Viet Bach Bui
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Posts posted by Viet Bach Bui
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12 hours ago, Jimmy said:
I'm trying to say that the above shot is purposfluly made difficult in terms of colour and skintone, yet still shines.
You are not blown away by the colour science here? Skintones look perfect to me.
I agree that the skintone in the shot above looks fantastic. However it was not the part that was made difficult with the heavy magenta cast. This one is lit by sunlight and the scene is very simple for grading.
And guys, let's judge this camera by its own footages, not its 3-times more expensive sibling, even if they share some of the hardware.
As for footages that blow me away, well I don't have time to search for them again now, but I have seen clips from C100/C300/5D3 Raw/BMCC and more recently the BM Mini 4.6k that look just as good (see screenshots in this topic over at bmcuser http://www.bmcuser.com/showthread.php?15520-Brief-thoughts-and-a-bit-of-footage-from-the-URSA-Mini-4-6K/page213)
It's not that the footages from the LT don't look good, they do, it's just that some people claimed it makes the Alexa look like video and trashes the F55 so naturally I expect to see something spectacular.
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Yes, but I don't get what you're trying to say.
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For all the hype around this camera's color science, I'm not blown away by any of the footages so far...
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Raven Footage
In: Cameras
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No, not the full width but just a little less according to the dpreview chart. It's probably the same 16mp sensor from the GX7 which is 4592 x 3448 pixels.
The 16:9 crop is 4480 x 2520 which gives a sensor area of 16.87mm x 9.5mm which is a 2.13x crop.
The 3:2 crop is 4272 x 2856 which gives a sensor area of 16.09mm x 10.77mm which is a 2.23x crop.
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This video from a while back has the internal vs Pix240 comparison:
Cine 4: seems to be the same.
S-Log 2: there is a difference, but nothing significant in my opinion. I actually think the Pix240 footages would be easier to grade.
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Well it turns out to be a FT sensor with a ~2.2x crop (at 3:2 ratio), so in theory it lens only need to be around 22% bigger than the ones in the RX100m3, which is not too hard to imagine considering the 55mm depth of the LX100 (vs 41mm of the RX100m3).
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Would comments left in the blog be sync'ed with the associated forum topic and, conversely, would posts made in the forum topic show up in the blog? If the answer to both is yes then I see no reason why having comments in blogs would hurt the forum traffic.
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I would love to have dark text over light background as an option. It is just easier on the eyes for me.
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I really dislike this method of segmentation. It's like telling a wedding videographer that you can't afford their usual rates and they say fine, I'll give you a lower rate but I'll blur the footages and resize them to 720p because that's what you get for the price you're paying.
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Nope he said it's futile to try to fix Sony colors (I wonder why he's still in this thread, though, I don't haunt topics of cameras I don't like)
And I agree with you that most of the footages don't have that pop. But with such a flat footage it's normal to see 90% of the videos online not being graded properly. The BMPCC when it first came out was also a nightmare in post. The internet was also full of weird, desaturated BMPCC clips just like it is now with the A7S. Just give it some more time to see where it goes. The last two videos in this thread were close to perfection, though. -
So the sky being blue is a bad thing now? Of all the things to nitpick about...
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Best looking skin tone from Roman's clip by far, even though I think it comes at the cost of not having enough green in the trees/grass.
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Hey ladies, just a friendly reminder about the fact that your cat fights are only adding topic litter.
Thank you, Mr. Pot, for hanging with us kettles.
I don't think the A7S has a color problem out of Slog2. Cine4 seems to be the most balanced between DR and color saturation, and that's what I'm going to use most of the time unless I want to preserve more highlight details.
But even with Slog2 though, I think the colors can be brought back nicely using LUTs. It's just a matter of time until people figure out the right LUTs to use in different situations. I have seen some people do it successfully and the results are really nice and closer to what can be achieved with RAW videos.
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Man, how were those considered personal attacks :(? They are just attacks on the arguments, not on personal characters. In a debate, it is normal to call out others' fallacies and weak reasoning.
Anyway, I'm sorry I offended you (if you ever see this). -
Here's a few clips for you Matt, hope you like them more than the previous ones:
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That's because you are comparing it to the GH4, which is also a bit yellowish, although not as much. Compare it to a Nikon, and look at her neck. Also look at the girl to the left, too. If you look at the paint mixing bowl, the brush has almost no color with the a7S. At the paint mixing platter, the yellow next to the red looks the same as the yellow next to the teal for the a7S. For other cameras, they are not the same yellow. The one next to the teal is a darker shade with a bit more green. Also the green fur over the Asian girl's head has a bluish cast. It should be green.
Michael
The GH4 was just the default camera when I opened the page. I'm just looking at the A7S image by itself and there I see no yellowish tint. And it seems you're grasping at straws here. First you emphasized on the A7S skin tones, and when that didn't work out you had to cherry pick from the scene. But let's see if your new examples hold up:
I also don't see the D610 doing any better in skin tone here. And what of the neck?
The brush has almost no color? I disagree, the colors are just less saturated, but they are there, and very realistic looking too.
As for the yellow paint tubes, the top one has a noticable darker shade of yellow, just not as pronounced as the D610. Btw, the blue tube looks better on the A7S to my eyes :)
You are talking about this green fur right? I see no blue cast in it.
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Come on dude, I thought you wanted to stop arguing? You're telling me what I meant by a comment!? I'm the one who wrote it!! I even put a bloody smiley face next to it in the hope that you got that it was intended in a friendly way! You are reading everything I say as confrontational ... there isn't anything I can do about that. It seems like the only thing that will stop you from taking issue with my comments about the A7S is if I say that I am wrong, I do actually like the colours the A7S gives. But that would be a lie ...
