The differences should look pretty dramatic unless they were re-balanced at some point. There’s no way a white sheet actually turns out pure white when the light source is 4852K and the camera is 5600K, even if the CRI is 100.
No, of course not.
It’s just kind of a recurring topic with a long history of debate. Some people insist CRI can only be seen in person, others insist it can be seen even after passing through a camera, a 3-channel image file, the internet, and a 3-channel screen.
Me, I think CRI is pretty noticeable in person but basically impossible to represent accurately onscreen.
Er, unless a spectrometer is used, I mean. That allows us to get around the 3-channel limit.
That’s exactly what I said in the beginning of the quiz. I was kind of surprised the picture showed the real highest CRI. Because to me it’s the tint that made it stands out, not the color vividness. Only #1 pic easy to guess, the rest are near identical except for the tint. Yes, all shot in 5600K WB. The information can be found in the EXIF RAW files like this:
JFIFVersion - 1.02
X-Resolution - 1 dpi
Y-Resolution - 1 dpi
Image Description - OLYMPUS DIGITAL CAMERA
Make - OLYMPUS IMAGING CORP.
Orientation - Horizontal (normal)
Software - ACDSee Ultimate 8
Date and Time (Modified) - 2019:01:09 22:49:24
YCbCr Positioning - Centered
ISO Speed - 200
Sensitivity Type - Standard Output Sensitivity
Exif Version - 0230
Date and Time (Original) - 2019:01:09 22:27:34
Date and Time (Digitized) - 2019:01:09 22:27:34
Exposure Bias - 0 EV
Max Aperture Value - 3.5
Subject Distance - 0.24 m
Metering Mode - Multi-segment
Light Source - Other
Sub Sec Time - 523
Flashpix Version - 0100
Color Space - sRGB
File Source - Digital Camera
CFAPattern - [Red,Green][Green,Blue]
Custom Rendered - Custom
Exposure Mode - Manual
White Balance - Manual
Digital Zoom Ratio - 1
Scene Capture Type - Standard
Gain Control - Low gain up
Contrast - Low
Saturation - Normal
Sharpness - Soft
Lens Info - 12-50mm f/3.5-6.3
Lens Model - OLYMPUS M.12-50mm F3.5-6.3
Special Mode - Normal, Sequence: 0, Panorama: (none)
Camera ID - OLYMPUS DIGITAL CAMERA
Equipment Version - 0100
Camera Type2 - E-M5
Serial Number - BEL201385
Internal Serial Number - 4138309002686001
Focal Plane Diagonal - 21.6 mm
Body Firmware Version - 2.000
Lens Type - Olympus M.Zuiko Digital ED 12-50mm F3.5-6.3 EZ
Lens Serial Number - ABP383943
Lens Model - OLYMPUS M.12-50mm F3.5-6.3
Lens Firmware Version - 1.102
Max Aperture At Min Focal - 3.5
Max Aperture At Max Focal - 6.3
Min Focal Length - 12
Max Focal Length - 50
Max Aperture - 6.2
Lens Properties - 0xc140
Extender - None
Extender Firmware Version - 0
Flash Type - None
Flash Model - None
Flash Firmware Version - 0
Camera Settings Version - 0100
Preview Image Valid - Yes
Preview Image Start - 49801
Preview Image Length - 804837
Exposure Mode - Manual
AELock - Off
Metering Mode - ESP
Exposure Shift - 0
Macro Mode - Off
Focus Mode - MF; MF
Focus Process - AF Not Used; 0
AFSearch - Not Ready
AFAreas - none
AFPoint Selected - undef undef undef undef
AFFine Tune - Off
AFFine Tune Adj - 0 0 0
Flash Mode - Fill-in
Flash Exposure Comp - 0
Flash Remote Control - Off
Flash Control Mode - Off; 0; 0; 0
Flash Intensity - undef undef undef undef
