Category: photography
StudioBinder.com – Photography basics: What is Dynamic Range in Photography
https://www.studiobinder.com/blog/what-is-dynamic-range-photography/
https://www.hdrsoft.com/resources/dri.html#bit-depth
The dynamic range is a ratio between the maximum and minimum values of a physical measurement. Its definition depends on what the dynamic range refers to.
For a scene: Dynamic range is the ratio between the brightest and darkest parts of the scene.
For a camera: Dynamic range is the ratio of saturation to noise. More specifically, the ratio of the intensity that just saturates the camera to the intensity that just lifts the camera response one standard deviation above camera noise.
For a display: Dynamic range is the ratio between the maximum and minimum intensities emitted from the screen.
Paul Debevec, Chloe LeGendre, Lukas Lepicovsky – Jointly Optimizing Color Rendition and In-Camera Backgrounds in an RGB Virtual Production Stage
https://arxiv.org/pdf/2205.12403.pdf
Local copy:
9 Best Hacks to Make a Cinematic Video with Any Camera
https://www.flexclip.com/learn/cinematic-video.html
- Frame Your Shots to Create Depth
- Create Shallow Depth of Field
- Avoid Shaky Footage and Use Flexible Camera Movements
- Properly Use Slow Motion
- Use Cinematic Lighting Techniques
- Apply Color Grading
- Use Cinematic Music and SFX
- Add Cinematic Fonts and Text Effects
- Create the Cinematic Bar at the Top and the Bottom
StereoPhoto Maker – create RGB-Depth images from stereo photos for LookingGlass
Shutter Speed and Rolling Shutter
https://www.studiobinder.com/blog/what-is-rolling-stutter
Rendering rolling shutter in Arnold
Rolling_shutter is used to simulate the type of rolling shutter effect seen in footage shot with digital cameras that use CMOS-based sensors such as Blackmagics, Alexas, REDs, and even iPhones. This method is implemented by rolling (moving) the shutter across the camera area instead of the entire image area all at the same time.
https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_user_guide_ac_cameras_html
Erik Winquist – The Definitive Weta Digital Guide to IBL hdri capture
www.fxguide.com/fxfeatured/the-definitive-weta-digital-guide-to-ibl
Notes:
- Camera type: full frame with exposure bracketing and an 8mm circular fish eye lens.
- Bracketing: 7 exposures at 2 stops increments.
- Tripod: supporting 120 degrees locked offsets
- Camera angle: should point up 7.5 degrees for better sky or upper dome coverage.
- Camera focus: set and tape locked to manual
- Start shooting looking towards the sun direction with and without the ND3 filter; The other angles will not require the ND3 filter.
- Documenting shooting with a slate (measure distance to slate, day, location, camera info, camera temperature, camera position)
K-Lens One – A Light Field Lens that captures RGB + Depth
www.newsshooter.com/2021/10/31/klens-one-a-light-field-lens-that-captures-rgb-depth/
A mirror system (Image Multiplier) in the K|Lens splits the light rays into 9 separate images that are mapped on the camera sensor. All 9 of these images have slightly different perspectives. The best way to picture it is if you imagine using 9 separate cameras in a narrow array at the same time.