Marc, I don't think RED have ever claimed their images resolve to 4K. Yes, the sensor is 4+K, and the images recorded are 4K, or even 4.5K. Just like your tiny pen cameras claim to record 1080p, when it is barely SD upresed. Similarly, the HDSLR cameras do 720p at best, but it is always advertised as 1080p. There's nothing inaccurate about that. It IS recording a 4K image. Much like the Alexa is recording a 2.8K image. Few camera companies advertise their actual resolved resolution - this is normally tested by users - and RED is one of the few such companies.
Right from the start they have told us that at best, Debayer resolves 80% of the details. We have been made aware that 4.5K resolves to 3.7K; 4K to 3.2K. And we also know that 5K from the Epic will resolve to around 4K. Much like Alexa's 2.8K image will resolve to about 2K. It is a general rule of Bayer mask sensors.
As for the dynamic range, clearly you are talking about their original Mysterium sensor. I can't say I was impressed with the original RED One. But the new Mysterium-X is quite incredible. They advertise 13.5 stops, and that is exactly what you can get with the right post processing. However, a 13.5 stop is likely to be a low contrast, and a less than pleasing image. If you are looking for high contrast images, you will likely get about 11 usable stops. But that is not to say that it doesn't do 13.5 stops - clearly it does under the right circumstances.
Also, Marc, what you are stating is your opinions expressed as facts. You are clearly not allowing enough respect to fellow professionals like David Fincher, Lars Von Trier or the thousands who have used RED. Just because the RED is not right for you, for whatever reason, doesn't make it a "scam". There are enough artists who have embraced RED and never looked back since. It's not because they are fools picking an "inferior technology". I can assure you that Fincher chose M-X after rigorous testing because it was the best camera for his film. A camera is a personal choice - I think you should respect the choice of those who love RED's images.
Finally, I am not so sure the Alexa image can hold up to 35mm film or RED at 4K projections. At 2K, sure, I totally expect Alexa to produce remarkable images. Regardless, Alexa looks like a splendid camera, and am looking forward to more reviews and opinion. As an Arri fan, it is exciting to have the Arri name on the very latest technology!
Last edited by Subhadip
on Wed Oct 13, 2010 10:48 am, edited 1 time in total.