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Some help with my new 10-18mm IS STM please?

Started Dec 7, 2016 | Discussions thread
Kevin Macza Regular Member • Posts: 287
Re: Some help with my new 10-18mm IS STM please?

ispyej wrote:

I have had some really great photo opportunities recently, but have a concern about my 10-18mm. I have shot several photos on it now, but none of them seem as sharp as other images I've seen online shot with the same lens. To emphasise, I can't seem to find any point on the photo that is sharp, as I zoom in on the photos it all seems a little out of focus.

With my 70D, the 10-18mm produces images with sharp focus in the center of the frame between f/4.5 - f/8; however, details become more blurry toward the edges of the frame (mitigated somewhat as you stop down)  As other have said, there could be some diffraction effect at f/11 causing general loss of detail.  But still, it does appear as if nothing is really in sharp focus in your images.  Definitely worth trying another copy of the lens.

 Kevin Macza's gear list:Kevin Macza's gear list
Panasonic Lumix DMC-ZS15 Canon EOS 70D Canon EF-S 18-135mm F3.5-5.6 IS STM Canon EF-S 18-55mm f/3.5-5.6 IS STM Canon EF-S 55-250mm f/4-5.6 IS STM +1 more
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