Just wondering, I have learnt all about shooting in full Manuel. As I understand it in auto the camera adjust aperture blades, does this still happen in Manuel. Am using 18-105 lens. So do blades stay still and shutter speed is adjusted to what aperture you set or do aperture blades still open wide and close shallow according to aperture that you set from command dial.
Aperture blades in full manual
(9 posts) (5 voices)-
Posted 7 months ago #
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If you are shooting full manual then it is just that...fully manual and you change everything. If you shoot S mode then you are setting the shutter length and the camera is changing the aperture to match that shutter speed. If you shoot A mode you are changing the aperture and the camera is changing the shutter speeds.
Posted 7 months ago # -
In most of the modern Nikkor lenses, shooting in Manual mode simply allows one to set both the shutter speed and the aperture used during the exposure. During viewing, the aperture blades are wide open, and close only for the exposure. However on some manual lenses, the shutter must be manually opened to focus, however these are older models or non-Nikkor lenses for the most part.
For the 18-105, on any of the current Nikon bodies, the aperture is normally wide open for viewing, then when you shoot, the blades close for the exposure. One can see the effect of the closed down aperture blades by pressing the "preview" button, located on the right side of the lens (when viewed from the shooting position behind the camera).
The settings in the camera itself electronically are what determine what aperture the lens will close to while in manual mode. In shutter priority and program mode, the aperture will be varied by the camera's computer as needed to attain the correct exposure.
Posted 7 months ago # -
Thanks tcole and msmotofor youer replies. so msmoto the point is then that the camera will and does change the aperture blades from closed to open or open to closed after i have chosen my settings and then take the shot.
Posted 7 months ago # -
With all the current Nikkor lenses, on the modern Nikon bodies, and I guess you have something from the last five years or so...the aperture blades are wide open unless the shutter button is pressed and the exposure is taken, or the preview button is depressed. Any other condition, unless it is an older Nikkor which must be locked in its minimum aperture setting for the modern cameras to function property, there is a malfunction in the system.
The exception is the line of PC Nikkor's which are not easily used on anything but the pro bodies as a result of size/shape limitations. These operate the aperture in a slightly different manner. Now, if someone else can think of another exception, I am interested as well.
Posted 7 months ago # -
Thanks msmoto yeah i have a D7000 and you have satified my curiosity in regards to this subject. thankyou once again :-)
Posted 7 months ago # -
To see the actual aperture blades closing at various f stops yourself, (and the effect they have on depth of field), take a series of shots pointing directly in to a mirror. I always find that one of the best ways of showing new photographers the aperture blades in action. (Not saying your a new photographer! :-)
Posted 7 months ago # -
On some cameras there is a way to override the "must be locked at smallest aperture" requirement. There's a menu setting that allows you to use the aperture ring on lenses that have them. The blades still only close down in the situations you mention, msmoto. If you mount a lens without an aperture ring it goes back to the normal behavior of having aperture set by the command dials. Someone in another thread pointed it out.
Posted 7 months ago # -
Thanks all I think I have come to now understand that in full Manuel the camera will still adjust aperture blades according to my setting with command dial. yes am relatively new.
Thanks very much
Posted 7 months ago #
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