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Attila Bakos

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Posts posted by Attila Bakos

  1. 2 hours ago, sanveer said:

    Is there some official literature or something else that states this. 

    No nothing official I'm afraid, but here's a research paper you can check:

    https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7254155

    And a user test you might find interesting: http://wp.xin.at/archives/3465

    Obviously a lot depends on encoding parameters, but if all done properly, the differences seem to fade away way earlier than 200Mbps, so I think you won't find any difference even if you try to break the footage in post.

  2. 24 minutes ago, Anaconda_ said:

    I've tried looking but am I right in thinking the 4k60p is 400mbps in h265? If so, isn't that equivalent to 800mbps h264? That's quite astonishing.

    The only downside really is the 4:2:0 in camera.

    It's already 1.5x crop, is there extra crop for video?

    I also see that it's rated at 30 minute record times. is that based on 30fps recording? If so, does that mean 60fps is limited to 15 minutes?

    It's 200Mbps (and Long-GOP) in 4K60. See here: https://***URL not allowed***/wp-content/uploads/2018/09/pic_05.jpg

    And it's not equivalent to 400Mbps H.264 at these high bitrates. The advantage of HEVC only shows at low bitrates.

    Dpreview says there is an extra 1.18x crop applied in 4K60, but not in 4K30.

  3. 4 minutes ago, Anaconda_ said:

    The sun will always be blown, that's hardly a choice. The choice was to try to save the detail in the clouds.

    Having not seen the original files and making this up as I go along. I would have just lifted the shadows and left the sky totally blown out. I think it would have looked a lot nicer and still give the model some detail against the strong light.

    Something wrong with your quote, that wasn't me :) But I agree completely.

  4. 1 minute ago, Bioskop.Inc said:

    Again, use the P4K with vintage lenses & it shines!

    Low light was amazing & I wouldn't worry too much about the sun - the choice was made to see her & blow the sun. You've gotta remember it's the brightest thing you'll ever film & there will always have to be a pay off. There's also nothing wrong with crushing blacks or blowing highlights - it's a modern malady that tries to enforce that you can't do this.

    Blowing the sun is not the problem, he tried to recover too much highlight detail, which creates a distracting, harsh edge around the blown-out parts.

  5. 1 minute ago, mercer said:

    I remember when I had the NX500, it was 70mbps h.265 and it was compared to 120mbps, or so, of h.264. So out of curiosity, if 400Mbps in h.265 wasn’t not compressed, would it be at ProRes HQ levels?

    While it's true that H.265 can have the same quality as H.264 with approx. 50% of the bitrate, it's only at low bitrates, like streaming. As far as I remember at such high bitrates like 400Mbps the difference would be almost non existent, but I can't show you any test at the moment that proves this, maybe someone else can.

  6. 1 minute ago, Márcio Kabke Pinheiro said:

    400mbps in 4k60 in All-I and Long GOP in H.265 (could be a mistake, because 400mbps Long GOP in H.265 is VERY high),  200bps or 100 mbps in 4k30 and below (10 bit 4:2:0 in H.265 and 8 bit 4:2:0 in  H.264). DPreview have a full table on https://***URL removed***/reviews/fujifilm-x-t3-first-impressions-review/2

    If this camera had IBIS, would be shut up and take my money. Waiting for the real world reviews (as other cameras), but looks like a shot out of the park by Fuji. Amazing.
     

    According to the press release 4K60 is maxed at 200Mbps.

    This is from Slashcam, it explains everything pretty well:

    fujifilm_X-T3_recording_modes-14581_PIC3

  7. 11 minutes ago, mercer said:

    According to B&H, it has 2K up to 60p. That’s a cool feature. Any word on the bitrates?

    [DCI 4K (4096 x 2160) ]  59.94p/50p/29.97p/25p/24p/23.98p 400Mbps/200Mbps/100Mbps 59.94p/50p: up to approx. 20min. 29.97p/25p/24p/23.98p: up to approx. 30min
    [4K (3840 x 2160) ]  59.94p/50p/29.97p/25p/24p/23.98p 400Mbps/200Mbps/100Mbps 59.94p/50p: up to approx. 20min. 29.97p/25p/24p/23.98p: up to approx. 30min
    [Full HD (2048 x 1080) ]  59.94p/50p/29.97p/25p/24p/23.98p 200Mbps/100Mbps/50Mbps up to approx. 30min.
    [Full HD (1920 x 1080) ]  59.94p/50p/29.97p/25p/24p/23.98p 200Mbps/100Mbps/50Mbps up to approx. 30min.
    [Full HD (1920 x 1080) High speed rec.] 120p / 100p 200Mbps(recording) up to approx. 6min.

    Recording movies in 400Mbps can be done with DCI4K/4K 29.97p/25p/24p/23.98p.

    DCI4K 59.94p/50p is not available when H.264 is selected.

  8. 12 hours ago, Luke Mason said:

    I used QCTools to check 10bit quantisation, I can confirm it's true 10bit colour.

    Thanks for mentioning QCTools, I didn't know about it and it seems to be an awesome tool for analyzing video.

  9. 9 minutes ago, Mokara said:

    They should be, unless you are talking about RAW feed. Regular HDMI video would simple be an uncompressed form of what is normally recorded in camera.

    With RAW you would need to apply those corrections yourself since all you are getting is data directly off the sensor without any processing applied to it.

    No not RAW, I wanted to know if the Z6's 10bit 4:2:2 N-LOG over HDMI has these corrections.

  10. 7 hours ago, Walter H said:

    @Attila Bakos Hello! I just made a donation to you at colorizer.net and thanks for creating this LUTS. Is there any consideration still to make a flat Eterna LUT? I just find the backed in contrast of Fuji's Eterna LUT too severe as a starting point but I do think the color is beautiful. 

    Curious. Still shooting with my X-T2.

    Thanks a lot! I don't have a Fuji body at the moment, but I have some savings for the X-T3. If it turns out to be good then I'll make new LUTs. Until then visit my experimental project: http://colorizer.net/index.php?op=lut_contrast
    With this tool you can remove the contrast curve of a 3D LUT. With the method I use the curve of the Eterna LUT can't be removed without distortion of the RGB transformation, but you won't necessarily see it in real-life footage. Maybe try 50% strength or less.

  11. 6 minutes ago, Kisaha said:

    Great test video by the way, excellent job. Is it me, or the skin color of the Fuji is way off? I do not believe I am saying that, but color seems better on the Sony, skin tones especially. 

    Does the A7iii have the same color science as the A7Riii? Are they much better than the A7 mk II series cameras? I will be working with Sony a lot this summer.

    Ibis, RS and codec goes to Fuji though.

    Make sure you check the article as well, it has tons of comparison images and information.

  12. 3 hours ago, Inazuma said:

    Just received mine yesterday. I have the Samyang 35mm f2.8. Sony FE 50mm f1.8 and Tamron 28-75mm f2.8 have been ordered too. Let me know if you guys have any questions

    Do you still have the X-T2? I'd love to see a skintone comparison.

  13. 30 minutes ago, Walter H said:

    Curious if the slow-mo aliasing issues of the X-H1 show up in the X-T2 post-firmware update - in the 60p as well.

    Unfortunately 100/120p has the same aliasing issues as the X-H1. 50/60p looks fine, I'm not seeing a change there.

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