• Panasonic Cameras

  Sigma 18-35/ Viltrox Adapter/ GH5 Parafocal Issue

  Posted by Karl Miller on March 17, 2021 at 4:30 am

  Using the non-speed-booster Viltrox adapter with a Sigma 18-35 on a GH5; the lens works great. But its not acting like a parafocal. That is, if I zoom in and focus, and then zoom out, the focus point changes… Shouldn’t I be getting a constant focal point across the entire zoom range (assumming that I focus while zoomed all the way in)?

  thanks-

  Karl Miller replied 3 years, 9 months ago 1 Member · 0 Replies
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