01-09-2019, 10:38 AM

01-09-2019, 07:09 PM

For those who don't watch the details - no details - full details at NAB q2 of this year. I guess the sensor would have to be around 36MP to support 8k but maybe they are interleaving images or something to keep the density lower ?

01-10-2019, 02:26 PM

32? 36??

8k is 7680 horizontal and 4320 vertical.

7680 / 4 = 1920.

1920 * 3 = 5760.

7680 * 5760 = 44.2Mp.

8k is 7680 horizontal and 4320 vertical.

7680 / 4 = 1920.

1920 * 3 = 5760.

7680 * 5760 = 44.2Mp.

01-10-2019, 04:33 PM

(01-10-2019, 02:26 PM)Brightcolours Wrote: [ -> ]32? 36???

8k is 7680 horizontal and 4320 vertical.

7680 / 4 = 1920.

1920 * 3 = 5760.

7680 * 5760 = 44.2Mp.

8K width X "6K" width? Why?

8K width X 8K height is still 7680 (4x 1920) x 4320 (4x 1080). That's 33.2 Mpix, or if you define it old school. 31.6 Mpix (generally rounded to 32 Mpix).

Kind regards, Wim

01-10-2019, 05:30 PM

(01-10-2019, 04:33 PM)wim Wrote: [ -> ]Uhmm, no. You certainly do not get it.(01-10-2019, 02:26 PM)Brightcolours Wrote: [ -> ]32? 36???

8k is 7680 horizontal and 4320 vertical.

7680 / 4 = 1920.

1920 * 3 = 5760.

7680 * 5760 = 44.2Mp.

8K width X "6K" width? Why?

8K width X 8K height is still 7680 (4x 1920) x 4320 (4x 1080). That's 33.2 Mpix, or if you define it old school. 31.6 Mpix (generally rounded to 32 Mpix).

Kind regards, Wim

8K width = 7680 pixels.

So, what is a 4/3rds sensor? 4x3 aspect ratio.

7680 x 4320 is 16 x 9, not 4x3. MFT is called MFT (MicroFourThirds, not MSN (MicroSixteenNineths))...

Now calculate how many MP the MFT sensor needs to have to do 8K video.

Indeed, exactly as I showed you: 44.2mp.

01-10-2019, 09:30 PM

(01-10-2019, 05:30 PM)Brightcolours Wrote: [ -> ]I actually did get that, but the question is whether a video-cam at 8K really needs 44 (or 42.3 old style) Mpix, or more specifically a 4:3 layout. It can still be a 4/3 sensor in size (diameter), and have an 8K layout. I should probably have been clearer on that.(01-10-2019, 04:33 PM)wim Wrote: [ -> ]Uhmm, no. You certainly do not get it.(01-10-2019, 02:26 PM)Brightcolours Wrote: [ -> ]32? 36???

8k is 7680 horizontal and 4320 vertical.

7680 / 4 = 1920.

1920 * 3 = 5760.

7680 * 5760 = 44.2Mp.

8K width X "6K" width? Why?

8K width X 8K height is still 7680 (4x 1920) x 4320 (4x 1080). That's 33.2 Mpix, or if you define it old school. 31.6 Mpix (generally rounded to 32 Mpix).

Kind regards, Wim

8K width = 7680 pixels.

So, what is a 4/3rds sensor? 4x3 aspect ratio.

7680 x 4320 is 16 x 9, not 4x3. MFT is called MFT (MicroFourThirds, not MSN (MicroSixteenNineths))...

Now calculate how many MP the MFT sensor needs to have to do 8K video.

Indeed, exactly as I showed you: 44.2mp.

So far, I've only seen it announced as a 32 Mpix camera, when a number is given, so I guess we'll have to wait and see.

However, density-wise it would indeed be a 42.3 or 44 Mpix sensor, so a bit over twice as dense as current implementations from Panasonic and Olympus.

Kind regards, Wim

01-11-2019, 12:06 PM

(01-10-2019, 09:30 PM)wim Wrote: [ -> ](01-10-2019, 05:30 PM)Brightcolours Wrote: [ -> ]I actually did get that, but the question is whether a video-cam at 8K really needs 44 (or 42.3 old style) Mpix, or more specifically a 4:3 layout. It can still be a 4/3 sensor in size (diameter), and have an 8K layout. I should probably have been clearer on that.(01-10-2019, 04:33 PM)wim Wrote: [ -> ]Uhmm, no. You certainly do not get it.

