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"2015-05-15T16:34:48+00:00" }, { "id": "01a0d31e-aec1-7188-8f37-1fca6f3726af", "title": "Engineering Dynamic Range in Photography", "url": "https://www.strollswithmydog.com/engineering-dynamic-range-photography/", "published_at": "2015-05-13T09:53:46+00:00" }, { "id": "01a0d31e-aec1-7188-8f37-1fca6fa178fd", "title": "Downsizing Algorithms: Effects on Resolution", "url": "https://www.strollswithmydog.com/downsizing-algorithms-effects-on-resolution/", "published_at": "2015-04-08T15:48:51+00:00" }, { "id": "01a0d31e-aec1-7188-8f37-1fca707a32d9", "title": "Raw Converter Sharpening with Sliders at Zero?", "url": "https://www.strollswithmydog.com/raw-converter-sharpening-with-sliders-at-zero/", "published_at": "2015-04-07T15:16:46+00:00" }, { "id": "01a0d31e-aec1-7188-8f37-1fca71212654", "title": "Are micro Four Thirds Lenses Typically Twice as ‘Sharp’ as Full Frame’s?", "url": "https://www.strollswithmydog.com/are-micro-four-thirds-lenses-twice-as-sharp-full-frame/", "published_at": "2015-03-30T09:15:27+00:00" }, { "id": "01a0d31e-aec1-7188-8f37-1fca7123b7b3", "title": "Determining Sensor IQ Metrics: RN, FWC, PRNU, DR, gain – 2", "url": "https://www.strollswithmydog.com/determining-sensor-iq-metrics-rn-fwc-prnu-dr-gain-2/", "published_at": "2015-03-06T15:50:54+00:00" }, { "id": "01a0d31e-aec1-7188-8f37-1fca71ddcd69", "title": "Determining Sensor IQ Metrics: RN, FWC, PRNU, DR, gain – 1", "url": "https://www.strollswithmydog.com/determining-sensor-iq-metrics-rn-fwc-prnu-gain/", "published_at": "2015-03-05T22:13:48+00:00" }, { "id": "01a0d31e-aec1-7188-8f37-1fca71e59493", "title": "Sensor IQ’s Simple Model", "url": "https://www.strollswithmydog.com/digital-sensor-iq-model/", "published_at": "2015-03-04T21:33:13+00:00" }, { "id": "01a0d31e-aec1-7188-8f37-1fca72e15733", "title": "MTF Mapper vs sfrmat3", "url": "https://www.strollswithmydog.com/mtf-mapper-vs-sfrmat3/", "published_at": "2015-02-13T15:50:43+00:00" }, { "id": "01a0d31e-aec1-7188-8f37-1fca733906cf", "title": "Can MTF50 be Trusted?", "url": "https://www.strollswithmydog.com/mtf50-trusted/", "published_at": "2015-02-10T11:09:19+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-068015ef0d4a", "title": "Olympus E-M5 II High-Res 64MP Shot Mode", "url": "https://www.strollswithmydog.com/olympus-e-m5-ii-high-res-40mp-shot-mode/", "published_at": "2015-02-06T18:54:20+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-06801630cd4b", "title": "Equivalence in Pictures: Sharpness/Spatial Resolution", "url": "https://www.strollswithmydog.com/equivalence-sharpness-spatial-resolution/", "published_at": "2015-02-04T16:44:47+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-0680167adf50", "title": "Equivalence in Pictures: Focal Length, f-number, diffraction, DOF", "url": "https://www.strollswithmydog.com/equivalence-focal-length-fnumber-diffraction/", "published_at": "2015-01-31T10:33:55+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-06801687d2ef", "title": "The Units of Spatial Resolution", "url": "https://www.strollswithmydog.com/units-spatial-resolution/", "published_at": "2015-01-23T11:09:52+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-06801702686a", "title": "How to Measure the SNR Performance of Your Digital Camera", "url": "https://www.strollswithmydog.com/measure-snr-performance-digital-camera/", "published_at": "2015-01-22T17:22:09+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-068017d38cb2", "title": "Comparing