« on: May 24, 2012, 02:59:59 AM »
Just bought and tried the pro version with the lenses listed in my profile and all my lenses are adjusted to frontfocus.
For example my 24 I had at +16 and where very happy, so I wanted to see what FoCal would do, it adjusted it to +9 and it's way in front.
The 50 L, oh my, that is the reason I will be sent to an early grave. The ACTUALLY told me, directly from mailing with FoCal, that the 50 L is almost too inconsistent to adjust. They say to try to adjust it 7 EV instead of 10. I didn't help.
It was at +6 and Focal said it should be at 0, and now it's way in front as well.
I had my 85 L at +8 and FoCal wanted it to be at -5, and now it's way in front.
The WORST PART of this whole deal is; It's stated that phase AF is very hard to get right. No matter how much you adjust, it's always going to be very much different from shot to shot (IF you defocus completely between each shot).
So what I have learned is that no matter if you own the baddest that is offered by the biggest brand and paid a kid and a kidney, properly focused images are only guranteed at ONE specific distance in ONE specific light.
"Adjust to your most used distance"
Maybe I will go back to the 5d2 and the Eg-S and some good manual lenses, because AF isn't good enough. What's the damn point in having 61 af points when you can only use the center one, go out on the edges and the 50 is waaaaay in front compared to center.
I'm not sure if the FoCal is to blame, maybe it's just the AF of 2012, but it frontfocused all my lenses. I got better results by just trying myself.
That being said, I will try under daylight and not under artificial light today. I'll update this message if the results change dramatically.
So, forget what I said, this software is the greatest thing ever invented. Test invironment is crucial!!!
Here's what NOT TO DO!:
Use artificial light.
Not sturdy setup (tripod)
Here's what TO DO!:
Use daylight bright shadow (10 EV)
Use a very sturdy tripod
Use the correct distance 50x focal.
My god, the 50 L works now, it's the first time I have ever been able to use it for anything. What a lens. The AF isn't the most consistent, but at least now I know if it misses, it's because it misses. Not because of misalignment, and that is A LOT easier to accept.
I had set my 35 to -9 from weeks of testing, I had set my 24 to +16, and FoCal set them to, guess what? -9 and +16.
The 50 I was way off, the 85 L was set in between the value from my first test and my own setting, so I guess that's perfect also.
Buy this software if you have fast lenses, it will save you two heartattacks, 15 years lifeshortening and suicidal moments.