In this production skills lesson (16/1/15) we where shown all the different sizes and kinds of camera lenses that go on 16mm and 35mm cameras ahead of our Me Myself and I project.
No matter what lens is used everybody that uses the camera needs to adjust the eye piece for there specific eye sight by focusing the black line because what suits them specifically does not suite anybody else because as everyones eye sight is different.
Measure the distance between a sign of a circle with a line through on the side of the camera to the subject in front.
Prime lens - Is much sharper than a variable lens has better F stop but unable to zoom or adjust focal length
Variable lens - can zoom and comes in 10m to 100m
F stop - Is a physical iris that is most commonly opened to the number 1.4 also a faster the F stop effects the depth of field
T stop - Transmission of light through lens
Aperture - Iris controls how much light comes through also effects depth of field
ISO - Film speed
16m Camera
- 24-25 closest to the human eye
- 50mm - Telephoto
- 100mm -
35m Camera
- 24mm - wide angle lens that shoots in panorama and stretches perspective
- 50mm - closest to the human eye
- 100mm - (Telephoto) gives a tighter crop and foreshortens the perspective
24mm lens = 84 degrees
50mm lens = 47 degrees
100mm lens = 18 degrees
All 35mm numbers are equivalent to 16mm by 1/2 them
NOTES
- Don't leave the lens of a long time when changing or any other time unless you cover the whole as dirt can get inside.
- Never touch the glass part on the back or front of the lens and hold in the middle
- Always ask what the lens mount is
- To eject the lens click the two buttons under the lens and twist
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