I've just been looking through a few images from last year, and decided that this one is worth pulling. It was taken with the Canon 800mm f5.6 IS lens, with the 1.4x Mk III converter mounted, for an amazing 1120mm of focal length. Even more amazing is that this was with just a monopod, and yet the sharpness is all there. I've recently been using my 500mm much more, but today I picked up the 800mm as my target was small and likely to be skittish. I never found the bird, but whilst having a go at other things I was reminded quite how much magnification 1120mm actually is, and quite how viable a combination the 800mm with a converter actually is. Now that I use a tripod and full gimbal head practically all the time, I wonder if this might be a set-up I use frequently to get large in-the-frame images of passerines out on Wanstead Flats, which is where I took this Wheatear.