AggressorBLUE 1 Posted February 4, 2016 (edited) Both are fast. The Olympus focuses on my GH4 really, really fast, even in low light. I have not compared them directly, but my subjective opinion is that the Olympus is faster. Maybe it has something to do with giving the contrast detect AF system more light to work with. So, rookie question then: Do lens auto-focus at the selected stop, or do they focus at the lowest possible stop for the lens, and then choke down to the selected stop when commanded to capture the photo? That said, at the current street price of $800USD (Amazon), I'd say from the pics shown this looks to be well worth the premium over the Panasonic. Edited February 4, 2016 by AggressorBLUE Share this post Link to post Share on other sites
Cerianthus 55 Posted February 6, 2016 Most lenses focus on their widest opening and stop down for the picture. the depth of field preview button on cameras does that without taking a picture Share this post Link to post Share on other sites
Jak Crow 2 Posted March 1, 2016 I'm considering both the Oly 8mm fisheye and the Oly 7-14mm. I'm considering one or both. If I went with just one, which one would people recommend over the other? Share this post Link to post Share on other sites
Rugani 8 Posted March 1, 2016 I have both lenses. The panasonic is more then a great lens. The Olympus is the top for those who want a few percent more and have no Problem to pay more and with the weight. It is a Little bit sharper and in extreme situations the camera focuses a Little bit easier. Armin Share this post Link to post Share on other sites
Jak Crow 2 Posted March 1, 2016 I'm asking about both Oly lenses, not Panasonic or Oly. Share this post Link to post Share on other sites
Draq 134 Posted March 5, 2016 I'm considering both the Oly 8mm fisheye and the Oly 7-14mm. I'm considering one or both. If I went with just one, which one would people recommend over the other? Hard to compare. One is a very wide rectilinear zoom and the other a fisheye with the characteristics of a fisheye lens (curved lines, etc). I think you would find a lot of people use both of those types of lenses and if you are trying to choose which to get, or which to get first, then you need to consider what you are going to shoot, whether size of the dome important to you for travel, if you like the look of a fisheye, if you want to also use the lens on land, and so on. I think if you could describe what you want to do and what other concerns you might have about size, cost, etc., you will get some helpful responses. Share this post Link to post Share on other sites