« on: November 29, 2013, 05:22:29 PM »
I use a pretty simple rig in my office for a 15' range shown in first image. The target is taped to the closet door at one end of the room, checked for plumb/level. The tape measure on the floor let's me easily adjust target distance. The target was printed at 150% to fill the page. You just need to remember to modify the "large target width" on the Tests Preferences to the size of the target if you choose to do this since the target width increases from 128mm to 192mm.
A light stand holds a PAR30 5K 15 watt 800 lumen LED reflector bulb in a Manfrotto Double Super Clamp at a 30-45 degree angle from target to minimize reflections. It's a bit close to the target now to accentuate the effect. I usually kill other lights in the room and close the blinds (even during the day) to minimize reflections/interference and shoot with spot metering on the target.
The LensAlign tool is mounted atop the stand at eye-level so I can easily verify AFMA after FoCal. It is also a good way to practice holding the camera still/steady when shooting with narrow DOF. You'd be surprised how much sway you can impart to camera between focus and capture. Shooting continuously can give you some idea.
I use a three axis level in the camera hot shoe once mounted on the tripod and measure distance from floor and side wall to camera and target centers to ensure it's square. You can also verify with a mirror taped in front of target if you aren't sure. I verified the setup with a mirror the first few times, now I don't bother.
A cheap, powered USB hub hanging on the tripod doubles the distance from my Mac which is on the side wall, allowing me to move the camera from end to end in the room. The Mac is near to door so its easy to setup in the hallway for longer lenses. I've also got a laptop if I need a longer test range.
I just calibrated a refurb 85f1.8 on both bodies using this setup with raw image captures. I use a Normal amount of test points for the first pass, then run it again with Many test points. I also run an aperture sharpness test to see how the lens performs. Then I hand hold a series of shots at the LensAlign target from various distances. Results for this lens on the refurb 6D are shown in the last three images.
Even with a calibrated lens setup, I find there is still a need for some post processing of RAW files. You can't really use RAW files asis from the camera. I used Aperture's auto enhancement when I got started. The resulting jpgs were often better than the out of camera jpgs. I now use some custom presets on DxO Optics Pro 9 and make adjustments if needed, particularly when I'm shooting in low light without flash.
AFMA does vary lens to lens and body to body. I have a 35f2 that requires AFMA -10 - it was noticeably soft wide open on both the 6d and my old 550D. You may still have a bum 6D, but its hard to tell from the tests you posted.