Lens adapters and mirrorless cameras are certainly getting their fair share of exposure these days (mind the pun). Many Sony A-Series users can be seen sporting a variety of different brands of lenses on their mirrorless beasts, and of course Fuji have their M-Mount adapter for the X-series cameras. After looking into the various lenses folks were using on their mirrorless cameras I decided to purchase a cheap Canon EOS to Fuji X lens adapter and see what the hip rage is all about.
In case you're already looking at doing this based on the few quick snaps on here, this is the eBay link that I purchased my adapter from for ~$15 AUD. It's solid and does the job I expected admirably.
So why does this combo work so well on a mirrorless camera, particularly the XT-1, so well?
Firstly, Focus Peaking in manual mode with split screen focus makes it exceptionally easy to get focus on point. The XT-1 is well known for it's fantastic large Electronic View Finder (EVF) and it accommodates the split image exceptionally well. What's also great is that the cropped focus image changes according to the focal point you choose, which, combined with spot metering that matches the focal point, provides a set of features uncommon to most other systems.
The second point that makes the XT-1 and a lens adapter work so darn well is the electronic and mechanical shutter combo that allows it to max out at an incredible 1/32000 of a second. Basic lens adapters offer no electrical communication between the lens and camera meaning the lens is stuck at it's widest aperture. For typical DSLRs this makes using apertures like F1.4 difficult to use in broad daylight without the use of neutral density filters. This problem is easily overcome by the Fuji's electronic shutter, as demonstrated in the picture of the video surveillance camera
Another point to consider when using a lens adapter in these circumstances is how it changes the minimum focusing distance of full frame lenses. My Sigma 35mm was able to focus at ~15cm, which is only focuses to 40cm on my Canon 6D. Also, don't ever trust and Aussie giving you a spoon full of plain vegemite. You will die!
Focusing with the Sigma 35mm is a breeze. After shooting with fly-by-wire lenses like many of the native Fuji lenses for many months now, the Sigma was dead easy to get used to in manual mode and made me very conscious of exactly what I was focusing on, making sure it was on point. I was surprised at how easily I could focus on my neighbour's cats in poor light. I have not tested my Canon 135mm extensively, however it too was easy to focus with and having a 200mm equivalent focal length on my Fuji without having to dish out on a new lens is a greatly appreciated.
It's early days but I can definitely see adapting different lenses to my XT-1 as something to get addicted to. I've noticed too that manually focusing helps conserve the XT-1's battery-life since it's not dedicating power to the focusing mechanism in heavy duty glass beasts like the XF56. If you're sitting on the fence about trying this sort of rig out I suggest you get on over to my side and experience it.