User mattdm

8 votes

Accepted

Does adding additional strobes cumulatively add to the flash power?

answered Oct 11, 2011 at 11:59

10 votes

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What is the quantative relation between flash guide number and ISO?

answered Oct 31, 2011 at 19:33

11 votes

How do I calculate the number of stops between two shutter speeds?

answered Oct 11, 2014 at 18:25

6 votes

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Why does EV increase as ISO increases?

answered Jan 10, 2013 at 16:01

4 votes

What is the formula to calculate aperture ("diaphragme" in French)?

answered Mar 12, 2019 at 17:08

35 votes

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How can I extract just the value of a tag without the name using exiftool?

answered Nov 13, 2014 at 22:51

5 votes

Why can't one calibrate a monitor with a DSLR & a color chart?

answered Jul 6, 2014 at 2:57

5 votes

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Why are blown-out highights pink instead of white in Darktable?

answered Aug 17, 2018 at 16:52

223 votes

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What does an unprocessed RAW file look like?

answered Feb 21, 2019 at 2:49

7 votes

Is "Date Taken" Exif data possible on .PNG file, and is it possible to copy "Date Modified" to "Date Taken"?

answered Jun 12, 2015 at 19:34

37 votes

Most Common Aspect Ratio?

answered Jan 21, 2013 at 6:02

6 votes

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How can I edit this RAW image to get the much superior JPG image?

answered Apr 21, 2020 at 0:43

5 votes

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When the object is 50 meters away, how do you know that the camera is focused at a distance of 50 meters?

answered Apr 16, 2020 at 6:17

3 votes

Camera for teenager

answered Feb 22, 2020 at 17:37

76 votes

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Is there a free program to (batch) change photo file's date to match EXIF?

answered Sep 14, 2012 at 14:23

4 votes

What are photographic "typologies"?

answered Sep 20, 2018 at 21:45

5 votes

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How to decide whether a portrait should be in color or black and white?

answered Apr 23, 2017 at 16:26

16 votes

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As a blind person, how can I better understand how wide or narrow a field of view is?

answered Jan 11, 2020 at 6:00

2 votes

Second lens after Nikon 16-80 mm: Nikon 50 mm f/1.8g or other?

answered Jan 11, 2020 at 3:01

8 votes

Accepted

Is there a way to change the aspect ratio of a DNG file?

answered Jul 3, 2019 at 18:10

1 vote

Why does aperture change when I zoom my lens even in manual mode?

answered Jan 5, 2020 at 19:01

1 vote

How can I set the two-second delay mode to persist for more than one shot on my Nikon DSLR?

answered Dec 29, 2019 at 17:02

1 vote

photon counting with a DSLR

answered Dec 22, 2019 at 15:44

16 votes

Accepted

Can a smaller sensor's "crop factor" be used to calculate the exact increase in depth of field?

answered Mar 25, 2011 at 2:22

15 votes

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How sharp are RAW photos before processing?

answered Feb 20, 2019 at 21:05

4 votes

How to calculate a sensor size when all I know is focal length and resolution?

answered Dec 17, 2019 at 2:36

2 votes

Accepted

In Lightroom CC, Why aren't my changes saved in the underlying file?

answered Dec 17, 2019 at 2:08

0 votes

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Blur image with a 1/2" lens on a 1/3" sensor

answered Dec 9, 2019 at 16:42

8 votes

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What makes RF lenses better than Canon's EF lenses?

answered Jun 7, 2019 at 11:06

2 votes

Why is the A1 (paper) format 594×841 and not 594×840?

answered Nov 30, 2019 at 13:14

Stack Exchange Network

1,714 Answers

Does adding additional strobes cumulatively add to the flash power?

What is the quantative relation between flash guide number and ISO?

How do I calculate the number of stops between two shutter speeds?

Why does EV increase as ISO increases?

What is the formula to calculate aperture ("diaphragme" in French)?

How can I extract just the value of a tag without the name using exiftool?

Why can't one calibrate a monitor with a DSLR & a color chart?

Why are blown-out highights pink instead of white in Darktable?

What does an unprocessed RAW file look like?

Is "Date Taken" Exif data possible on .PNG file, and is it possible to copy "Date Modified" to "Date Taken"?

Most Common Aspect Ratio?

How can I edit this RAW image to get the much superior JPG image?

When the object is 50 meters away, how do you know that the camera is focused at a distance of 50 meters?

Camera for teenager

Is there a free program to (batch) change photo file's date to match EXIF?

What are photographic "typologies"?

How to decide whether a portrait should be in color or black and white?

As a blind person, how can I better understand how wide or narrow a field of view is?

Second lens after Nikon 16-80 mm: Nikon 50 mm f/1.8g or other?

Is there a way to change the aspect ratio of a DNG file?

Why does aperture change when I zoom my lens even in manual mode?

How can I set the two-second delay mode to persist for more than one shot on my Nikon DSLR?

photon counting with a DSLR

Can a smaller sensor's "crop factor" be used to calculate the exact increase in depth of field?

How sharp are RAW photos before processing?

How to calculate a sensor size when all I know is focal length and resolution?

In Lightroom CC, Why aren't my changes saved in the underlying file?

Blur image with a 1/2" lens on a 1/3" sensor

What makes RF lenses better than Canon's EF lenses?

Why is the A1 (paper) format 594×841 and not 594×840?