Speaking about the Lubitel166+, tipsters will make your style evolve to a new form of expression and composition. Before speaking about composition, I think it’s better to start from the basic stuff and understand what depth of field is.
In optics, depth of field is the distance between the nearest and farthest points that are in focus in your image, with a specific aperture/shutter speed setting. Even though the point of focus is only one precise distance, the sharpness is gradually reduced on both sides of the focused distance, so that the normal eye cannot really perceive it as a specific point of focus, but as a segment.
According to your aperture/shutter speed setting, this focusing segment could be longer or shorter, with heavy influences on the final result and on your composition.
A LARGE depth of field could be useful if you want to have the entire image that is sharp. But if you want to focus the attention on your subject and add a specific more emphasizing effect on it, it could be useful to focus on the subject and modify the aperture/shutter speed setting, in order to have a SMALL depth of field.
Bokeh stands for the blurred effect (most of the times aesthetically chosen) in areas of an image that are out of focus, thanks to a small depth of field. Generally a good Bokeh is made in order to not distract the viewer’s eye from the main subject of the image, if the photographer thinks that the background (or the “foreground”) could be distracting in the final picture. If the Bokeh effect distracts the viewer, it could mean that it’s not well done.
How to plan a Bokeh effect
Simply you have to know the size of segment that is in focus for each combination of aperture/shutter speed setting, according to:
- mm of your lens;
- size of film (35mm, 120, large format, etc);
Disclaimer: We spoke about philosophy, history (ancestors and birth of the project of the Lubitel 166+),tech specs. Inside all the previous article I left some little, but very important, details that will let you easily interpret the next ones. These articles are meant to be read in series, so don’t lose the opportunity to go and check the previous episodes.
Alessandro Panelli (aka yo.panic or .panic) is a Medicine and Surgery student, a photographer and a writer from Padova (Italy, near Venice). Read more about Alessandro’s work and life in his website or add him on Facebook or Google+.