CaptainHook Posted October 30, 2018 Share Posted October 30, 2018 32 minutes ago, Shirozina said: Messing around with my external monitor and looking at the scopes I can see that the zebras are linked to the red channel so all the more reason to make sure you WB correctly to avoid clipped highlights if you are using the zebras to ETTR. The GH5 along with many other cameras have the zebras linked to the green channel. Maybe BM want to avoid the user clipping skin tones above all else? Never understood why manufacturers need to just link zebras to a single channel and not have it work when any channel clips???? Zebras are currently based on Luma or the Y channel of YCbCr (as it has been since the first BMCC). Quote Link to comment Share on other sites More sharing options...
Shirozina Posted October 30, 2018 Share Posted October 30, 2018 2 minutes ago, CaptainHook said: Zebras are currently based on Luma or the Y channel of YUV (as it has been since the first BMCC). I can't view Luma on a a display and most NLE's work in an RGB working space. Also what about RAW capture which is not YUV? YUV is just the codec colour recording system for ProRes etc. Quote Link to comment Share on other sites More sharing options...
CaptainHook Posted October 30, 2018 Share Posted October 30, 2018 1 minute ago, Shirozina said: I can't view Luma on a a display and most NLE's work in an RGB working space. Also what about RAW capture which is not YUV? YUV is just the codec colour recording system for ProRes etc. Historically (not that we've made cameras THAT long) we've always converted internally to YUV/YCbCr no matter the codec for SDI output etc. It's then convenient and easier on resources to do image statistics on just luma for zebras/false colour and that has not changed. RGB would be more ideal, yes. Personally I always set zebras to 95% for some slight headroom (even before I worked for the company and learnt how it worked) and after i joined and we added false colour, the "red" (highlight clipping) on false colour is actually at 95% for the same reason. seanzzxx, Jonesy Jones and Katrikura 2 1 Quote Link to comment Share on other sites More sharing options...
Anaconda_ Posted October 30, 2018 Share Posted October 30, 2018 Thanks @CaptainHook - the lut is only for in camera previews - I’ll grade from scratch each time. Does anyone know if there's a way -without cutting - to take off the flaps on the side? I remember Grant Petty took one off at NAB, but that looked like an accident. Also, Bloom has a loupe on his P4K. Quote Link to comment Share on other sites More sharing options...
Shirozina Posted October 30, 2018 Share Posted October 30, 2018 1 minute ago, CaptainHook said: Historically (not that we've made cameras THAT long) we've always converted internally to YUV/YCbCr no matter the codec for SDI output etc. It's then convenient and easier on resources to do image statistics on just luma for zebras/false colour and that has not changed. RGB would be more ideal, yes. Personally I always set zebras to 95% for some slight headroom (even before I worked for the company and learnt how it worked) and after i joined and we added false colour, the "red" (highlight clipping) on false colour is actually at 95% for the same reason. Thanks for that clarification and I'll set my Zebras accordingly. Quote Link to comment Share on other sites More sharing options...
Emanuel Posted October 30, 2018 Share Posted October 30, 2018 9 hours ago, seanzzxx said: For people getting their hopes up, this is slightly misleading. My experience has been the following: The 18-35 will vignette even on a .71x ('ultra') speedbooster until about 20mm in DCI 4K (only barely and not worth mentioning in Ultra HD). It's sort of usable but the vignette is definitely there across the whole left and right side and it's relatively severe. It will basically be unusable on full frame on my A7RII until 35mm, at which point you might as well use the lighter, better, brighter 35mm 1.4 ART. 5 hours ago, Shirozina said: Not seen any problem with my Viltrox .71 and yes it will be unusable on full frame as it's an APS-C lens. 5 hours ago, seanzzxx said: That's weird, because I definitely am. Are you shooting at the full sensor width? I'll get some screen caps later today Also my comment about full frame was in reference to Emanuel saying the lens is usable at full frame except for the wide end while my experience is that that's not really true. 4 hours ago, Shirozina said: Just checked now (without the 1:2.40 frame guides) and yes there is a very slight corner shading wide open at the wide end but I wouldn't call it a problem and nothing that can't be fixed in the grade. Maybe on the Metabones it's different though? These are tests conducted on Sigma with a XL version where is (in the comments section) explicitly written there's no vignetting from about 22-24mm on going along his GH5 for that setup, obviously: And here is one where the same user tests tap-to-focus feature on the same camera coupled to the same focal reducer to those who think it might not be possible to go with AF on P4K (touchscreen focus is an autofocus feature BTW, whether you use it or not ; ) On the other hand, here are these samples which follow your feeling @seanzzxx -- very welcome to the discussion BTW (part II): source: https://***URL removed***/forums/post/58134184 Another one on a7R: source: https://***URL removed***/forums/post/57637470 Here's a 3rd one which proves in the real world the results may vary from that 23-25mm (to stand Daniel's 22-24mm statement) mark though (on a 5DII now) -- count on some distortion anyways: http://thurtlepower.com/dorsetweddingphotographerblog/sigma-18-35mm-dc-hsm-mini-review-and-first-impressions/ Quote Link to comment Share on other sites More sharing options...
