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mattdm
  • Member for 11 years, 8 months
  • Last seen more than a week ago
6 votes
Accepted

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

5 votes
Accepted

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

3 votes

Camera for teenager

16 votes
Accepted

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

2 votes

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

1 vote

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

1 vote

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

1 vote

photon counting with a DSLR

4 votes

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

2 votes
Accepted

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

0 votes
Accepted

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

2 votes

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

2 votes

How to find out what part of image is less lens-distorted?

8 votes

Why do some DSLRs have ISO less than 100?

32 votes
Accepted

How to spot dust in images quickly while doing a shoot outdoors?

1 vote

How can I work around lack of support for Canon's new CR3 Raw format in the software I use?

5 votes
Accepted

What happens when the shuttercount of my DSLR is too high?

3 votes
Accepted

What is the flash S2 slave mode used for?

7 votes
Accepted

How to speed up Lightroom face detection?

1 vote

Transportable mini-studio and power management

4 votes

Are guide number rules still valid over unusually high distances?

1 vote

How can I make use of a speedlight that does not work with the non-standard hotshoe on lower-end Canon cameras?

5 votes
Accepted

What is the role of Shutter Speed while using a Manual Flash?

0 votes

I bought a yn560 Iv speed light for my canon 2000d but its not working with the camera

49 votes
Accepted

SD Card speed degrading and doesn't work on one of my cameras: can I do something?

1 vote
Accepted

Why aren't multi-aspect sensors commonplace on high-end cameras?

1 vote

How can I compare a few screen's color gamut?

1 vote

Nikon D3500 vs Canon EOS T7

5 votes

Vintage vs modern B&W photography techniques differ in color luminance - what's going on here?

7 votes
Accepted

How do I tell my new Windows 10 PC to import images via SD card or card reader when I insert a card?

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