The Canon EF 16-35mm f/4L IS USM lens is a fantastic lens covering both ultra-wide and wide-angle focal lengths on a full frame camera. When I use this lens it is mainly to utilise the ultra-wide-angle range of focal lengths that it offers. This can result in some really interesting and dynamic images but it needs to be used correctly in the correct types of scene. In my latest YouTube video I cover in depth how I use this lens and give lots of tips and advice on ultra-wide-angle photography, you can watch my video here.