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This video is a deep case study on the new Leica Q3 and its 60MP BSI sensor. Topics covered are dynamic range, pixel binning at M-DNG and S-DNG resolutions, Signal-to-Noise Ratio (SNR), Peak Signal-to-Noise Ratio, Mean Square Error (MSE) of difference images of the same scene but shot with high and low ISO values and the Structural Similarity Index (SSIM) of such difference images. The video also contains test shootings with high ISO values (up to ISO 100'000) and shows that such images are still usable for social media. The last topic is hand-held shooting based on Optical Image Stabilisation (OIS) and how effective the OIS in the Leica Q3 works.
Content:
00:00 Introduction
01:38 Empirically demonstrating ISO-invariance of the Q3 sensor
06:47 Pixel binning for M-DNG (36MP) and S-DNG (18MP) resolutions
07:46 Educational session: image noise and Signal-to-Noise Ratio (SNR)
13:47 Non-simplified scientific approaches to SNR are more complex
15:16 SNR techniques applied to Leica Q3 images
17:41 Leica Q3 pixel binning, dynamic range and Signal-to-Noise
21:04 Educational session: Peak Signal-to-Noise Ratio (PSNR)
26:08 Example: difference image and its PSNR of two Leica Q3 images
28:11 PSNR techniques applied to Leica Q3 images
33:11 Educational session: Structural Similarity Index (SSIM)
36:17 SSIM techniques applied to Leica Q3 images
39:43 Conclusions on dynamic range and an important caveat
42:41 Shooting with ISO values of 12’500, 25’000 and 100’000
49:53 Hand-held shooting with the Leica Q based on improved OIS
Related videos on my channel:
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Here is the link to the live streaming from the Leica Store in Nuremberg (German language) on the ISO-invariance of the Leica M11:
Online Talk im Leica Store Nürnberg - ISO Invariante Sensoren:
• Online Talk im Leica S...
Music (if applicable):
epidemicsound.com (licensed)
storyblocks.com (licensed)
motionarray.com (licensed)
#Leica #LeicaQ3