DPReview.com is closing April 10th - Find out more

Should I return/replace my lens? EF-S 55-250mm sharpness/focus

Started Jun 7, 2018 | Questions thread
Zeee Forum Pro • Posts: 25,641
Re: Autofocus performance?

streetsnyc wrote:

Jura S wrote:

streetsnyc wrote:

Speaking of which, would the autofocus system of my camera be another issue? Because I believe that I achieved the sharpest image (using the watch as a test) by manually focusing. The difference is barely noticeable except when viewed at 100%, but it made me wonder if there's anything I can do to optimize AF accuracy? For instance, I use an AmazonBasics UV filter.

What mode of focus acquisition do you use?

I typically use One Shot autofocus, but have also experimented with AI Servo. I've read that AI Focus isn't reliable or is generally rubbish.

Good advice re cheap filters and hoods. I'll replace my filter with a better one. As for the hood, I'm not sure which to buy. Is there a specific form/shape I should look for? Or would a generic 58mm lens hood suffice?

You are going need to adapt to using AI Servo for anything moving. When the subject comes into focus in the viewfinder - fire away. Trust the process.

You might want to check on the AF-ON to help with AF.

 Zeee's gear list:Zeee's gear list
Canon EOS R7 Canon EOS R6 Mark II Canon RF 24-105mm F4L IS USM Canon RF 100-500mm F4.5-7.1L IS USM +1 more
Post (hide subjects) Posted by
BAK
BAK
BAK
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow