Maybe is about heat, shortening the life of the sensor??
thoughts on the D3xs?
(34 posts) (13 voices)-
doubt it's a heat thing - I'm no physicist or engineer, but I would imagine a larger sensor would be able to dissipate the heat more rapidly?
I'll put strong money on it having video - Nikon is notorious for mid-cylce upgrades, so besides tweaks to the processor, buffer, sensor, and menu layout (to align with D3s), they'll add video similar to the D3s.
Question of size will be key.
I suspect 720p.
Why?
Because the D4/D4x/D400 will *hopefully* bear the 1080p mark and differentiate product lines. . .
Posted 3 years ago # -
I don't think it'll have video because of the "evidence" I've seen coming from Sony. The a900 replacement will have a 30 plus megapixel Super HAD CCD (II?) sensor which will probably NOT have video capability. The D3X is mainly a studio camera. Studio/portrait photographers don't need 30 megapixels of 720 or 1080 video. Imagine the size of those video files!!!! Those types of photographers need high resolution, high dynamic range, and high color clarity. A D3XS would improve in those areas against the D3X.
Those who want/need video need a camera for mobility and versatility like the D90,D300, and D3S. So those are the cameras that will see HD video. I think the D90 replacement will be the first Nikon with 1080 video. Maybe Nikon will go back to a CCD on that camera too?
Posted 3 years ago # -
shivaswrath said:
doubt it's a heat thing - I'm no physicist or engineer, but I would imagine a larger sensor would be able to dissipate the heat more rapidly?I'm pretty sure that's right. More area to sink it from and smaller power generated/area.(?)
Regardless of sensor resolution, 1080 video is 2MP, Niko. The 1080 refers to vertical lines of resolution and the aspect ratio is 16:9, so it's 1080x(1080x16/9) = 1080x1920 = 2MP. File size is essentially the same for any 1080 video at the same frame rate, same interlace method (p or i), and same codec.
But I think you're right about no video on a 30+ MP camera at least for now because you still do have to read out from the entire sensor 24 or 30 times per second, and that is a huge bandwidth requirement. This site claims 1080p at 60Hz requires 125Mb/s of bandwidth, so that would put 30MP at 30Hz around 1Gb/s! But someday it will probably happen in a camera that doesn't cost you a year's salary like those 6k/9k RED epics do.
Posted 3 years ago # -
Now the very latest on rumors says 24mp and iso 100-3200 with H1 L1 etc. Is this a big enough improvement on the D3X which goes to iso 1600? I think it might have more megapixels because late this year and all next year, I believe we will see an explosion in the MP wars. I know, I know megapixels don't matter..
Posted 3 years ago # -
Notice the 1percent probability rating on that rumor though
Posted 3 years ago # -
jonnyapple said:
Regardless of sensor resolution, 1080 video is 2MP, Niko. The 1080 refers to vertical lines of resolution and the aspect ratio is 16:9, so it's 1080x(1080x16/9) = 1080x1920 = 2MP. File size is essentially the same for any 1080 video at the same frame rate, same interlace method (p or i), and same codec.I have been thinking about this.. and .. I am not certain it is 2MP.. isnt each pixel 3 colours on the TV? wont that mean that the camera needs to have "raw/native" 2MP? ie each raw pixel is made up of 4 pixels on a digital camera. so it needs to be at least an 8MP(probably at least 10MP to account for the dimensions) camera to do 1080p?
Posted 3 years ago # -
That's right that each pixel has 3 colors, but you're thinking too much like a photographer, hearty. ;-)
When you say 2MP, it's already assumed that there are data for all three channels at every pixel. That's not true in raw, which is why a lossless raw file can be 3 times smaller than a lossless tiff—there's no interpolation in the raw to get RGB values for each pixel.
Nikon doesn't offer raw video...yet.
Posted 3 years ago # -
I was referring to the size of the "bandwidth" coming from the sensor and not the "storage" size jonny. Regardless of how you "calculate" it there's a lot of data coming from a sensor that size.
Posted 3 years ago #
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