Canon Community

TechSpotlight · 10-21-2020

Hello there,I recently purchased a Canon 15-85 for my Canon T7i and noticed that some of my photos taken with this lens were awfully blurry on the left side of the image as compared to the right, and I have no idea why. Anyone have any ideas? Is th...

TechSpotlight · 12-25-2019

Hey all, I currently own a Canon T2i and I have decided to upgrade from it. I currently own a Canon 15-85 USM and a 55-250 IS STM lens and I have been eyeing the Canon T7i for quite some time. I normally shoot vehicles and rail (cars, buses, trucks...

TechSpotlight · 01-21-2019

Hey, I just bought a used 18-135 IS STM recently. Unforunately, I've ran into a problem where on the top right corner of the image, it looses its sharpness. Here is a sample photo from the 18-135: Compared to a sample photo from my old 18-55 IS (N...

TechSpotlight · 11-03-2020

Thanks for the suggestions, I decided to try this with a whiteboard full of text and poiint my camera (placed on a tripod) at it. I don't think the lens is decentered based on this test. https://imgur.com/a/nRZ1e6c While the corners are a bit softer...

TechSpotlight · 10-21-2020

Yes, I originally had that 18-135 and unfortunately a few months ago just after the pandemic started, I damaged it beyond repair. So I purchased this lens to use as my main walk around lens. Thanks though, I will definetely try the newspaper test w...

TechSpotlight · 01-23-2019

Thanks all for your assistance. I tried stepping it down to f/8 and made the right side improve quite a lot. It's still a little bit blurry but barely noticable to my eye at all.

TechSpotlight · 01-22-2019

Apologies, I'll post larger versions of the image from the 18-135 below:If you zoom in to the top right corner, you can see what I'm talking about.And the 18-55 IS for comparsion below:The focal length on the photo taken with the 18-55 IS was 39 mm a...

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Canon 15-85 - left side of image is blurry

Canon T2i upgrade

Canon 18-135 sharpness issues

Re: Canon 15-85 - left side of image is blurry

Re: Canon 15-85 - left side of image is blurry

Re: Canon 18-135 sharpness issues

Re: Canon 18-135 sharpness issues