Upload & Sell: Off
Joshua J. Ahern wrote:
yes I tried all the negatives values; no confirmation dot in this area.
Maybe I made a mistake; I reviewed the exif of my photos (those I inclosed here), and they were set to AI servo AF
I remember switching it to One Shot before starting the dot-tune. weird..
Coulld it be the problem? that the AI servo AF was on?
Use one shot, single focus point, tripod, shutter release cable or timer. 50 times focal range. That should be 68 feet for 300+1.4 TC.
I just mounted snapsy's "new" chart on a clip board and found something to hang it from, then taped it to keep it from moving.
After each adjustment and shutter release, make a new adjustment, de-focus the image, then retake the image.
I would look at each image by zooming in to see where the quality started degrading or getting better.
Leave the setup as is, take the memory card inside and look at 100% in Photoshop or similar program.
I did this twice to see if the results were repeatable.
Just select the value you think is the sharpest.
If nothing is close to what you get from manually focusing, then you probably need to send the camera and lens in to have them calibrated.