JordanWright Posted October 30, 2018 Share Posted October 30, 2018 https://tilta.com/2018/10/29/first-look-at-the-camera-cage-for-bmpcc-4k/ Tilta have a lot of accessories coming out Quote Link to comment Share on other sites More sharing options...
Álex Montoya Posted October 30, 2018 Share Posted October 30, 2018 It's a really cool line of accessories and prices seem reasonable. Quote Link to comment Share on other sites More sharing options...
Turboguard Posted October 30, 2018 Share Posted October 30, 2018 10 minutes ago, JordanWright said: https://tilta.com/2018/10/29/first-look-at-the-camera-cage-for-bmpcc-4k/ Tilta have a lot of accessories coming out So cheap! I wonder what the build quality will be like. Quote Link to comment Share on other sites More sharing options...
Álex Montoya Posted October 30, 2018 Share Posted October 30, 2018 The big side handle with power and ssd slot is really something. Quote Link to comment Share on other sites More sharing options...
Anaconda_ Posted October 30, 2018 Share Posted October 30, 2018 It's a shame you lose audio inputs with the side handle though, you can see in one of the images it's blocking the 3.5mm jack, so XLR must be the same. That V-mount baseplate looks great though. Quote Link to comment Share on other sites More sharing options...
Kisaha Posted October 30, 2018 Share Posted October 30, 2018 1 hour ago, Anaconda_ said: It's a shame you lose audio inputs with the side handle though, you can see in one of the images it's blocking the 3.5mm jack, so XLR must be the same. That V-mount baseplate looks great though. Very interesting and holistic approach, but if they block the audio inputs, then they negate one very important advantage (for me). Quote Link to comment Share on other sites More sharing options...
omega1978 Posted October 30, 2018 Share Posted October 30, 2018 1 hour ago, Kisaha said: Very interesting and holistic approach, but if they block the audio inputs, then they negate one very important advantage (for me). i think you can slide out the grip to access the xlr and 3.5 Quote Link to comment Share on other sites More sharing options...
Anaconda_ Posted October 30, 2018 Share Posted October 30, 2018 To me that looks like how you put the grip on and take it off. I don’t think you can have it half way like that. The screw at the bottom of the grip has to screw into the cage somewhere. By doing that you block the ports. Quote Link to comment Share on other sites More sharing options...
Kisaha Posted October 30, 2018 Share Posted October 30, 2018 34 minutes ago, omega1978 said: i think you can slide out the grip to access the xlr and 3.5 It is impressive that they have all these options. Maybe the camera widens significantly with this solution though, and even if you put an angled connection, that makes the grip to widen even more. I noticed there is a basic plate for an F battery, and an SSD attachment on the monitor hood, with the half cage it could be enough to have a very workable and minimalistic solution. Those Tilta options seem like the best right now, and very well thought, maybe they pre-ordered first! There is a lot of support on this camera. Certainly more than the EZ one! Quote Link to comment Share on other sites More sharing options...
omega1978 Posted October 30, 2018 Share Posted October 30, 2018 15 minutes ago, Anaconda_ said: To me that looks like how you put the grip on and take it off. I don’t think you can have it half way like that. The screw at the bottom of the grip has to screw into the cage somewhere. By doing that you block the ports. i think this 2 withe blocks jam the grip in the tail and allow you to fix the grip to access the plugs Quote Link to comment Share on other sites More sharing options...
Kisaha Posted October 30, 2018 Share Posted October 30, 2018 Ok, I shop half cage, partial sunhood, SSD holder, custom USB C cable and that simple F plate. Now I need a camera to fit all these! What do you think will be the waiting period if someone pre-orders now?! Quote Link to comment Share on other sites More sharing options...
Alex Uzan Posted October 30, 2018 Share Posted October 30, 2018 So Andrew should get its Pocket4K today or tomorrow. I can't wait to see what he has to say this new camera, since I can't stand anymore almost all those YT reviewers which (deliberatly ?) forget to mention flaws or good things. Quote Link to comment Share on other sites More sharing options...
webrunner5 Posted October 30, 2018 Share Posted October 30, 2018 1 hour ago, omega1978 said: i think this 2 withe blocks jam the grip in the tail and allow you to fix the grip to access the plugs It looks to me that there is a knurled Knob that you have to screw in to lock the handle. Doesn't look adjustable to me. Quote Link to comment Share on other sites More sharing options...
Snuff Posted October 30, 2018 Share Posted October 30, 2018 Camera: Blackmagic Design Pocket Cinema Camera 4K Lenses: Contax Zeiss MMJ 18/4, 28/2.8, 35/2.8, 50/1.4, 85/1.4, 135/2.8 CinemaDNG RAW 3:1, ISO 1250~3200 Arri Skypanel S30-C x 3 Metabones Speedbooster XL 0.64x DJI Ronin-S salim 1 Quote Link to comment Share on other sites More sharing options...
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