Hi Alfonso. This agrees with my own findings. A touch more DR at 320 than 800. For me though the biggest difference becomes visible during practical shooting where at 320 ISO the final highlight roll

Well Art, we will have to agree to disagree. 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 opera

Cynthia. I think we need to be realistic about differences and improvements between cameras. Most of the current cameras are capable of producing great images. Sensor technology is not significantly c

Alfonso. I look forward to reading your findings. Alister Chapman Cinematographer - DIT - Consultant alister1@... UK Mobile/Whatsapp +44 7711 152226 www.xdcam-user.com Facebook: Alister Ch

Hi again Alfonso. Sony’s logic when designing their cameras and determining base ISO appears to be based on finding the sensors clip point and working down from there. So where you have a 460% curve s

The base ISO’s for S-Cinetone on the FX9 are 320 and 1600. This is of course also 0dB. 0dB is virtually always the native ISO, so to discover the cameras native ISO if it has a dB mode, switch to dB a

I’m curios Alfonso as to why the S-Cinetone tests were all done with +7dB of gain added? My own testing indicates that adding gain to the S-Cinetone curve reduces the highlight range, results in more

Sorry all. After writing my reply re lights I realised that what I was looking at was two images one above the other, not a single image. Doh. So ignore my comments about lights. I’m not sure the fram

To me this looks like a problem with lights where the cmos sensor is operating faster than the lights are cycling. Try again with daylight or other lights with high speed ballast suitable for high fra

It certainly has some interesting characteristics. There is a lot of noise in the red channel. I’m with Colin in so much as if the white pixels are totally saturated then they can no longer discern br

I’m all for set standards, but the standards should refelect real world application. We are very good in this industry of creating standards that don’t reflect the real world and the way the majority

Perfect Master for whom? I believe this approach is fundamentally flawed as this is not what the most important people, our audience, will see. We don’t make content to satisfy the small numbers that

While I agree that there is a disconnect between the way productions are graded in very dark, controlled environments compared to how streamed movies and drama or other TV shows (as opposed to theatri

Pawel: According to the Oxford English Dictionary: Luminance - the intensity of light emitted from a surface per unit area in a given direction or the component of a television signal which carries in

If you have, say 1 x R, 1 x B and 2 x W (one red, one blue and two white) colour samples in your 2 x 2 bucket, you cannot determine the Green colour sample properly. I’m sorry but his has me confused.

Isn’t this just the difference between GB and GiB where an SSD with 512GB of nand will actually only ever give 476.8 GiB of storage? Alister Chapman DoP - Stereographer alister1@... UK Mob

There’s always the good old DSC labs Cambelles. Quite useful for skin tone comparisons but as it’s a printed chart doesn’t have the textures or contrast, in particular specular highlights, typical of

Don’t forget that The FS7/FS5 etc can now record ProRes Raw via a Shogun, CDNG is not the only choice. A very nice format that gives a very compact and easy to work with 12 bit raw file. At the moment

And you want the manufacturers to make TV’s that then meet the full standard rather than just various limited parts of it. Alister Chapman DoP - Stereographer alister1@... UK Mobile +44 77

On 24 Feb 2019, at 07:06, Geoff Boyle <geoff@...> wrote: It doesn’t matter what people set their home TV’s to Alister, what matters is what the standard is for grading. We are not judge