Question on my Sony 70-200mm f2.8 gm lens

Started 2 months ago | Discussions
imperial
imperial Forum Member • Posts: 82
Question on my Sony 70-200mm f2.8 gm lens

I've purchased this lens 2 months ago and wasn't only recently that I've got it out to use it. I have rented this lens out before and was blown away by its sharpness when i bought it to Japan during last winter. The current one i have hasn't been had its firmware update yet, but I checked it was mainly concerned about contrast and auto focus issues.

Well after testing it out and loading the pictures to my computer I was surprised how not sharp the photo's were. Be as it may, the previous rented lens were used mostly at street level, but this time I used it for landscape and it was not even close to being sharp which is giving me great concern. Were there known issue of this out there? Were there defected ones?

I'm going to update it first and bring it out tomorrow to test the lens out. If the results coming back were the same than I'll probably think about bringing it back to Sony.

Any past experience of heard or seen article about this as i have already tried googling it will be much appreciated.

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Sony a7R III Canon EF 50mm f/1.8 STM Sigma 24-35mm F2 DG HSM Art
lehill
lehill Veteran Member • Posts: 5,278
Re: Question on my Sony 70-200mm f2.8 gm lens

You'll get your best answers in the Sony FF E-mount forum. It's more likely you'll find other owners of this lens.

DXOMark ranks the SEL70200GM very highly so you made a good choice of lens. It's unlikely you received a bad copy but not impossible. The latest firmware update does the following:

"This update (version 05) improves the accuracy of the contrast AF at distant shooting, making it easier to focus when the aperture is narrowed down to F11 or higher."

Continue your testing after the firmware update. If you still see a problem then post your question in the Sony forum - with an example photo containing EXIF data.

Just a reminder: Shooting at small apertures (f/11, f/16, etc) will naturally result in a softer image due to diffraction.

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Lance H

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