Petri Teittinen
Well-known member
Hi folks,
when reading this post, please keep repeating to yourself "don't shoot the messenger" -- because that's all I am.
I got home from Paris, France a few moments ago, having attended a 3-day 3D event. I met a bunch of interesting people there and saw several enlightening presentations. I also got to chatting with some generally very pleasant people, but one discussion left a bad taste in my mouth.
I was talking with someone about shooting 3D in 48 and 60 fps. I began describing a test I had shot, when another person butted in the conversation and began explaining how RED (R1 in this case) is not a 4K camera.
[Out of respect for this person's considerable achievements in both cinematography and stereography I will not name him. Also, I did not record the conversation so the quotes are not 100% word-for-word accurate.]
"OK", I said, "sure, after debayering it's somewhat less than 4K, I agree". But that wasn't good enough for him. Instead, he went on to say that R1 is nowhere near a 4K camera. "It's a good 2K camera and makes nice 2K images, but 4K? No, that's only marketing." "But it's been measured", I said and referred to resolution charts. "Charts prove nothing", he replied, "because they don't contain real detail. Shoot a live scene and blow up a part of the image, then compare the blown up section to a similar section from an image shot with another camera. The detail is not there!"
(My impression was he meant RED's image shows no more detail than an image shot on a professional 2K camera.)
Being a total nobody I didn't really have a position to argue from, so I only said - very politely - that I have to disagree with him. And that's when the discussion took a very odd turn. "You see, it's not technically possible!", he said. "There are 8 million pixels; there's no way to capture all that detail using the bitrate RED offers. 36 megabits is not enough for 4K!"
(I have to admit I can't remember if he said megabits or megabytes... but read on.)
"I have an old HD video camera, a few years old - and it shoots at a higher bitrate than RED! And it's not even full 2K! So no way can RED save 4K detail with such a low bitrate." Then he went on to say that RED EPIC shoots at a much higher bitrate which might be enough for 4K. But I guess he wasn't done with bashing the R1 yet: "And they used to overheat all the time!", he exclaimed and began describing how the early firmwares were not using all the ASICs of the camera; how some of the ASICs were just sitting there idle; and that (somehow) caused the cameras to overheat. No, it doesn't make any sense to me, either.
Anyhoo, I told him my R1 has never overheated and I've used it in very warm conditions. He backpedaled a bit, said something about firmware fixes and ended with "Well, they used to overheat in the past." And as if all this wasn't enough, the person I had been talking to in the first place piped in a few times, poo-pooing Mr. Jannard ("the guy used to make sunglasses!") and RED in general ("they didn't know what they were doing"). I excused myself from the conversation pretty soon after this. I wanted to explain the difference between bits and bytes and different compression codecs but I got the feeling that it would've been a waste of time.
when reading this post, please keep repeating to yourself "don't shoot the messenger" -- because that's all I am.
I got home from Paris, France a few moments ago, having attended a 3-day 3D event. I met a bunch of interesting people there and saw several enlightening presentations. I also got to chatting with some generally very pleasant people, but one discussion left a bad taste in my mouth.
I was talking with someone about shooting 3D in 48 and 60 fps. I began describing a test I had shot, when another person butted in the conversation and began explaining how RED (R1 in this case) is not a 4K camera.
[Out of respect for this person's considerable achievements in both cinematography and stereography I will not name him. Also, I did not record the conversation so the quotes are not 100% word-for-word accurate.]
"OK", I said, "sure, after debayering it's somewhat less than 4K, I agree". But that wasn't good enough for him. Instead, he went on to say that R1 is nowhere near a 4K camera. "It's a good 2K camera and makes nice 2K images, but 4K? No, that's only marketing." "But it's been measured", I said and referred to resolution charts. "Charts prove nothing", he replied, "because they don't contain real detail. Shoot a live scene and blow up a part of the image, then compare the blown up section to a similar section from an image shot with another camera. The detail is not there!"
(My impression was he meant RED's image shows no more detail than an image shot on a professional 2K camera.)
Being a total nobody I didn't really have a position to argue from, so I only said - very politely - that I have to disagree with him. And that's when the discussion took a very odd turn. "You see, it's not technically possible!", he said. "There are 8 million pixels; there's no way to capture all that detail using the bitrate RED offers. 36 megabits is not enough for 4K!"
(I have to admit I can't remember if he said megabits or megabytes... but read on.)
"I have an old HD video camera, a few years old - and it shoots at a higher bitrate than RED! And it's not even full 2K! So no way can RED save 4K detail with such a low bitrate." Then he went on to say that RED EPIC shoots at a much higher bitrate which might be enough for 4K. But I guess he wasn't done with bashing the R1 yet: "And they used to overheat all the time!", he exclaimed and began describing how the early firmwares were not using all the ASICs of the camera; how some of the ASICs were just sitting there idle; and that (somehow) caused the cameras to overheat. No, it doesn't make any sense to me, either.
Anyhoo, I told him my R1 has never overheated and I've used it in very warm conditions. He backpedaled a bit, said something about firmware fixes and ended with "Well, they used to overheat in the past." And as if all this wasn't enough, the person I had been talking to in the first place piped in a few times, poo-pooing Mr. Jannard ("the guy used to make sunglasses!") and RED in general ("they didn't know what they were doing"). I excused myself from the conversation pretty soon after this. I wanted to explain the difference between bits and bytes and different compression codecs but I got the feeling that it would've been a waste of time.