8k is 7680 horizontal and 4320 vertical.

7680 / 4 = 1920.

1920 * 3 = 5760.

7680 * 5760 = 44.2Mp.

8K width X "6K" width? Why?

8K width X 8K height is still 7680 (4x 1920) x 4320 (4x 1080). That's 33.2 Mpix, or if you define it old school. 31.6 Mpix (generally rounded to 32 Mpix).

Kind regards, Wim

8K width = 7680 pixels.

So, what is a 4/3rds sensor? 4x3 aspect ratio.

7680 x 4320 is 16 x 9, not 4x3. MFT is called MFT (MicroFourThirds, not MSN (MicroSixteenNineths))...

Now calculate how many MP the MFT sensor needs to have to do 8K video.

Indeed, exactly as I showed you: 44.2mp.

So far, I've only seen it announced as a 32 Mpix camera, when a number is given, so I guess we'll have to wait and see.

However, density-wise it would indeed be a 42.3 or 44 Mpix sensor, so a bit over twice as dense as current implementations from Panasonic and Olympus.

Kind regards, Wim

The camera clearly is not a video camera, but a photo camera with 8K video (see form factor).

What makes MFT is the 4x3 aspect ratio.

What is the diamater of a rectangle?

01-12-2019, 12:21 AM

Just for reference - the 4K Blackmagic MFT camera has a sensor size of 18.96mm x 10mm.

I suspect that Sharp will follow that approach (given the similarities in design I wouldn't be surprised if the Blackmagic camera is actually made by Sharp).

https://www.blackmagicdesign.com/au/prod...s/W-CIN-12

I suspect that Sharp will follow that approach (given the similarities in design I wouldn't be surprised if the Blackmagic camera is actually made by Sharp).

https://www.blackmagicdesign.com/au/prod...s/W-CIN-12

01-12-2019, 11:46 AM

(01-11-2019, 12:06 PM)Brightcolours Wrote: [ -> ]It is about the diameter of the (usable) image circle, not really about the diameter of the rectangle, AFAIAC.(01-10-2019, 09:30 PM)wim Wrote: [ -> ](01-10-2019, 05:30 PM)Brightcolours Wrote: [ -> ]I actually did get that, but the question is whether a video-cam at 8K really needs 44 (or 42.3 old style) Mpix, or more specifically a 4:3 layout. It can still be a 4/3 sensor in size (diameter), and have an 8K layout. I should probably have been clearer on that.

8k is 7680 horizontal and 4320 vertical.

7680 / 4 = 1920.

1920 * 3 = 5760.

7680 * 5760 = 44.2Mp.

8K width X "6K" width? Why?

8K width X 8K height is still 7680 (4x 1920) x 4320 (4x 1080). That's 33.2 Mpix, or if you define it old school. 31.6 Mpix (generally rounded to 32 Mpix).

Kind regards, Wim

8K width = 7680 pixels.

So, what is a 4/3rds sensor? 4x3 aspect ratio.

7680 x 4320 is 16 x 9, not 4x3. MFT is called MFT (MicroFourThirds, not MSN (MicroSixteenNineths))...

Now calculate how many MP the MFT sensor needs to have to do 8K video.

Indeed, exactly as I showed you: 44.2mp.

So far, I've only seen it announced as a 32 Mpix camera, when a number is given, so I guess we'll have to wait and see.

However, density-wise it would indeed be a 42.3 or 44 Mpix sensor, so a bit over twice as dense as current implementations from Panasonic and Olympus.

Kind regards, Wim

The camera clearly is not a video camera, but a photo camera with 8K video (see form factor).

What makes MFT is the 4x3 aspect ratio.

What is the diamater of a rectangle?

(01-12-2019, 12:21 AM)Klaus Wrote: [ -> ]Just for reference - the 4K Blackmagic MFT camera has a sensor size of 18.96mm x 10mm.

I suspect that Sharp will follow that approach (given the similarities in design I wouldn't be surprised if the Blackmagic camera is actually made by Sharp).

https://www.blackmagicdesign.com/au/prod...s/W-CIN-12

This indeed.

Kind regards, Wim

01-12-2019, 11:49 AM

Similarities in design? Really?