Ring-necked Ducks (Aythya collaris) at Rush Lake at the Wichita Mountains National Wildlife Refuge in Comanche County, Oklahoma, United States on February 15, 2023
Ring-necked Ducks (Aythya collaris) at Rush Lake at the Wichita Mountains National Wildlife Refuge in Comanche County, Oklahoma, United States on February 15, 2023
| Artist | John Moyer |
| F Number | 11.0 |
| ISO | 1000 |
| Shutter Speed Value | 1/512 |
| Focal Length | 800.0 mm |
| Focus Distance Upper | 64.14 m |
| Focus Distance Lower | 50.04 m |
| Lens Model | EF100-400mm f/4.5-5.6L IS II USM +2x III |
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Copyright John Moyer, All Rights Reserved. https://www.rsok.com/~jrm/