Project: getting to know my camera
I like to be organized, so even though I'm familiar with some of the technical terms, I'll still write them down, so whenever I need to, I can come back to this part of my learning log, and review them. So I'll go through the exercises in the course, one by one.
But before that, I'd like to use an image, from an older course that I took some time ago (Fundamentals of Digital Photography). I found the image very useful in explaining what an SLR actually is and how it works basically.
Here it is:
I like to be organized, so even though I'm familiar with some of the technical terms, I'll still write them down, so whenever I need to, I can come back to this part of my learning log, and review them. So I'll go through the exercises in the course, one by one.
But before that, I'd like to use an image, from an older course that I took some time ago (Fundamentals of Digital Photography). I found the image very useful in explaining what an SLR actually is and how it works basically.
Here it is:
The diagram represents a cross section of a basic SLR. The lens is composed of several elements. In this image, the mirror is at a 45-degree angle, causing the light to reflect upward into the camera’s prism which allows the viewer to see the image. When the shutter is pressed, the mirror flips up, out of the way, and the focused image is recorded on the light-sensitive chip.
My camera:
Olympus E-510 – 4/3 system
My lenses:
- Olympus Digital 14 – 42mm 1:3.5 – 5.6
- Olympus Digital 40 – 150mm 1:4 – 5.6
- Olympus Digital 50mm 1:2 MACRO
- Olympus Digital 11 – 22mm 1:2.8 – 3.5
Basics:
1. what the f-stop numbers stand for
(The f-stop number stands for the size of the aperture. The full f-stop numbers are as follows:
f/1 f/1.4 f/2 f/2.8 f/4 f/5.6 f/8 f/11 f/16 f/22 f/32 f/44 f/64)
2. how the lens aperture controls the light
(The aperture refers basically to the amount of light passing through the camera’s lens. The aperture can be adjusted, and that’s done by the diaphragm. If opened wide, it lets in a large stream of light. If opened narrow it lets in a smaller amount of light. Going back to the f-stop numbers, opening up one full f-stop doubles the amount of light entering the camera; closing down one full f-stop cuts the light in half)
3. how the shutter speed controls the light
(The diaphragm can close faster or slower, thus the speed can control the amount of light entering the camera. If a fast shutter speed is used, the exposure time is short, if a slow shutter speed is used, the exposure time is longer, and a larger amount of light will enter the camera.)
Observation: standard focal length for a 4/3 camera – 20–25mm
Exercise: three photos, using three different focal lengths - in my case:
11mm, 50mm, 150mm
(The distance from the eye, at which I have to keep the first photo - taken with the lens at 11mm and printed on an A4 paper (for a comfortable viewing) - is about 30 cm; for the second image is about 60-70 cm, and for the last one, well....about 1.7 m; it seems MY comfortable viewing distance is a bit "further a way" than it should be, guess I'm going "farsighted" :). So...the exercise was good for something :))
My camera:
Olympus E-510 – 4/3 system
My lenses:
- Olympus Digital 14 – 42mm 1:3.5 – 5.6
- Olympus Digital 40 – 150mm 1:4 – 5.6
- Olympus Digital 50mm 1:2 MACRO
- Olympus Digital 11 – 22mm 1:2.8 – 3.5
Basics:
1. what the f-stop numbers stand for
(The f-stop number stands for the size of the aperture. The full f-stop numbers are as follows:
f/1 f/1.4 f/2 f/2.8 f/4 f/5.6 f/8 f/11 f/16 f/22 f/32 f/44 f/64)
2. how the lens aperture controls the light
(The aperture refers basically to the amount of light passing through the camera’s lens. The aperture can be adjusted, and that’s done by the diaphragm. If opened wide, it lets in a large stream of light. If opened narrow it lets in a smaller amount of light. Going back to the f-stop numbers, opening up one full f-stop doubles the amount of light entering the camera; closing down one full f-stop cuts the light in half)
3. how the shutter speed controls the light
(The diaphragm can close faster or slower, thus the speed can control the amount of light entering the camera. If a fast shutter speed is used, the exposure time is short, if a slow shutter speed is used, the exposure time is longer, and a larger amount of light will enter the camera.)
Observation: standard focal length for a 4/3 camera – 20–25mm
Exercise: three photos, using three different focal lengths - in my case:
11mm, 50mm, 150mm
(The distance from the eye, at which I have to keep the first photo - taken with the lens at 11mm and printed on an A4 paper (for a comfortable viewing) - is about 30 cm; for the second image is about 60-70 cm, and for the last one, well....about 1.7 m; it seems MY comfortable viewing distance is a bit "further a way" than it should be, guess I'm going "farsighted" :). So...the exercise was good for something :))
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