Comparing DSLR and iPhone for bird photography

Barrow's goldeneye shot last year (left) and this year (right) in the same place with different cameras.

There is much to be said about the capabilities of cell phone cameras; their popularity certainly supports the idea that they are both convenient and effective.  However, they cannot match DSLR and mirrorless cameras in a few areas.  These include high ISO exposures, exposures with flash, and long lens shots that you may find in sports and wildlife photography.

My sport-shooting days are over as my children are grown, but I still do a lot of wildlife photography (if you look at my blog history, you will see what I mean).   Last year I got a great shot of a Barrow's goldeneye duck (click here to see the post).  This year I saw another male in the same pond and it was about in the same position.  I took out my iPhone 15 Pro and zoomed in to its maximum magnification at 15x.  Although it looked OK when viewed as a thumbnail, it was lacking details and the same colour sheen found in last year's shot.

There are a few reasons for this, most of them involve the differences between the two cameras.  I will explore them below.

  • The large sensor allows for clearer images (less noise) for the DSLR I used.  The ISO was 100 for the shot while the iPhone used an ISO of 25.  The low aperture allowed lots of light in the camera and so a very low ISO was possible.  Smartphones use notoriously small sensors that function best in good lighting and struggle at higher ISO values.
  • The DSLR shot was done in RAW format which meant no artifacts while the cell phone shot was done as a jpeg.  I could have switched to HVIF format (no compression artifacts) or used the RAW format available to me for the Pro series.
  • The D500 I used has a 20 mp sensor while the cell phone produces a 12 mp image.  Now, it is possible to create a 48 mp image from the iPhone, but only on the 1x camera.  The smaller image means less ability to crop and still retain details.
  • You can buy telephoto add-on lenses for cell phone cameras, but they do not speak to the quality, speed, and accuracy that a good DSLR lens does.  Of course, they also don't cost thousands of dollars.  I have used other peripheral lenses for smartphones, but have not actually used a telephoto, so I can't speak from experience.
I do use my smart phone camera for certain shots and find it does a very good job.  It does not match the capacity of DSLR or mirrorless equipment in certain areas, although I am certain someone is working on that.  I imagine I will eventually be more impressed by their ability.  But not today.

Thanks for reading.

Eric Svendsen     www.ericspix.com

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