Maximum Aperture | 16-91 |
| Maximum Magnification | 0.60x |
| AF Possible | Yes |
| Image Stabilizer | Yes |
| Physical Specifications | |
| Dust/Moisture Resistance | Yes |
| Exterior Coating | Heat Shield |
| Filter Diameter (mm) | 52 |
| Max. Diameter x Length (mm)3 | 168 x 537 |
| Weight (g) | 3340 |
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Although the lens features dust- and water-resistant construction, this cannot completely prevent dust or water droplets from entering the lens. |
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| Tested under CIPA standards | |
| Tested under CIPA standards | |
| Lens dimensions when in retracted state | |
