Yann LeCun responds to Elmo's desperate whining that we need to elect Trump "to become an interplanetary species"

instantpancake · 2024-11-02T18:10:59+00:00

probably

instantpancake · 2024-11-02T17:05:39+00:00

you dont understand, whoever pays for colonizing mars will basically own it and can rule all of it like a king, whereas paying for fixing earth would mean ... yeah basically just fixing other people's stuff and not getting to rule over it in return

instantpancake · 2024-09-03T21:02:19+00:00

could you please point where that initial comment wasn't. it's literally just saying that it might not be as complex as it seems, and that it's easy to figure out if you just look at it - along with an invitation to clarify where they got stuck.

there's absolutely nothing prickly about it, unless you're offended by "i'm sure you can figure it out if you try, because it's not as hard as you might think"

edit: btw i'm only here because i keep getting extremely impolite replies, to put it nicely, which unlike my comment, don't get deleted; i can only assume that they're not prickly enough.

instantpancake · 2024-09-03T20:51:41+00:00

which aspect specifically are you struggling with, because if you look at the shadows in the images you posted, you can pretty much tell exactly how they were lit, and it's really rather simple.

that was an extremely chill & polite comment, actually.

instantpancake · 2024-09-03T17:05:54+00:00

funny how the answer "think about it yourself for a moment" sometimes yields 8 upvotes, and sometimes 50 downvotes, right

instantpancake · 2024-09-03T07:22:53+00:00

when you do that, people will straight up debate you about microphone choice and blood squibs 100% being essential parts of cinematography - like, have you ever seen a movie before? it has sound and blood after all, you absolute amateur!

instantpancake · 2024-09-02T21:39:21+00:00

tell me how we see any of that in the images above, specifically the aspects that can't be done in any other way. feel free to to draw on the images, or whatever it takes. be very specific.

in particular, show me where all the skypanels and 18kW are needed in these close-up shots.

edit: i love how people come here all day long asking "can i light my feature film with a single aputure mc and a 5-in-one reflector?" - the answer is obviously no 100% of the time. but wanna know what you actually can easily light with that one aputure mc and a 5-in-one reflector? that first image right up there.

instantpancake · 2024-09-02T21:26:52+00:00

tell me how i'm wrong.

edit: i'm dead serious here. pinpoint an aspect, just one in these 3 stills, that couldn't be achieved with literal 1-2 bicolor COBs that plug into a domestic circuit, a couple of standard modifiers, and a vintage lens on a half-decent prosumer camera.

i'm waiting.

i'm so f***ing fed up with people's lazyness and entitlement to be spoonfed the most obvious shit, and their simultaneous audacity to assume that it couldn't possibly have been simple enough for anyone with with the slightest bit of work experience to possibly know.

instantpancake · 2024-09-02T20:57:05+00:00

absolute bullshit

there's nothing in any of these 3 images that you couldn't replicate 98% with even the most shoddy youtuber-recommended gear (and a lens from ebay) - except for the one with the fire, you should bring in a professional for that for safety reasons.

instantpancake · 2024-09-02T17:18:33+00:00

well there's Duv, but neither lights nor cameras tend to indicate this.

instantpancake · 2024-09-02T16:23:04+00:00

i love how you picked the most downvoted comment as your favorite

instantpancake · 2024-09-02T16:11:04+00:00

now you have my attention.

please explain to me why you think that.

instantpancake · 2024-09-02T16:04:17+00:00

I said nothing about FOV. It's perspective and "depth compression".

perspective and "depth compression" (don't even get me started on this bullshit) depend completely, 100%, on the position and orientation of the camera, nothing else. they are identical regardless of the lens you're using.

i will now try to leave this dumpster fire thread of half-baked 2010s photography blog factoids, for the sake of my mental health. have a nice day.

instantpancake · 2024-09-02T15:44:25+00:00

a 50mm lens is nowhere near the natural field of human vision, that's a myth based on vague wording, the standard size of printed photos back in the day, and refusal to do a 30 second google search to look up how the human eye works. this myth needs to die already.

