Vivitar 13MM-C 13MMC Lens Manual - Page 8

Brightness Control - a

Page 8 highlights

Brightness Control You can set the amount of brightness you want by turning the aperture adjustment ring when using your lens. [Aperture adjustment ring markings] When you turn the aperture adjustment ring between 22, 16, 11, 8, 5.6, 4, 2.8, 2 and 1.4 you are making 1 stop each turn. Brightness can be set more precisely by making half stops as well (see below). 5.6 and 8 are 1 stop apart (1EV). Set a 0.5 stop (0.5EV) between 5.6 and 8 -7-

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16

-7-
Brightness Control
You can set the amount of brightness you want by turning the aperture adjustment ring when
using your lens.
5.6 and 8 are 1 stop apart (1EV).
Set a 0.5 stop (0.5EV) between 5.6 and 8
When you turn the aperture adjustment ring between 22, 16, 11, 8, 5.6, 4, 2.8, 2 and 1.4 you are
making 1 stop each turn. Brightness can be set more precisely by making half stops as well (see
below).
[Aperture adjustment ring markings]