Sensor SNR", "url": "https://www.strollswithmydog.com/comparing-sensor-snr/", "published_at": "2014-10-11T14:09:02+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-0680189276cb", "title": "SNR Curves and IQ in Digital Cameras", "url": "https://www.strollswithmydog.com/snr-curves-and-iq-in-digital-cameras/", "published_at": "2014-10-08T16:58:59+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-068019714ce3", "title": "The Difference between Peak and Effective Quantum Efficiency", "url": "https://www.strollswithmydog.com/the-difference-between-peak-and-effective-quantum-efficiency/", "published_at": "2014-10-06T14:10:23+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-068019ae96e3", "title": "Equivalence and Equivalent Image Quality: Signal", "url": "https://www.strollswithmydog.com/equivalence-and-equivalent-image-quality-signal/", "published_at": "2014-10-04T14:42:02+00:00" }, { "id": "01a0d31e-f66f-7193-8a21-06801a29e627", "title": "How to Get MTF Performance Curves for Your Camera and Lens", "url": "https://www.strollswithmydog.com/how-to-get-mtf-curves-for-your-camera-and-lens/", "published_at": "2014-10-03T08:47:44+00:00" }, { "id": "01a0d31f-2626-712a-ae12-7c96fc191ea7", "title": "The Slanted Edge Method", "url": "https://www.strollswithmydog.com/the-slanted-edge-method/", "published_at": "2014-10-02T16:04:52+00:00" }, { "id": "01a0d31f-2626-712a-ae12-7c96fc2f7b6f", "title": "Why Raw Sharpness IQ Measurements Are Better", "url": "https://www.strollswithmydog.com/why-raw-sharpness-iq-measurements-are-best/", "published_at": "2014-10-02T08:28:01+00:00" }, { "id": "01a0d31f-2626-712a-ae12-7c96fd12bb7d", "title": "How Sharp are my Camera and Lens?", "url": "https://www.strollswithmydog.com/how-sharp-camera-lens/", "published_at": "2014-10-01T20:48:49+00:00" }, { "id": "01a0d31f-2626-712a-ae12-7c96fd23f1c6", "title": "What is the Effective Quantum Efficiency of my Sensor?", "url": "https://www.strollswithmydog.com/effective-quantum-efficiency-of-sensor/", "published_at": "2014-09-23T21:59:46+00:00" }, { "id": "01a0d31f-2626-712a-ae12-7c96fd4a51a2", "title": "I See Banding in the Sky. Is my Camera Faulty?", "url": "https://www.strollswithmydog.com/i-see-banding-in-the-sky-is-my-camera-faulty/", "published_at": "2014-09-22T21:02:03+00:00" }, { "id": "01a0d31f-2626-712a-ae12-7c96fd6b0a28", "title": "How Many Photons on a Pixel at a Given Exposure", "url": "https://www.strollswithmydog.com/how-many-photons-on-pixel-at-given-exposure/", "published_at": "2014-09-22T14:44:29+00:00" }, { "id": "01a0d31f-2626-712a-ae12-7c96fe39d15e", "title": "Photons Emitted by Light Source", "url": "https://www.strollswithmydog.com/photons-emitted-by-light-source/", "published_at": "2014-09-16T16:28:28+00:00" }, { "id": "01a0d31f-2626-712a-ae12-7c96fe46df4a", "title": "Converting Radiometric to Photometric Units", "url": "https://www.strollswithmydog.com/converting-radiometric-to-photometric-units/", "published_at": "2014-09-16T08:53:37+00:00" }, { "id": "01a0d31f-2627-7339-9fa3-855165a7cdac", "title": "How Many Photons on a Pixel", "url": "https://www.strollswithmydog.com/photons-on-a-pixel/", "published_at": "2014-09-10T15:06:07+00:00" }, { "id": "01a0d31f-2627-7339-9fa3-855165d433f2", "title": "Nikon CFA Spectral Power Distribution", "url": "https://www.strollswithmydog.com/bayer-cfa-spectral-power-distribution/", "published_at": "2014-09-09T18:13:45+00:00" } ] posts Claim your blog

