FE SEL24-105 soft focus

Started 7 months ago | Discussions thread
havoc315 Veteran Member • Posts: 5,040
Re: FE SEL24-105 soft focus
1

havoc315 wrote:

JERumball wrote:

OK thanks.

I will try tighter crops next time, but I am trying keep everything the same for all players because these are all getting cut out and made into a composite. I need to leave room for the taller players.

On the topic of front focussing, I think this lens is indeed front focussing at F8, but not at F4. I did a little test just now where I focused on the middle of 5 batteries with flexible spot small. One shot is at F4 the other is at F8. The focus appears to shift forward at F8. These were all shot at 105mm,, auto ISO, 1/250s. Would you agree that the lens should be sent back or am I misinterpreting the results?

Focus shift is a normal effect, nothing wrong with the lens. The solution is shooting AF-C or DMF

Actually.. did you buy your lens new or used?

I just remembered..... When released, a batch of the Sony 24-105 has an abnormally significant focus shift issue, Sony offered a repair for the lenses that fell within a certain serial number range.

https://www.imaging-resource.com/news/2018/02/13/sony-announces-potential-focusing-issue-with-new-24-105mm-f-4-g-oss-lens

Any newer 24-105 lens shouldn't be having the issue, at least to an abnormal degree.

Some level of focus shift is unfortunately, quite common. The solution is to focus with the aperture stopped down. On Sony cameras, that means focusing in AF-C, or in DMF.

Focusing in AF-S will lean to focus shift issues.

 havoc315's gear list:havoc315's gear list
Sony a7R III Sony a7 IV Sony FE 55mm F1.8 Sony FE 70-200 F4 Sony FE 90mm F2.8 macro +9 more
Post (hide subjects) Posted by
(unknown member)
Lan
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow