Expanded Specifications Canon RF 800mm f/11 IS STM Lens
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| Optical Features / Specifications | |
| Image Size | Full frame |
| 35mm film equivalent focal length (mm) | 800 |
| Angle of view (horzntl, vertl, diagnl) | 02°35′, 01°40′, 03°05′ |
| Lens construction (elements/groups) | 11/8 |
| No. of diaphragm blades | N/A |
| Minimum aperture | 11 |
| Closest focusing distance (m) | 6 |
| Maximum magnification (x) | 0.14 |
| Distance Information | Yes |
| Image stabilizer | 4 |
| AF actuator | STM |
| Accessories | |
| Lens cap | E-95 |
| Lens hood | ET-101 |
| Lens case/pouch | LZ1435 |
| Rear End Cap | Lens Dust Cap RF |
| Magnification with Extension Tube EF12 II | Not compatible |
| Magnification with Extension Tube EF25 II | Not compatible |
| Extender Compatibility | RF extenders only |
| Specifications with EXTENDER RF 1.4X | |
| Focal length | 1120mm |
| Angle of view (horzntl, vertl, diagnl) | 01°50′, 01°10′, 02°10′ |
| Maximum Aperture | F16 |
| Maximum Magnification | 0.19x |
| AF Possible | Yes |
| IS Operates | Yes |
| Specifications with EXTENDER RF 2X | |
| Focal length | 1600mm |
| Angle of view (horzntl, vertl, diagnl) | 01°20′, 50′, 01°30′ |
| Maximum Aperture | F22 |
| Maximum Magnification | 0.28x |
| AF Possible | Yes |
| IS Operates | Yes |
