|
HDR Dataset
Hi Fadi- You can find some ARRI demo footage here: Camera Sample Footage (arri.com) ARRIRAW is 12-bit log encoded, which is equivalent to 16-bit linear in terms of information recorded but eliminates
Hi Fadi- You can find some ARRI demo footage here: Camera Sample Footage (arri.com) ARRIRAW is 12-bit log encoded, which is equivalent to 16-bit linear in terms of information recorded but eliminates
|
By
Art Adams
· #1962
·
|
|
Card problems Alexa Mini / Angelbird C-Fast 2.0
There is a trick for when the last clip isn’t playable because the camera lost power or the card was ejected too soon. Put it back in the camera and roll a new clip for about a second. The camera will
There is a trick for when the last clip isn’t playable because the camera lost power or the card was ejected too soon. Put it back in the camera and roll a new clip for about a second. The camera will
|
By
Art Adams
· #1942
·
|
|
Card problems Alexa Mini / Angelbird C-Fast 2.0
Hi Lenny- I’m not an expert on this stuff, but I do know that SSD cells lose their ability to hold a charge over time. Here’s an article from Backblaze on how SSD drives fail over time: https://www.ba
Hi Lenny- I’m not an expert on this stuff, but I do know that SSD cells lose their ability to hold a charge over time. Here’s an article from Backblaze on how SSD drives fail over time: https://www.ba
|
By
Art Adams
· #1939
·
|
|
Card problems Alexa Mini / Angelbird C-Fast 2.0
If you run into issues with a C-Fast card in a Mini—it doesn’t mount—put it in a freezer overnight. That may fix it long enough to get the data off. In the past we saw this a lot with unapproved media
If you run into issues with a C-Fast card in a Mini—it doesn’t mount—put it in a freezer overnight. That may fix it long enough to get the data off. In the past we saw this a lot with unapproved media
|
By
Art Adams
· #1932
·
|
|
Sony FX9 camera test
Pawel, I agree with this completely. While all cameras are not equal that does not mean that perfect cameras exist. I’m not sure how you’d even define that. Alfonso’s tests are very thorough, and whil
Pawel, I agree with this completely. While all cameras are not equal that does not mean that perfect cameras exist. I’m not sure how you’d even define that. Alfonso’s tests are very thorough, and whil
|
By
Art Adams
· #1879
·
|
|
Sony FX9 camera test
The camera choice is all too often driven by ego and politics, rather than camera capabilities. This can be true. I once had to shoot a marketing product roll-out where the client mandated we shoot in
The camera choice is all too often driven by ego and politics, rather than camera capabilities. This can be true. I once had to shoot a marketing product roll-out where the client mandated we shoot in
|
By
Art Adams
· #1877
·
|
|
Sony FX9 camera test
The differences that exist between the very best and the least good of the large sensor cameras are small. Small enough that give them to a competent operator, shoot some random typical scenes with th
The differences that exist between the very best and the least good of the large sensor cameras are small. Small enough that give them to a competent operator, shoot some random typical scenes with th
|
By
Art Adams
· #1874
·
|
|
Sony FX9 camera test
>>>You are not suddenly going to see a camera with dramatically greater image quality unless you do something radically different. I’m going to disagree with that. You can create great looking images
>>>You are not suddenly going to see a camera with dramatically greater image quality unless you do something radically different. I’m going to disagree with that. You can create great looking images
|
By
Art Adams
· #1872
·
|
|
Wave-Freefly Hi Speed Camera
Hi Cynthia- If there’s enough IR pollution then yes, the blacks would be contaminated along with everything else. At lower levels only fabrics and certain materials will noticeably change color. In th
Hi Cynthia- If there’s enough IR pollution then yes, the blacks would be contaminated along with everything else. At lower levels only fabrics and certain materials will noticeably change color. In th
|
By
Art Adams
· #1851
·
|
|
Wave-Freefly Hi Speed Camera
Andrew, I can’t answer that as I don’t know that camera well enough, or at all really. I do know that black shading will often solve that issue in other cameras. Sorry! -Art __________________________
Andrew, I can’t answer that as I don’t know that camera well enough, or at all really. I do know that black shading will often solve that issue in other cameras. Sorry! -Art __________________________
|
By
Art Adams
