|Bruce n Philly
Upload & Sell: On
I purchased Rieken's Focal tool for micro focus adjustment (MFA) on my 5D Mk II body. I chose their cheapest, non-automated software set. I am having the darndest time getting consistent results. To be fair, they do say that auto focusing systems have big variability, but I am having a hard time finding even an average result set.
Question: What is your experience and do you have any tips? Should I just upgrade for 20 more BPs and get the automatic tool that averages for you? Does anyone have the manual version and what is your experience with it?
While the documentation is plenty, the actual instructions for manual use is actually only about a few short paragraphs long and I am wondering what I can do to improve my technique. One thing I did do, was have the target professionally printed on thick matte paper both in regular size and a much larger target for my 500mm lens (which consistently back focused a ton). I shot with the target lit with both ambient sunlight as well as a few incandescent bulbs. I shot at various distances both longer, spot on, and shorter than Canon's recommended 50x. I also shot at various lens mm such as long, short, and mid zoom and even populated an excel spreadsheet with my results. My results were all over the map. Then as a test, for my 24-105, I had what I thought was a good average of say +3 MFA, I would shove the stetting to -6 MFA and got almost the same high QoF. Sheesh!!!
I purchased Reiken's Focal tool for MFA because.... well... I like gadgets and what the heck. Before Focal, I used focusing targets on my monitor at 100% and used focus/live view to adjust MFA (using moire pattern). This method worked really really well with generally consistent results. Of my 4 lenses and 1.4x teleconverter (equals 6 combinations), only 70-200 2.8 IS II lens was spot on and needed no adjustment. This also proved itself in the field where shooting say ducks in the water, I could see consistent rear focusing on one of my lenses out of the box. In short, MFA has improved my keepers no doubt about it.
Any help you can provide would be appreciated.
Bruce in Philly
PS: Own one watch, you know the time. Own two, and you have no clue what time it really is.