androidlad
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Posts posted by androidlad
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26 minutes ago, liork said:
So output through HDMI could give 60p...
Not on Nikon Z as it caps at 30p.
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24 minutes ago, liork said:
The Atomos gut also say that Z can output 4K 60p.
No he didn't mean that. What he actually said was "We do up to 4Kp60, this camera does 30, HDMI would be capable of 60".
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8 minutes ago, kye said:
Based on the Z Cam E2 already having done it, I'm also pretty certain it can be done.. ?
That's not the limit in terms of what is state of the art either... both the RED MONSTRO 8K VV and the RED HELIUM 8K S35 do 8K60, and in theory they should be able to pump enough pixels for 4K240, so either they didn't think anyone wanted it, or there's some other limitation.
For high speed readout one has to sacrifice quality. The 4K 120p is 10bit ADC readout, which is very very low precision and high noise floor.
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Fuji rear LCD has higher contrast than Canon, but lower resolution.
If you punch in to check focus, does a slight resolution difference matter?
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3 minutes ago, mercer said:
Out of curiosity, then why does the C200 have 12bit and 10bit Raw?
Also, the 5D3 has 14bit, 12bit and 10bit?
They drop the bitdepth at the time of sensor readout.
Sony sensors can use 10/11/12/14bit readout for video, in the case of Nikon Z6/Z7 they only operate at 12bit for video.
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3 minutes ago, deezid said:
8K
So basically 36MP on a 4/3 sensor.
No thanks. My phone is already noisy enough, dynamic range suffers a lot as well.10MP on 4/3 is perfect (P4K, Terra 4K, GH5s, E2).
It's the same sensor as P4K, Terra 4K, GH5s, E2 but with Quad Bayer unlocked to output 8K.
Because the pixel size is 4 times smaller, Sony's dual Correlated Double Sampling actually achieves much better SNR due to reduced Full Well Capacity.
So the resulting 8K image has similar noise performance with all the above cameras.
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1 hour ago, DBounce said:
Hi @DaveAltizer I'm a bit confused about the Nikon Z with the Ninja V... I watched a video where they claimed the Nikon is outputting a 12 bit raw signal... not the 10 bit as expected. Could you please check with Atomos if this is true? Below is the video... check in his description.
If so it could be a pretty big deal.
Why is 10bit expected?
The sensor readout drive operates in 12bit in video mode. To output Bayer RAW it has to stay at the same readout bitdepth, because you can't downscale RAW data to a lower bitdepth RAW.
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1 minute ago, GiM_6x said:
Compressed it is OK, almost evrything is compressed these days.
Quality LOSS - aka you cannot recover the original info after de-compression - this is something else (a kind of jpeg!).
And it is up to you to accept an "quality loss RAW", which by itself is a contradiction.
Myself I accept a "regular" codec with quality loss. This is what I can aquire with my faboulous income (working in IT hardware, photo/video being a hobby).
I will NEVER accept a so-called RAW if you lose quality, call it anything but RAW and I may embrace it gladly.To me personally, it can be called RAW as long as it records Bayer data, I don't mind lossy compression, and the compression is usually visually lossless. Unless you're doing Avengers Infinity War level VFX, you don't need uncompressed/lossless RAW.
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3 minutes ago, mercer said:
They’ll probably do some dumbass move where ProRes Raw will only work if you bought the Atomos V with their Filmmaker’s Kit.
I think the next question is how will Canon respond in kind? We already know that a lot of their moves are direct responses to each other, so will Canon introduce RawLite into the EOS-R or an upcoming equivalent camera?
But IBIS and ProRes Raw in the Nikon/Atomos sounds kinda delicious to me. Are there cages available for the Z6 that will lock the cables?
https://www.smallrig.com/smallrig-cage-for-nikon-z6-nikon-z7-camera-2243.html
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Yep, it's the Sony 40MP M4/3 sensor, basically a variant of the GH5s/E2 sensor with its Quad Bayer array unlocked.
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4 hours ago, BTM_Pix said:
The numbers are exactly the same as A7R III. Nikon is literally using the same preset readout drive mode in that Sony sensor, IMX251.
