aldolega
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Posts posted by aldolega
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Just got this camera and so far i am in love! did some filming of a police helicopter searching in the park close by here in Oslo, Norway. And the camera handles motion perfect! almost no rolling shutter! insanely good
Here is a 4K video i shot on Auto downscaled to full hd : https://vimeo.com/133804417
- There was not much time to grab a tripod or anything, so this pretty much all handheld on auto, and no grading.
Looks great! How're the servo-zoom speed(s)? The first RX10 apparently only had one, extremely slow, zoom speed. Does the mkII have fast/fast-ish speeds? And how's the AF? Does it track moving subjects well? Thanks.
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I hope they bring this sensor and lens over to the X70/AX100 form factor fairly soon. Although if the AF is fast and accurate enough, and the zoom control is fine enough (and there're zoom speeds above a glacial crawl), you could probably just get away with adding a loupe and the XLR unit to this camera.
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I dunno, they don't let just anyone post videos to YouTube, ya know. It's probably legit.
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He said in the article that 100/120p is unlimited.
I'm pretty intrigued by this camera now that Andrew has confirmed such minimal rolling shutter (it's dissappointing that the A7RII still has so much when it was advertised as having the same technology). I would like to see how it holds up with fast motion, at normal framerates and in high-speed modes. I find the intraframe mode on the GH4 to be pretty good.
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Do the Nikon-mount "Cine" versions of these lenses still focus backwards (i.e. how Nikon lenses focus)?
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I think the Micro might be a bit of a sleeper hit, at least once cages/rigging/cabling get figured out in the aftermarket, for combining the cam & Video Assist (or other monitor) into solid workable configurations. The omission of WiFi is a mistake though, I guarantee the Micro V2 will have it.
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It's the same difference as between (non-Canon) APS-C and APS-H. Which people paid thousands for before APS-H faded out. Or think of it this way: it's basically halfway between APS-C and FF.
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The Pocket and Micro don't need this, they already have a dedicated, more powerful (.58x) booster, which is optimized for their smaller sensor and thinner sensor stack.
This seems to basically be the BMCC booster, but (I'm assuming) with enough clearance for the GH4's mechanical shutter to be used, and the optics optimized for the thicker filter stack.
Which is great for me, as I'm currently using the BMCC booster and am a little tired of having to be in silent mode and e-shutter all the time, and being (theoretically) restricted to slower lenses due to the filter-stack difference.
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Rolling shutter- some increasingly fast pans would do the trick. Maybe just follow the methodology in this post (and submit the results when you have them):
Moire & Aliasing: Personally I am skeptical of the "VSM" system (aka sensor cropping and up/downscaling to HD/UHD) working without introducing artifacts. Please shoot some diagonals and some moire-inducing patterns (certain fabrics, bricks, etc) at varying distances/sizes, at a few of the various crops.
Motion rendition: the bitrates seem a bit low for fast action. I'd love to see this disproven.
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A sensor with an 8K res of 33.17MP in the center 16x9 crop would downscale cleanly to 4K in the same way that 4K downscales cleanly to 1080p... which doesn't seem to tax the GH4 or A7s all that much.
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All-I gives you more accurate motion, at the cost of larger files and a small hit to detail. I use it for shots with a ton of fast dynamic motion.
IPB gives you smaller files, and more detail, provided that not too many things in the frame are moving/changing too quickly.
Examples of when I would use each:
-fast pan/tilt/etc with lots of background detail moving through the frame- All-I.
-slower move or locked-off shot, with background detail moving slowly or not at all- IPB.
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The C100 doesn't output progressive?
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Yea I think Atomos has a bit of a target on their back in this space. The Video Assist looks to really spank everything from Atomos up to the Shogun. And in the Shogun space the new Video Devices recorders and the new Oddyssey are arguably better choices.
The screen is probably an off-the-shelf smartphone panel, so I would think IPS. Do they make TN phones at this res?
If we get 1080p60/10-bit/4:2:2 to SD cards and a 1080p screen for $500, what would a big brother to this look like (hopefully only bigger in capabilities, not size)? 4K at 60p to cFast or SSD at... $1200? $1500?
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The Micros use LP-E6's.
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It has buttons on the front right face/corner. And I bet there'll be a way to get a touchscreen going with it. HDMI has the ability to transfer info/commands, my BluRay headunit can control my TV for instance (same brand so made to do this, but the only connection is HDMI). Does the Video Assist have a touchscreen? It's most likely a smartphone panel so I would think so.
