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Found 2 results

  1. I recently purchased an a7R II along with a Sony FE 24-70 f/2.8 GM lens (SEL2470GM). I bought the lens on eBay. It was listed as manufacturer refurbished and does appear to be genuine and in excellent condition. Both the camera and lens are working great for the most part. However, I was surprised to discover that the lens is not capable of phase detection autofocus. I have updated the camera firmware to ver 3.30. I cannot find any firmware updates for the lens, which is running ver 01. When using AF-C, the lens hunts for focus continuously with rapid, jittery movements. It takes a long time to get a lock even if the aperture is wide open and the subject is brightly lit and not moving. Meanwhile, AF-S works beautifully. In the settings, Phase Detect. Area and AF System are grayed out along with a message that says “Invalid with this lens.” Along with plenty of Googling, I have scoured Sony's website and B&H for some mention of phase detection in their descriptions of this or any Sony FE lens. It does not seem to be a spec that they ever list. Yet, I believe at least some lenses are compatible with PD. I found one post on this site that indicated that the Sony FE 50mm f/1.8 (SEL50F18F) works with PD. And I saw a post about a lower-end zoom that supposedly works. So I have a few questions: As in the title: Does the Sony FE 24-70 f/2.8 GM support phase detection AF on the a7R II? I would be surprised that a native lens from their premium GM line would not, and some posts have indicated that all Sony native lenses should be PD capable. I know that A-mount lenses can even use PD with an adaptor. If some Sony native E-mount lenses are not compatible with phase detection, which ones are? I can't find a list anywhere, and like I said, there is never any mention of it in the specs. If you have a FE 24-70 f/2.8 GM, what firmware version does it have? Thanks!
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