TheMissouriShooter wrote in post #7978860
I have the Lensagling Pro . I micro-adjusted 8 lens in less than an hours. It took 10 minutes to align the site window so that I could see the red dot. Once I forgot to close the front window prior to taking the shots. I have yet to adjust my 500 f/4 I think the long ruler is going to be necessary.
That makes me feel better. It took about 10 minutes to do my 300 f4. Of course I change positions with each lens, doing a 25x FL thing. The ruler on the lite version worked fine for the 300.
tvphotog wrote in post #7979004
If you use a zoom lens such as a 24-105L, how do you check focus? At 24mm? At 105mm? In the middle range? At each, but which microadjustment value do you use?
I do it at both ends. The adjustment will be different for each focal length so you have to figure the adjustment that best accommodates both focal lengths. It's worthwhile to know that some zoom lenses will drive you nuts trying to calibrate but I've only heard of this with third party lenses.