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2026

The Effect of Sampling on Image Resolution original ↗

6 Mar 2026

2025

Sampling in Imaging original ↗

15 Oct 2025

Minimalist ESF, LSF, MTF by Monotonic Regression original ↗

6 Jan 2025

2024

What is Resolution?original ↗

8 May 2024

2023

Introduction to Texture MTF original ↗

19 Nov 2023

Photons, Shot Noise and Poisson Processes original ↗

17 May 2023

Fourier Optics and the Complex Pupil Function original ↗

13 Apr 2023

An Introduction to Pupil Aberrations original ↗

17 Mar 2023

Pupils and Apertures original ↗

15 Mar 2023

Angles and the Camera Equation original ↗

26 Feb 2023

2022

Off Balance original ↗

16 May 2022

A Question of Balance original ↗

9 May 2022

White Point, CCT and Tint original ↗

9 May 2022

Linear Color Transforms original ↗

30 Apr 2022

2021

Cone Fundamentals & the LMS Color Space original ↗

13 Dec 2021

Connecting Photographic Raw Data to Tristimulus Color Science original ↗

9 Dec 2021

The Physical Units of Raw Data original ↗

13 Nov 2021

The Spectral Response of Digital Cameras original ↗

10 Nov 2021

2020

Pi HQ Cam Sensor Performance original ↗

17 May 2020

Opening Raspberry Pi High Quality Camera Raw Files original ↗

15 May 2020

Diffracted DOF Aperture Guides: 24-35mm original ↗

9 Apr 2020

DOF and Diffraction: 24mm Guidelines original ↗

29 Mar 2020

DOF and Diffraction: Setup original ↗

17 Mar 2020

DOF and Diffraction: Image Side original ↗

11 Mar 2020

DOF and Diffraction: Object Side original ↗

10 Mar 2020

The Nikon Z7’s Insane Sharpness original ↗

27 Jan 2020

Canon’s High-Res Optical Low Pass Filter original ↗

15 Jan 2020

2019

The HV Spectrogram original ↗

16 Nov 2019

The Richardson-Lucy Algorithm original ↗

23 May 2019

Elements of Richardson-Lucy Deconvolution original ↗

3 May 2019

Deconvolution by Naive Division original ↗

12 Apr 2019

Capture Sharpening: Estimating Lens PSF original ↗

26 Feb 2019

2018

Phone Camera Color ‘Accuracy’original ↗

19 Apr 2018

A Just Noticeable Color Difference original ↗

25 Jan 2018

The Perfect Color Filter Array original ↗

20 Jan 2018

Phase One IQ3 100MP Trichromatic vs Standard Back Linear Color, Part III original ↗

11 Jan 2018

Phase One IQ3 100MP Trichromatic vs Standard Back Linear Color, Part II original ↗

10 Jan 2018

Phase One IQ3 100MP Trichromatic vs Standard Back Linear Color, Part I original ↗

8 Jan 2018

2017

Bayer CFA Effect on Sharpness original ↗

10 Sept 2017

Wavefront to PSF to MTF: Physical Units original ↗

19 Feb 2017

Aberrated Wave to Image Intensity to MTF original ↗

18 Feb 2017

2016

Linear Color: Applying the Forward Matrix original ↗

12 Dec 2016

Color: Determining a Forward Matrix for Your Camera original ↗

7 Dec 2016

Color: From Object to Eye original ↗

4 Dec 2016

An Introduction to Color in Digital Cameras original ↗

27 Nov 2016

How Is a Raw Image Rendered?original ↗

21 Oct 2016

Taking the Sharpness Model for a Spin – II original ↗

5 Oct 2016

Taking the Sharpness Model for a Spin original ↗

4 Oct 2016

A Simple Model for Sharpness in Digital Cameras – Polychromatic Light original ↗

21 Sept 2016

A Simple Model for Sharpness in Digital Cameras – Spherical Aberrations original ↗