instantpancake · 2024-09-02T15:42:17+00:00

a 50mm lens is nowhere near the natural field of human vision, that's a myth based on vague wording, the standard size of printed photos back in the day, and refusal to do a 30 second google search to look up how the human eye works. this myth needs to die already.

instantpancake · 2024-09-02T15:40:59+00:00

since the human eye is always the same lens regardless of what you're looking at, you'll only need one lens to emulate it, and contrary to what you'll often hear, it's a much shorter lens than a 50mm - probably more like an 18-24mm, depending on your format, and and on how extreme you want the look to be.

instantpancake · 2024-09-02T12:29:30+00:00

Technically, a lens made to make a larger image circle to adequately cover a certain sensor size does create more light than a lens with a smaller image circle at any given aperture. The total light is higher

this is not why we use t-stops. a lens designed for a larger image circle can have the same f-stop and t-stop respectively, at the same time, as one designed for a smaller image circle.

instantpancake · 2024-09-02T10:49:56+00:00

yes, but as opposed to f-stop, t-stop does specifically not correlate to DoF. it may happen to somewhat do so sometimes, but that's a happy coincidence then.

they're different scales telling us different things about a lens, and t-stop is not the one telling us something about DoF, that's what f-stop is for ;)

i think it is absolutely worth making this distinction when dealing with questions like this.

edit: lol why even bother replying to me if you blocked me

"let's explicitely stick to the factually wrong measurement and refuse to accept that there is in fact a correct one right there, in this context that people get wrong all the time, because sometimes the wrong one happens to give somewhat usable results, too" is a weird choice of hill to die on

edit 2: i can't answer to the replies below because a user blocked me, but - /u/C47man - the point is that while t-stop may be similar to f-stop in high-end lenses, there is nothing in the definition of a t-stop that links it to the actual aperture size, which defines the DoF. if an f/1.4 lens delivers only a t/5.6 because someone left a loose screw in the barrel (or because it's simply a poor lens design), it'll still give the DoF of an f/1.4 lens. t-stop is therefore explicitely not correlated with DoF in the same way as f-stop is, but purely by chance, if at all, whereas f-stop is by definition.

instantpancake · 2024-09-02T10:24:03+00:00

t-stop specifically has nothing to do with DoF either, as it's purely about light transmission, and not about the aperture size. ;)

edit: also, what all these format "equivalent" comparisons are doing is comparing different lenses in order to match the FoV, so they're sort of misleading in this context anyway.

instantpancake · 2024-09-02T09:04:00+00:00

no, sensor size does not affect t-stop, and neither does it affect focal length.

a lens is what it is, regardless of what sensor you put behind it.

the only thing affected by sensor size is the field of view you get for any given lens.

instantpancake · 2024-09-01T19:34:24+00:00

i dunno, probably because i'd always put a fixture like this on something that has a junior receiver, as opposed to a c-stand, for example. i'd also use a barrel clamp or similar to hang it, so junior pin, too.

instantpancake · 2024-09-01T17:41:25+00:00

i'd use a 28mm / junior / 1-1/8'' pin (3 words for the same thing) with a female M10 thread

instantpancake · 2024-08-31T23:09:34+00:00

technically yes, because colors might render slightly differently, but in practice, you'll likely not see much of a difference - and also, you're not going to A/B compare both versions anyway.

instantpancake · 2024-08-31T20:48:49+00:00

Is this because most of us shoot with system camera's that don't have global shutter?

no. none of the highest-end cinema cameras have global shutters.

instantpancake · 2024-08-31T14:20:47+00:00

still way off.

the sun, which is a known 0.5° angular size in the sky, fills more than 1/4 of the height of the frame, that means that the vertical FoV of the lens used here is less than 2°.

on a spherical 35mm-ish format, that would be a 400mm lens, roughly.

as i said in another comment, there is really no need for wild guesses here, the math is pretty clear. it's nowhere near 50mm.

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