Any tips to use the Canon EF 400mm f/5.6L USM? Sharp enough for cropping?: Canon SLR Lens Talk Forum: Digital Photography Review
![Canon EOS R5 with Canon 400mm EF F5.6 USM L lens for birds- field test, Ibis, autofocus, handholding - YouTube Canon EOS R5 with Canon 400mm EF F5.6 USM L lens for birds- field test, Ibis, autofocus, handholding - YouTube](https://i.ytimg.com/vi/4DTq1i4nRIA/maxresdefault.jpg)
Canon EOS R5 with Canon 400mm EF F5.6 USM L lens for birds- field test, Ibis, autofocus, handholding - YouTube
![Vernon Chalmers Photography Training: Canon EF 400mm f/5.6L USM Lens: Professional / Consumer Reviews Vernon Chalmers Photography Training: Canon EF 400mm f/5.6L USM Lens: Professional / Consumer Reviews](https://3.bp.blogspot.com/-Nzhfz-GBcX4/Wzn3dVbgKSI/AAAAAAAAfDM/yZfC1mdHOWwPVCj_F3XE-yF4lrEGH4hlQCLcBGAs/s1600/Vernon%2BChalmers%2BPhotography%2BWorkshops%2BCape%2BTown%2B2017.jpg)
Vernon Chalmers Photography Training: Canon EF 400mm f/5.6L USM Lens: Professional / Consumer Reviews
![Canon EF 400mm f/5.6L USM,digital camcorder,SLR DIGITAL CAMERA, digital camera, camcorder, camera, hd, lenses, CAMCODER ACCESSORIES, ACCESSORIES Canon EF 400mm f/5.6L USM,digital camcorder,SLR DIGITAL CAMERA, digital camera, camcorder, camera, hd, lenses, CAMCODER ACCESSORIES, ACCESSORIES](https://files.ekmcdn.com/hdewcameras/images/canon-ef-400mm-f-5.6l-usm-243-p.jpg?v=a118a6a3-6256-4ed9-97dc-22e0a4016469)