Sony A6000 focusing issue or not ?

[ciprian90s]

Hello all,

I just bought my new A6000 and I've noticed some out of focus shots so I tried to make some tests.

Can you please tell me if this is normal behavior or I'm doing something wrong.

Test was done with camera on tripod. I've made 3 shots at f2.

1. Manual focus - centering the subject (text) right in the middle of center square (DSC00126_rs)

2. AF-S and Flexible Spot S. I've chosen the center spot (DSC00127_rs)

3. AF-S and Center (DSC00128_rs)

As you can see, each time the focus is moving a bit, with greatest shift when using AF-S and Center...

Lens used SEL50F18

Thanks for reply.

 

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[wedge]

That doesn't seem like an issue.  I'd say it's working exactly as expected.

The camera AF will almost always try to focus on the closest thing that it can focus on.

 

The area of the flexible spot is just a tiny point, and the area of the Center focus area is much larger.  

Which means that the way you've laid out the book, the Center focus can get a bit closer by focusing near the bottom of the Center area.

 

If you set the book exactly perpendicular to the camera, and then do the same test.  I think you'll find there is absolutely no noticeable difference between the focus modes.  And that should be proof that they are all working properly.

[Golem]

.............................

 

If you set the book exactly perpendicular to the camera, and then

do the same test.  I think you'll find there is absolutely no noticeable

difference between the focus modes.  And that should be proof that

they are all working properly.

    

"Perpendicular to the camera" ??? 

  

No Way. 

  

Try parallel. Then it will work as you describe.

  

It's pretty obvious that if a book page is set up

perpendicular to the camera all you see is the

edges of all the pages. Not a good test target.

  

`

[wedge]

Perpendicular to the direction the camera is facing.

You clearly understood what I meant. Why you gotta go breaking my balls all the damn time

[Golem]

Perpendicular to the direction the camera is facing.

You clearly understood what I meant. Why you gotta 

go breaking my balls all the damn time

  

Jeeeziz ... nothing is directed at you. When I do

see something described backwards, or in some

way leading the user who tries to perform it into  

some possible confusion, yes I speak up.

  

That's what it's about. It's not about you. And, so

what if I can understand something that happens

to be stated backwards ? I understand it cuz I've

been doing this stuff day in day out for 50+ years.

But I don't assume that many casual users, with

much less experience, are gonna see right clear

thru it and get it right way round. So, I point it out

and restate it properly.

  

-----------------------------------------------------------  

     

But now, maybe I can keep an eye out for your 

name, so to avoid you feeling as if you're being 

targeted ... cuz you're not. And I don't want you,

or anyone, to be feeling that way. Which OTOH

doesn't change my habit of reading carefully and

addressing stuff that just ain't right. I am still me. 

 

I have proof reading ingrained in me, by career.

Knowing for certain that I've avoided numerous

serious injuries and lawsuits and most probably  

prevented deaths, by my proofing, it's not likely

that I'll lose my proof reading habit. Acoarst I'm

aware that stuff on the forum is not life or death

issues ... so far, anywho :-)