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FF = full frame. Most people use photo full-frame (5D, 1DX, D4, A7, etc... or 35mm photo film) as the yardstick to convert everything to before comparing. A bit convoluted, but it makes sense to me as FF has always been the same (24x36mm), whereas "Super35" has varied quite a bit over the years.
With Speedboosters it's much easier to think of them as modifying the camera, not the lens. With the BMPCC booster, the Pocket's sensor basically becomes slightly-smaller-than-APS-C-size (.58 x 3 = 1.74. APS-C is ~1.5-1.6X), and ISO 200 will now expose like ISO 640 did before the booster.
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I have the BMCC (.64x) booster for my GH4. The back of the booster does indeed press against the shutter housing. If you use the mechanical shutter it will make a very ugly "oh god, I just ruined my camera"-type noise, from the housing being flexed into the path of the shutter. Turn on e-shutter and silent mode and you won't have to worry about this happening, but you do lose sound on clip playback, and any beeps you may have enabled.
The main thing to consider is that the BlackMagic cameras have a much thinner filter stack on top of their sensors than normal m4/3 cameras. The BMCC and BMPCC boosters are designed for this, and this makes them perform poorly on normal m4/3 cameras when used with lenses set to large apertures (~f2 or faster). This won't be an issue for me as I'll just be using slower (f2.8 or slower) wide lenses with the BMCC booster; my fast glass is Minolta MD/MC mount and I'll be getting an MD/MC booster eventually for that.
I believe I read somewhere that the BMPCC booster will either vignette or go super soft at the edges when you use the GH4's 1080 modes (full sensor width). This alone took it out of consideration for me, as I use 1080p more than the 4K mode.
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I'm interested to see how the video quality of pixel-for-pixel sampling compares to full sensor downsampling in terms of moire, aliasing, color, DR, and rolling shutter. We've never seen the same sensor utilized both ways like this--it might provide some cool insights into the pros and cons of each method.
The GH4 does exactly this- pixel-to-pixel for 4K (cropped), full sensor width downsampled for 1080p.
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Yikes, well that rules them out I guess. Tried the camera out in the store and loved the layout and EVF, but cannot get past the image quality of M43 and it looks like the haven't improved video either :/
I was disappointed too when first videos appears online. Though I really enjoyed my E-M5 but now i need to move on, i'm using a a7s and pushing the buy button for the NX1, i thinking that i gonna pass on M4/3 from now on.
You're both taking Olympus' poor video performance as proof of the entire m4/3 system sucking. Ever tried the GH4? BlackMagic Pocket?
- Tim Fraser, tosvus and Don Kotlos
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You'd still need a rail system, if you have accessories that require a rail mount (follow focus, mattebox, v-mount batteries, etc).
The audio being built in is nice of course, but it hardly makes this an ENG camera. You'd need a fast, powered, parfocal zoom lens for that. A m4/3 equivalent to that Sony 28-135 would be nice. With the variable crop in s16 mode, you could maybe just use an actual B4 ENG lens.
Personally I really like the idea of the oversized sensor, and the variable crop, but I'm skeptical of it performing without moire/aliasing.
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I see it as an opportunity to sell off what I don't want on eBay or Craigslist, and get an $800 discount on what's left over.
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Also- haven't seen any Speedboosters that power/communicate with Nikkors.
And I would go with the D750 over the D810 for video.
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AF- Nikon's DSLR's won't cut it. Mirrorless will be closer but still not as good as a true camcorder. I doubt they'd handle such fast-moving subjects well enough for you. Canon's Dual-Pixel AF is the most serviceable large-sensor AF, but that wouldn't work with your Nikkors obviously.
Zooming- not really realistic. It's very difficult to get a smooth, not-jerky zoom by hand on a stills lens, and few stills lenses are parfocal (focus point doesn't change wity focal length), so your subject would drift out of focus as you zoom. You would want a powered/servo zoom. Sony makes a couple for their E-mount (28-135 f4 and 18-200 f3.5-?). You can finagle old B4 broadcast lenses onto m4/3 with an adapter and a battery to power the zoom motor. Optical quality isn't stellar unless you drop new-car money on a newer HD lens.
IS- usually works well enough at shortish focal lengths (wide through portrait). For tele length, depends. I have a buddy who can hand-hold his 7D/70-200 f4 IS and get very smooth shots with no other rigging. When I try that it looks like an earthquake, so I stay on sticks or at least a monopod at tele lengths.
Sony A7S M2 - what features and specs are likely
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