Manual Flash Strength - undef undef undef undef
White Balance2 - Custom WB 5400K
White Balance Temperature - 5600
White Balance Bracket - 0 0
Custom Saturation - 0 (min –5, max 5)
Modified Saturation - Off
Contrast Setting - –1 (min –5, max 5)
Sharpness Setting - –1 (min –5, max 5)
Color Space - sRGB
Scene Mode - Standard
Noise Reduction - (none)
Distortion Correction - Off
Shading Compensation - Off
Gradation - High Key; User-Selected
Picture Mode - Muted; 2
Picture Mode Saturation - 0 (min –2, max 2)
Picture Mode Contrast - 0 (min –2, max 2)
Picture Mode Sharpness - 0 (min –2, max 2)
Picture Mode BWFilter - n/a
Picture Mode Tone - n/a
Noise Filter - Off
Art Filter - Off; 0; 0; 0
Picture Mode Effect - Standard
Tone Level - –31999; Highlights 0; –7; 7; –31998; Shadows 0; –7; 7; 0; 0; 0; 0
Art Filter Effect - Off; 0; 0; 0; No Effect; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0
Drive Mode - Single Shot
Panorama Mode - Off
Image Stabilization - On, Mode 1
Manometer Pressure - 0 kPa
Manometer Reading - 0 m, 0 ft
Extended WBDetect - Off
Raw Dev Version - 0100
Raw Dev Exposure Bias Value - 0
Raw Dev White Balance Value - 0
Raw Dev WBFine Adjustment - 0
Raw Dev Gray Point - 0 0 0
Raw Dev Saturation Emphasis - 0 0 0
Raw Dev Memory Color Emphasis - 0
Raw Dev Contrast Value - 0 0 0
Raw Dev Sharpness Value - 0 0 0
Raw Dev Color Space - sRGB
Raw Dev Engine - High Speed
Raw Dev Noise Reduction - (none)
Raw Dev Edit Status - Original
Raw Dev Settings - (none)
Image Processing Version - 0112
WB_ RBLevels - 256 256 256 256
WB_ RBLevels3000 K - 158 456 256 256
WB_ RBLevels3300 K - 188 362 256 256
WB_ RBLevels3600 K - 200 332 256 256
WB_ RBLevels3900 K - 210 308 256 256
WB_ RBLevels4000 K - 250 360 256 256
WB_ RBLevels4300 K - 226 298 256 256
WB_ RBLevels4500 K - 240 298 256 256
WB_ RBLevels4800 K - 242 274 256 256
WB_ RBLevels5300 K - 256 256 256 256
WB_ RBLevels6000 K - 280 230 256 256
WB_ RBLevels6600 K - 288 242 256 256
WB_ RBLevels7500 K - 304 200 256 256
WB_ RBLevels CWB1 - 200 400 256 256
WB_ RBLevels CWB2 - 248 294 256 256
WB_ RBLevels CWB3 - 196 218 256 256
WB_ RBLevels CWB4 - 196 218 256 256
Color Matrix - 392 –108 –28 –60 372 –56 6 –104 354
Black Level2 - 0 0 0 0
Gain Base - 256
Valid Bits - 12 0
Crop Left - 8 0
Crop Top - 8 0
Crop Width - 4608
Crop Height - 3456
Sensor Calibration - 3706 256
Noise Reduction2 - (none)
Distortion Correction2 - Off
Shading Compensation2 - Off
Multiple Exposure Mode - On (2 frames); 1
Aspect Ratio - 4:3
Aspect Frame - 0 0 4607 3455
Faces Detected - 0 0 0
Face Detect Area - (Binary data 383 bytes, use -b option to extract)
Max Faces - 8 8 0
Face Detect Frame Size - 0 0 0 0 0 0
Face Detect Frame Crop - 0 0 0 0 0 0 0 0 0 0 0 0
Focus Info Version - 0100
Scene Detect - 0
Zoom Step Count - 27
Focus Step Count - 4335
Focus Step Infinity - 0
Focus Step Near - 0
Focus Distance - 0.24 m
AFPoint - Left (or n/a)
External Flash - Off
External Flash Bounce - Bounce or Off
External Flash Zoom - 0.9310298102
Internal Flash - Off
Manual Flash - Off
Macro LED - Off
Sensor Temperature - 43 C
Compression - JPEG (old-style)
Thumbnail Offset - 11383
Thumbnail Length - 8564
Camera ID - 72157629249027061
Camera Type - Mirrorless Camera