By the way, I've spent about 15 years studying painting (I have a doctorate in fine art in fact). Please let's not get into an argument about what different colours are. All blues have green in them - that's how the colour spectrum works - just as all greens have blue in them. The name cyan actually means "deep blue" in Greek. But you are right that there are different hues of cyan. My attitude to the A7S cyan is, once again, a personal one. I feel more comfortable with the GH4's cyan. What I said is there is a difference. You haven't acknowledged that.
As for your comment about profiles, flatness and saturation, I've already addressed that in the comment of mine you quoted. Please read it again.
I think you should take all this bantering a little less seriously. They're just electronic gadgets :) Having said that...
The only way for me to stop taking issue with your comments is for you to make comments without any issue I can take with. You showed a very short clip and implied that the GH4 has better colors (which it may very well does) based on shaky reasonings. If you had just flat out said that you prefered the GH4 colors then you wouldn't have heard from me.
And what did you address about the profiles, flatness and saturation in that post besides saying that it could be the grades or profiles and then negating it by saying it's a consistent problem?
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Dpreview has a comparison tool for comparing camera output for raw, JPG, and video. The a7S colors are off for JPG's and video, especially the skin tones, which have a yellowish cast.
Wait, what? I'm not seeing any yellow cast in the A7S video stills.
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The "no comment" was just me saying I didn't want to voice my opinion, in the hope of avoiding more argument. I am not and have never made any comment about resolution. I'm interested in discussing the colours of the A7S.
To me the difference in colour is night and day. You'd have to be "silly" not to see it (to use hmcindie's earlier description of me because of my attitude to the A7S' colours :P ). Look at the cyan spot on the Kodak Grey Scale card. It's a greenish turquoise, whereas from the GH4 it's as I'd expect - a blue hue. The GH4 colours are also far more "punchy" and full. Look at the clapperboard colours - the colour separation in the GH4 clip is very obvious, whereas in the A7S footage they do not "ping" against each other. Of course this could be put down to profile or grading differences, but as I've said repeatedly this has been consistent in every A7s clip I've seen. I'm no expert - I'm happy to be proved wrong, but don't tell me you can't see any real difference - that would make you silly. :P
Nope, your "no comment" was actually more in the vein of "I rest my case." If you got an opinion just say it, don't beat around the bush.
I also noticed the GH4 part was a little more saturated, but what of it? Flatter profiles usually carry more dynamic ranges, which weren't shown in the preview clip. Now if the GH4 had both punchy colors and the same or more DR as the A7S I would be very impressed.
And there's nothing wrong with the cyan patch in the A7S clip. It's just less saturated. Just google "cyan" and you can see all shades of it, not just "blue." In fact, cyan is a mix of blue and green, so there's nothing abnormal about the greenish color in the A7S patch. As for better color separation, well, the A7S profile is flatter, so that's to be expected from out of camera footages.
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No comment ;)
Is there something so obvious in this short clip that you felt you did not need to comment? All I can see is that they are about as sharp as each other.
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I don't know how many times I have to say this. I don't like the colours I'm seeing from the A7S. I haven't seen ANY footage from the camera that hasn't elicited this reaction from me. There isn't anything you can say to that!
You can't "call me out" on preferring the C100 colours to the the A7S. It's my choice. I'm not talking tech or specs or side-by-sides, I'm talking about my own personal, subjective, aesthetic preference. I'm 100% open to seeing a grade I do really like, but so far that hasn't happened. It's a huge disappointment to me because otherwise this is my perfect camera.
Let's stop arguing. I am linking some of the videos which I think have great colors (ie not lifeless) in case you are not following the Vimeo channel. If you have seen them then nevermind, otherwise tell me what you think.
Edit: couldn't embed vimeo for some reason
_http://vimeo.com/groups/243026/videos/102902760
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"We" aren't labelling anything anything. "We" are voicing our own opinions. I am voicing mine and you are voicing yours.
Or perhaps I should just concede that those of you getting overly defensive about my dislike for the A7S' colour science are right and I'm wrong. My eyes simply aren't working properly. I do actually like what I'm seeing. Thanks for putting me right ...
Nah, not overly defensive, and if I was, it would be of the clip not the camera. I just find it a bit unfair to judge a whole clip by a few parts that are not up to our standards. I also think 80% of A7S videos out there have weird colors throughout, but for this particular clip I think the author did a great job bar a few scenes.
My reaction was unfortunately based on past exchange with Bui Bach Viet about the same issue, and with another member on a different thread (comparing the A7S to the D810) who was rather rude to me.
But mainly it's been met with people getting defensive, which isn't necessary - if the colours don't bother you then great, you don't have a problem. It's the intolerance of a few people to me having a negative opinion about one aspect of the camera that just doesn't make sense to me. Why do they care so much what I think?
It's the C100 video thread, right? I called you out for being inconsistent in your judgement because a few badly graded shots can ruin an A7S clip for you but not the C100 clip, which had unnatural skin tones in some parts. And if you recall, I did say that most of the C100 clip was great.
By the way, discussion boards are where we dissect each other's opinions (in a civil manner of course), so please don't be too offended when yours take a little too much heat :)
Is the majority online really idiots? (Ghostbusters Trailer)
In: Cameras
Posted
Meanwhile, Roland Deschain is being played by a black actor, and if you don't like it you're a racist...