A Ghostly Memory

Bodie, CA AUG 2014
A Ghostly Memory, Bodie CA, AUG 2014.
Click on image to see larger, higher resolution image.

A column of sunlight illuminates the dim kitchen as evening arrives.  The cooking and baking is done.  The kids have been fed.  The table is set.  All is ready for the master of the house to return from his day’s work.   A typical day in Bodie during the late 1800’s and early 1900’s?  Probably.  But now, the counter cleaned and the table prepared goes unused.  They are covered with a thick layer of dust reminiscent of the flour once mixed in the bowl and baked in the tin.  A ghostly memory of a kitchen filled with voices:  laughter, worry, love, turmoil.   How was your day?  Is one of the kids outgrowing his shoes?  Do we have enough food to put up for the winter?   Long ago abandoned, this kitchen, this house, sits as a snapshot, a moment in time representative of joy and struggles of lives once lived.

Larry

This and other images are available for sale at my website: www.earthwatcher.us of by contacting me directly at larry@earthwatcher.us.

A Brief Explanation of Noise

20140816-Bodie-053-Edit-WEB
Night Sky, Bodie CA

Here is a brief explanation about why you get noise on some images, particularly on night shots with long exposures.

Noise is an extraneous electrical signal that is picked up by your camera’s sensor which translates into a pattern of color and graininess on your image.  Look at the image above, you’ll see specs and small streaks of magenta against the dark sky; this is the most common symptom of noise.  Heat is the primary culprit that generates the extraneous electrical signal.

Heat is generated in one of 2 ways: high ISO settings and long exposures.  The pixels on your camera sensor are very tiny.   The longer you hold the shutter open, the more electricity gets fed to your sensor which causes heat to build up in your sensor.   Increasing ISO is like turning up the volume on your radio.  When you turn up the volume on your radio, you are amplifying or increasing the strength of the signal to your speakers by pumping in more electricity.  Likewise, when you increase ISO, you are increasing the strength of the signal to your camera’s sensor.  The more electricity you feed it, the more the heat builds up and the more extraneous electric signals are picked up.

Each camera model has different noise characteristics.  Camera manufacturers are always trying to improve their noise reduction.  But, noise is a reality of digital cameras.  If you are planning to photograph night shots, experiment with your camera ahead of time to find your best noise performance so you can judge how to set up your camera when you are shooting for real.

Software such as Photo Ninja, Photoshop and Adobe Lightroom have ways to reduce noise.  They work well but need to be used in moderation.  As you apply more noise reduction the more you loose sharpness in your finished image.