Black magic URSA 4.6k Philip Bloom测评
I had a chance to shoot briefly with the URSA mini 4.6k in April thanks to Adam Roberts. I didn’t do a post out of it as I didn’t feel I had enough stuff. So I contacted Hireacamera.com who I saw had one in stock and asked if I could have it for the weekend to make this review, which they were kind enough to agree to!My experience with Blackmagic Cameras prior to this one has been frustrating. I have seen the potential but have always been put off by real frustrations. Generally operational issues, sometimes image issues, but mostly operational. I skipped the big URSA as I tried to pick it up and even before I fucked my back there was no chance! The micro cameras didn’t interest me. I felt with the pocket camera they were heading in a certain direction but they didn’t.It was also really hard to get a camera to review. I asked many times for an URSA Mini 4.6k and at BVE was promised one “within days”. That promise disappeared. Thankfully Adam Roberts, as mentioned above, who owned the first one in the country, came down for the day and we had a play with it. This made me really curious to know more about this camera. It was just a shame that Blackmagic were so reluctant to let reviewers get theirs hands on the camera.
Shooting with the URSA mini 4.6k on Richmond Green. Infrared photo with modified Sony A7RMy thoughts and findings are in the video below but to sum it up…this is easily the best camera they have made. It is very well priced and produces a wonderful image. It is far from perfect, and I go into the pros and cons in the video. Most of the cons are operational rather than image…mostly!Below are some frames captured by my small HD 702 monitor showing the different crop rates. The biggest sensor area being 4.6k, then 4K DCI is smaller. UHD 4K and HD use the same amount of the sensor as the 4.6K raw but scale it down. Windowed mode is for HD high frame rate over 60p up to 120fps. You cannot use the full sensor. You can get up to 60p in most recording modes from 4K to HD.
Dynamic range is 15 stops, and it has a lovely new log mode that is really easy to look nice in the grade with a simple S curve. The raw also has 3 variations of compression. Uncompressed, 3:1 and 4:1. The latter looks great and of course saves on space on the CFast 2 cards. ProRes is even better for space, and I recorded all my tests in 4:2:2 and it looked great and didn’t swallow up my cards. It really depends on what you are shooting. It will be rare to need raw the whole time if at all, but that depends on your work. I am thinking of my type of stuff. Oh…you get DaVinci Resolve 12.5 Studio free with the camera as per usual which is a terrific bonus.4k源文件太大 来个优酷链接瞅瞅http://player.youku.com/player.php/sid/XMTcwODM1NzMzMg==/v.swf
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出来好久了，我总觉得这人调色有问题，他能把所有的摄像机评测调成一种画质，看起来他评测的FS7，C300mark2，URSA这些摄像机画质都是一样的。还好他提供了原始文件下载，不过有一段曝光没搞准确，高光严重爆掉了，不知道是有意为之还是不小心。 搞测评的多数是研究参数的实质拍，艺术还是抽象点好 1dx上面的麦克风是什么型号？ 不知道RED小武器咋样... 菲利普现在干活好像用的FS7出掉了F55 gh1时代开始看他和EOSHD博主到现在。
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