18 Sept 2016

A Simple Model for Sharpness in Digital Cameras – Defocus original ↗

13 Sept 2016

A Simple Model for Sharpness in Digital Cameras – AA original ↗

9 Sept 2016

The Units of Discrete Fourier Transforms original ↗

16 May 2016

A Simple Model for Sharpness in Digital Cameras – Sampling & Aliasing original ↗

12 May 2016

A Simple Model for Sharpness in Digital Cameras – Diffraction and Pixel Aperture original ↗

11 May 2016

A Simple Model for Sharpness in Digital Cameras – I original ↗

9 May 2016

Chromatic Aberrations MTF Mapped original ↗

19 Mar 2016

System MTF from Bayer Sensors original ↗

16 Mar 2016

Combining Bayer CFA Modulation Transfer Functions – I original ↗

14 Mar 2016

Linearity in the Frequency Domain original ↗

12 Mar 2016

Sub Bit Signal original ↗

19 Jan 2016

2015

Sub LSB Quantization original ↗

8 Oct 2015

Photographic Sensor Simulation original ↗

22 Sept 2015

Smooth Gradients and the Weber-Fechner Fraction original ↗

15 Sept 2015

Information Transfer: Non ISO-Invariant Case original ↗

15 Jun 2015

Image Quality: Raising ISO vs Pushing in Conversion original ↗

11 Jun 2015

The Difference Between Data and Information original ↗

10 Jun 2015

Information Transfer – The ISO Invariant Case original ↗

8 Jun 2015

Information Theory for Photographers original ↗

21 May 2015

How Many Bits to Fully Encode My Image original ↗

19 May 2015

Dynamic Range and Bit Depth original ↗

15 May 2015

Engineering Dynamic Range in Photography original ↗

13 May 2015

Downsizing Algorithms: Effects on Resolution original ↗

8 Apr 2015

Raw Converter Sharpening with Sliders at Zero?original ↗

7 Apr 2015

Are micro Four Thirds Lenses Typically Twice as ‘Sharp’ as Full Frame’s?original ↗

30 Mar 2015

Determining Sensor IQ Metrics: RN, FWC, PRNU, DR, gain – 2 original ↗

6 Mar 2015

Determining Sensor IQ Metrics: RN, FWC, PRNU, DR, gain – 1 original ↗

5 Mar 2015

Sensor IQ’s Simple Model original ↗

4 Mar 2015

MTF Mapper vs sfrmat3 original ↗

13 Feb 2015

Can MTF50 be Trusted?original ↗

10 Feb 2015

Olympus E-M5 II High-Res 64MP Shot Mode original ↗

6 Feb 2015

Equivalence in Pictures: Sharpness/Spatial Resolution original ↗

4 Feb 2015

Equivalence in Pictures: Focal Length, f-number, diffraction, DOF original ↗

31 Jan 2015

The Units of Spatial Resolution original ↗

23 Jan 2015

How to Measure the SNR Performance of Your Digital Camera original ↗

22 Jan 2015

2014

Comparing Sensor SNR original ↗

11 Oct 2014

SNR Curves and IQ in Digital Cameras original ↗

8 Oct 2014

The Difference between Peak and Effective Quantum Efficiency original ↗

6 Oct 2014

Equivalence and Equivalent Image Quality: Signal original ↗

4 Oct 2014

How to Get MTF Performance Curves for Your Camera and Lens original ↗

3 Oct 2014

The Slanted Edge Method original ↗

2 Oct 2014

Why Raw Sharpness IQ Measurements Are Better original ↗

2 Oct 2014

How Sharp are my Camera and Lens?original ↗

1 Oct 2014

What is the Effective Quantum Efficiency of my Sensor?original ↗

23 Sept 2014

I See Banding in the Sky. Is my Camera Faulty?original ↗

22 Sept 2014

How Many Photons on a Pixel at a Given Exposure original ↗

22 Sept 2014

Photons Emitted by Light Source original ↗

16 Sept 2014

Converting Radiometric to Photometric Units original ↗

16 Sept 2014

How Many Photons on a Pixel original ↗

10 Sept 2014

Nikon CFA Spectral Power Distribution original ↗

9 Sept 2014