Email:
brqyvn@gmail.com
Hi Photographer friends,
We are currently in San Diego with our RV setup. We will be in the area for one Month as there are so much to see here. We drove to Ocean Beach this past weekend and I brought one lens only. I brought the SMC FA 50mm f/1.4.
I wanted to get as much
bokeh as possible on some images, so image 1 and 2 were taken at the f/1.4 aperture. The K-50 did a good job as I can't see any differences between it and the K-5 images. The rest of the images just show the K-50 rendition.
v Choosing a large aperture
limits the depth of field, making your subject stand out with a blurry
background and foreground (bokeh). This is very useful for portraits. This
depth of field is proportionally accentuated with telephoto lenses. However, it
may require a fast shutter speed or a slower ISO.
 |
| This nice dog is a working dog and was patiently waiting for his Master. |
 |
| I don't know what kind of bird this is, but it was watching our every move at this outside Cafe, to pick up the left over. Notice his one leg partially cut-off? |
 |
| This surfer chopped VW bus has certainly seen better days. |
 |
| Sand and Water pattern. |
 |
Forty Something Desoto wagon...
|
I will have a lot more pictures of the San Diego area in the weeks to come.
Apeture scale explained
The aperture, being the lens diaghphram
opening, lets more or less light pass through the lens. The f/number (aperture opening)
is proportional to the ratio between the lens focal length and aperture
diameter, which is proportional to the square root of the aperture area. Big lingo,
but what does it mean for you? Well, lenses are usually marked with the f/numbers ranging from the largest
aperture to the smallest aperture. For
example, a typical lens could have an
aperture range of f/1.4 to f/32. In this example, the largest aperture would
be f/1.4 while the smallest would be f/32. Have you noticed something a
little surprising here? The larger the number is, the smaller the aperture is. You
need to remember that. Furthermore, each (f-stop) number to the right
lets twice the amount of light in as the (f-stop)
number to its left and each (f-stop) number to the left lets half
the light in as the (f-stop) number
to its right. For example, f/4 lets
twice as much light in as f/5.6 but only one half the light of f/2.8, and so on. One unit of increment
in aperture is called a stop.
To get great Bokeh, use the largest aperture of the lens being used.
Thanks for reading,
Yvon Bourque
