Category Archives: Photography

New canon lens

I had a couple of situations which made me add a couple of Canon lens to my Amazon wishlist.

After trying to photograph the Milky Way, I was reading that I needed a faster lens then the 18-55 mm f/3.5-5.6 that I was using.  So, I found a 24 mm f/2.8 that I thought would be something to try.

Additionally, for the sunsets I was starting to take, I wanted a larger field of view.  So, I I found the 10-18mm f/4.5-5.6 lens


I took a series of pictures with the Canon a tripod to look at the different field of views.

55mm using 18-55mm


18mm using 18-55mm


22mm using 24mm


18mm using 10-18mm


10mm using 10-18mm



I was reading about time lapse photography and there was a reference to the histogram.  I had heard the term before and knew it related to a graph of some type but really didn’t know what it was.  So, I started to do some research.

Basically, it is a type of bar graph that displays exposure of the pixels in your image, i.e the brightness of an image.  Dark tones are displayed on the left and moves to light tones on the left.  Typically, a good exposure would have more data in the middle then the edges but this might not apply to sunset images.  An underexposed image would have a spike on the left side (dark side).  An overexposed image would have a spike on the right side (light side).  A well-exposed image will reach from both sides.  Spikes can also represent clipping of detail in the images

But, this info might not apply to a sunset since it will have spikes and be slanted to the left.