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I wanna see your dance moves that tear apart the show floor.
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2 hours ago, Emanuel said:
Nice to know : ) Wish 4K60p might be a reality as well...
Let's not get too optimistic. Offering RAW output does not mean bypassing the underlying sensor readout drive limitations (sub-LVDS 12bit readout).
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Panasonic paid for Sony's premium SLVS-EC interface along with the sensors, we'll be able to see super-sampled 4K 60p from A7III sensor IMX410.
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Depends on your experience and skill level. A lot of people struggle with just operating the gimbal, let alone pulling focus while operating it.
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Excuse me but are you trolling? That A7R III sample (from Imaging Resource) was shot at ISO2500, f/16, 1/30s. Obviously severely underexposed and you complain about noise when pushing the shadow?
Typical landscape photography always use base ISO.
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SWIT CM-55C, it's the only low cost one with both 3D LUT and waveform.
I also heard that a firmware update is coming end of this month for more features.
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7 minutes ago, BasiliskFilm said:
Has anyone else had this experience of shooting NLog to a recorder having a hit on AF performance?
Log profiles basically underexpose the sensor and do a digital push off-chip, PDAF pixels do not get enough light to work reliably, and this is worsened by the already dimly lit scene.
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34 minutes ago, DBounce said:
Strangely enough, I have a MBSB, and almost never used it with my GH5 series cameras. It just made them too large and ruined the experience for me... YMMV. That said, I am certain there will be SB's for EOS R. Canon always... and I do mean always, holds back something. But like it or not, they nonetheless do make solid cameras.
Speedboosters for EOS R have already arrived:
Baveyes Hasselblad V-EOS R 0.7x
Baveyes MAMIYA645-EOS R 0.7x
Baveyes Pentax67-EOS R 0.7x
Baveyes Pentax645-EOS R 0.7x
However they are NOT designed for the 4K video crop though, they cover full frame sensor. A SB just for 4K video is extremely unlikely.
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1 hour ago, DanielVranic said:
is HLG 10 bit or no?
HLG can be either 10bit or 12bit per BT.2100 standard. X-T3 is BT.2100 compliant and can only record using HEVC codec when HLG mode is selected.
Since HLG is an open standard, Sony decided to deviate from the standard and used 8bit encoding, along with various HLG curves.
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6 minutes ago, chrisE said:
Thanks a lot, that's a start! But after a first look, that seems to be more about the color that curve that's being used to convert the raw data from the sensor to the 8bits in the final video file. Any more information?
Everything about HLG (and PQ) is in that whitepaper, it delineates both the OETF and EOTF that underpin HLG as a system.
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32 minutes ago, thebrothersthre3 said:
Interesting. It definitely works pretty well but its not magic, like I thought it might be. I wonder if the 1D being a DSLR contributes to it.
1DX II has about 12.7 million phase detection pixels while X-T3 has "only" 2.16 million.
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17 minutes ago, webrunner5 said:
Yeah but the A7 mk III is "only" 24mp. Look how the A7r mk III and the Nikon Z7 are. They are worse. The Z6 is better because it is only 24mp, probably the same sensor that is in the A7 mk III with some Nikon changes. But you only really need a little over a 8mp sensor to do 4K. Same with the Fuji X-T3. Small sensor size of 26mp..
The 36MP IMX435 has a unique sub-pixel structure with complementary carrier (similar to below) that obliterates A7S III/A7III in terms of dynamic range and sensitivity.
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1 hour ago, DanielVranic said:
I have done about a dozen separate HLG vs FLog tests here and HLG has not looked better in any of them.
Low light capture is significantly better with Flog, maybe a full stop more captured information. Flog has been cleaner and easier to work with by a huge factor. I will still aim that way unless an awesome HLG workflow comes out.
Please support your claims with empirical evidence - sample frames, exposure parameters etc.
Nikon Z6 + Ninja V vs Blackmagic Pocket 4k
In: Cameras
Posted
The resolution could very likely be higher than 4K. As the camera has to send 6K Bayer data to Ninja V, then it's subsampled to lower resolution.