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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

4k > 2k

S

Salem Kapic

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Maybe I have missed something, but as far as I remember in the early camera development phase the specification charts used to mention 4K downsample to 2K recording mode (I thought that the Mysterium should have the downres capability?)
Is that concept now abandoned or ...?

The use of full frame sensor and recording on 2K would be an advantage. (saving bandwidth)


Mr. Graeme, Mr. Stuart?
 
@ the moment, the scaling is not on the map.

There has been mentioned a "TV" version of the firmware, but it's in the blue right now...
 
I think Jim has stated several times that he doesn't see any value in doing in camera downsampling.

Perhaps the camera doesn't have enough gpu's to perform the donrez operation on top of the R3D wavelet compression?
 
hit the search for this topic...

Jim
 
i think 2k scaling's been abandoned. If i remember correctly, Jim said you can always easily downres to 2k in post, and still have ur 4k negatives, plus apparently the processing power involved in downscaling in realtime negated any benefit as far as framerates etc.

im not holding my breath

EDIT: did it really take me that long to type that? lol
 
Brandon said:
plus apparently the processing power involved in downscaling in realtime negated any benefit as far as framerates etc.
Click to expand...

The only real reason to have 2K downsampled would be increased fps.
 
Brandon said:
easily downres to 2k in post, and still have ur 4k negatives
Click to expand...

Still, when you are out in the middle of White Sands, Mojave desert or Sahara or anywhere; it could be really nice to use full 4K sensor and record in 2K. You'll need power and large storage for 4K, even if it is preferable.
 
Tom said:
The only real reason to have 2K downsampled would be increased fps.
Click to expand...
Only to 60 though. The chip clock speed at 4k is MAX 60 fps. And if I remember right, the only way to get that fps is through the Raw data port (which don't know if it's happening anymore or not). So the 4k > 2k for more fps argument is a weak one at best seemings how already there is 120 fps at 2k.
 
Tom said:
The only real reason to have 2K downsampled would be increased fps.
Click to expand...

you don't get increased FPS because ur capturing the full 4k image PLUS downsampling to 2k. So the camera's working HARDER than just shooting 4k.

at least thats the way i understood it.
 
JNAD said:
Still, when you are out in the middle of White Sands, Mojave desert or Sahara or anywhere; it could be really nice to use full 4K sensor and record in 2K. You'll need power and large storage for 4K, even if it is preferable.
Click to expand...

if for some reason 4k isn't workable, you can always shoot 2k windowed. still works great. :)
 
Brandon said:
if for some reason 4k isn't workable, you can always shoot 2k windowed. still works great. :)
Click to expand...


Yes, but full format DOF is adorable!
Is it possible for camera hardware to take only every second "pixel" (group of pixel in Bayer pattern)? In that case we will save camera processor!
 
Yes, but full format DOF is adorable!
Is it possible for camera hardware to take only every second "pixel" (group of pixel in Bayer pattern)? In that case we will save camera processor!
 
I guess I don't understand the aversion to 2K windowed mode. Isn't it comparable to super 16 and isn't the size of the window comparable to the size of S16 film? To me it just makes sense to do it this way. Downsampling would just be extra processing I don't want in camera.
 
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