Sony A58 Focus Adjustment?

So, I have a Sony A58 & have been using a Tokina AT-X Pro, 28-70 2.8 with it. I have been struggling with photos looking a bit off on sharpness which is odd for that lens as well as the A58 itself. I did a focus test using a calibration grid & it seems to be focusing just past the actual subject leaving me VERY slightly out of focus when I'm below F7. Is there any way to make an adjustment? I have searched the forums & can't seem to find an answer anywhere.

Apologies if I'm repeating a topic!

... or an A7 of some kind + LA-EA4.

I'm afraid for critical focus on the A58 you need to use MF. But the focus
peaking works very well. I use yellow and set it low for sharp lenses, medium for softer lenses.

Other ways are (1) to set AF-S and step back slightly after locking focus, or (2) switch to MF after locking AF, using either the lens switch (for SAM/SSM/HSM lenses) or the switch on the camera (for screw-drive lenses), and turn the focus ring with peaking. There is unfortunately no DMF mode on the A58.

For portraits where you have plenty of time to press buttons you can combine switching to MF with focus magnify (use gear menu3 to select focus magnify on the aperture preview button). Of course the A58 doesn't have fully customisable buttons either ... but most things can be done somehow.

If you have any more detailed questions you can ask them here or PM me. I still have an A58 and also Gary Friedman's excellent book for the bits I've forgotten. For example he says you can have focus peaking and focus magnify on at the same time, which I don't think I've done. He says turn peaking level high for this, and it's easier to see in b/w so set creative styles to b/w and use raw+jpeg to keep the raw colour image.

The A58 does miss out on a lot of modern clever stuff, but you can still nail focus with it if you take the trouble. Oh, I found that you can take a dozen shots in AF and get a range of actual focussing positions, and some are usuauly sharp. You can't judge misfocus in one image.

Edited by Miranda F - 20 March 2021 at 23:35

neilt3 wrote: Welcome to the forum . For micro focus adjustment you need an a68 , a77ii , a900 , a850 , a99 or a99ii .

Also the A77.