Dave_J_E

This article by DPR's own Richard Butler might be useful, particularly the section on "ISOs in log mode". As far as I'm aware, there's only one non-linear transfer function applied to the raw data, ...

As I see it, log profiles are used to capture brighter highlights without clipping and to do this, exposure settings such as aperture and shutter speed must be used to reduce the exposure. This is ...

Rod the Imatest measurements are based on slanted edge tests for a combination of lens and sensor. See Jack's reference on this test procedure. The MTF measurements therefore represent the ...

There was a discussion on this sort of thing recently here . Bear in mind that the bit rate is a nominal average setting. You specify the target bit rate and the coding/capture software adjusts the ...

Interesting. Some of these curves are typically used for video which is an area of some vagueness to me. My understanding is that in a video situation, these log based curves would be used instead ...

Hi Ted I believe there are two tone curves at play here, The first is an S shaped TC applied during raw conversion to improve global contrast (linear looks a bit flat), The second is the sRGB tone ...

I think the main limitation with shutter speed using flash with a global shutter (or leaf shutter for that matter) would be flash duration, which depends on the flash "power" setting. I have ...

According to this Fuji White paper , F-Log uses the same color primaries and white point as REC2020. According to this White Paper , D-Log uses a wider color space than Rec2020.

I'm wondering whether these are masked pixels. Sensors typically have a small group of masked pixels that can be used as a black level reference. My Sony sensors have a few columns on the right ...

I use a TT685S on my a7. On the camera, set flash mode to "Fill Flash". It doesn't matter whether electronic first shutter is on or off. On the TT685S, use the "z" button on the far right to toggle ...

Yes MediaInfo should tell you. Look for tags such as Color Primaries, Transfer Characteristics and Matrix Co-efficients. I doubt that it would be sRGB, most likely Rec 709. There's very little ...

Aaron I think it depends on the look you are after. Typically shutter open durations are often set at about half the frame duration which means that for 24fps you would have a shutter speed of ...

It doesn't. If the camera is set to 1920x1080, that's what it will capture. The PAL and NTSC standards were used for analogue TV and about the only parts of the standards of any relevance anymore ...

Hi Tony The Develop Persona in Affinity is the raw processing part of the software. If you open a raw file in Affinity, it will always open up in this persona. If you are using Nikon View, it will ...

This is not necessarily a bad thing to do. The DNG spec allows for the inclusion of a Hue Saturation Value mapping lookup table in a DNG profile which is presumably what the DNG Profile editor ...