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  1. The reviews I included measure sharpness in LW/PH and have numerical results for the 18-105 and 18-135 (16-70 LW/PH results are summarized qualitatively). You can easily see that, at f5.6 for example, and select focal lengths, resolution at the center/edge in LW/PH: 18mm 35mm 70mm max (105/135mm) 18-105: 3615/2439 3620/2669 3411/2538 3503/2278 18-135: 3300/2350 3100/1900 2900/2600 3100/1200 [Note that for a 24MP (6000x4000), 4000 LW/PH is the maximum that can be achieved; that puts the above results in context.] The summary star rating includes qualitative assessments as well but the numerical measurements for sharpness, the only aspect of optical performance I was mentioning, are cut and dry results. I view high resolution, as measured in LW/PH, an important part of image quality as it determines the largest prints (or smallest crop sections) that can be made.
  2. I've only used the 18-105 and it's been a great all-around lens; the constant f4 and the fact it doesn't extend when zooming are great features. I believe it's also the sharpest APS-C zoom lens from Sony, measuring sharpness in LW/PH, from these reviews. Only prime lenses will do better. http://www.opticallimits.com/sony-alpha-aps-c-lens-tests/991-sony18105f4oss?start=1 https://www.ephotozine.com/article/sony-e-18-135mm-f-3-5-5-6-oss-review-31968 https://www.ephotozine.com/article/carl-zeiss-vario-tessar-e-16-70mm-f-4-za-oss-t--review-24059
  3. Using an a6500 with an 18-105G zoom (with lens firmware version 0.4) and just noticed that in a very small number of jpegs (26 out of 569), the lens info in the EXIF data is incorrect. Here is what it looks like when it's wrong [A6K01083.JPG]: But in the vast majority of cases this info is correct and looks like [A6K01140.JPG]: I'm using exiftool version 10.8 https://www.sno.phy.queensu.ca/~phil/exiftool/ to extract this info and it's correct in all but 26 out of 569 JPG. Has anyone run into this and know why this might happen? The JPG themselves look fine (this lens has a lot of uncorrected pin cushion distortion which is corrected in-camera with a lens profile, so I think the camera knows which lens is being used).
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