· #1848
·
|
|
Wave-Freefly Hi Speed Camera
Hi Andrew- You’re thinking about black shading, not black balance. Black balance will just make sure black is black. Black shading is about eliminating noise and fixed patterns. -Art _________________
Hi Andrew- You’re thinking about black shading, not black balance. Black balance will just make sure black is black. Black shading is about eliminating noise and fixed patterns. -Art _________________
|
By
Art Adams
· #1846
·
|
|
Wave-Freefly Hi Speed Camera
Just to be pedantically pedantic, it’s black shading that addresses fixed pattern noise. My understand is that you’re creating an offset map that addresses unevenness in noise across the sensor, often
Just to be pedantically pedantic, it’s black shading that addresses fixed pattern noise. My understand is that you’re creating an offset map that addresses unevenness in noise across the sensor, often
|
By
Art Adams
· #1843
·
|
|
Color Charts for Mars
>>>A grey card helps identify the white point of the scene. How the camera reacts to that is camera dependent. That’s a better way of saying that. And, as best I can tell, that’s just a gain adjustmen
>>>A grey card helps identify the white point of the scene. How the camera reacts to that is camera dependent. That’s a better way of saying that. And, as best I can tell, that’s just a gain adjustmen
|
By
Art Adams
· #1830
·
|
|
Color Charts for Mars
I would think it would send raw back. Processing the image before transmission seems like a waste of processing power and energy when you could do it just as easily on Earth, plus you can update the p
I would think it would send raw back. Processing the image before transmission seems like a waste of processing power and energy when you could do it just as easily on Earth, plus you can update the p
|
By
Art Adams
· #1827
·
|
|
Color Charts for Mars
>>>A grey card seemed to work well for a long time…. That’s because film has the color science baked in. If you print the gray card as neutral then everything else falls in line (depending on the proc
>>>A grey card seemed to work well for a long time…. That’s because film has the color science baked in. If you print the gray card as neutral then everything else falls in line (depending on the proc
|
By
Art Adams
· #1826
·
|
|
Further experiments with the G12
As usual, it looks much darker on Vimeo than it does on my system. Hi Geoff- I wonder if that has to do with the old Quicktime gamma bug. When I was a freelancer I found that the X264 encoder got arou
As usual, it looks much darker on Vimeo than it does on my system. Hi Geoff- I wonder if that has to do with the old Quicktime gamma bug. When I was a freelancer I found that the X264 encoder got arou
|
By
Art Adams
· #1693
·
|
|
Difference between two Alexa Mini Cameras
Could you send me higher-res images? I can pass this on to someone internally for a look. -Art _______________________________________________________Art AdamsCinema Lens SpecialistARRI Inc. 3700 Va
Could you send me higher-res images? I can pass this on to someone internally for a look. -Art _______________________________________________________Art AdamsCinema Lens SpecialistARRI Inc. 3700 Va
|
By
Art Adams
· #1653
·
|
|
HDR in the real world
>Therefore, I would like to turn myself in to whatever authorities have jurisdiction over my near total disregard for viewing conditions. I bought an HDR TV just before lockdown. I didn’t want to spen
>Therefore, I would like to turn myself in to whatever authorities have jurisdiction over my near total disregard for viewing conditions. I bought an HDR TV just before lockdown. I didn’t want to spen
|
By
Art Adams
· #1643
·
|
|
How often do you see dead pixels?
Not often, but the latest repair ( not sensor related) at Arri for one of our Alexa Mini’s showed one dead pixel, which apparently they are able to hide. This is standard procedure in most cameras. So
Not often, but the latest repair ( not sensor related) at Arri for one of our Alexa Mini’s showed one dead pixel, which apparently they are able to hide. This is standard procedure in most cameras. So
|
By
Art Adams
· #1556
·
|
|
ProRes "RAW"?
In a bayer pattern, there are 4 subpixels per pixel. They capture data as Y, but they are already 'colored' by a microfilter. Debayering assignes RGB values by essentially transforming the 4xY into RG
In a bayer pattern, there are 4 subpixels per pixel. They capture data as Y, but they are already 'colored' by a microfilter. Debayering assignes RGB values by essentially transforming the 4xY into RG
|
By
Art Adams
· #1533
·
|