ssepan
Senior Member
My issue revolves around the sub-command dial not changing the aperture.
Although the question has been asked and answered here on Nikonites (for a D750, http://nikonites.com/d750/31439-aperture-priority-problem-main-control-dial-not- working.html), I have a similar issue and it is not resolved for me, so I'm going to post my own. I'll try to cover the most frequently asked questions and suggestions. (Sorry for the length of it, but i want to cover the points I've seen in various other posts on Nikonites and elsewhere.)
1) I have both a D610 and a D7200. The main dial on each alters the shutter speed, but the sub dial will not alter the aperture. Both are recent acquisitions, and both are otherwise performing admirably. The D7200 is new (gray/Asian market) and the D610 is used (US). Both cameras exhibit the same refusal to alter the aperture on the sub-command dial.
2) I am shooting only with old manual manual lenses adapted to the camera with a Fotodiox adapter with no electrical contacts and no aperture-coupling (M645-Nik).
3) The mode is M, but the behavior is the same in A. (No other modes are usable w/ a non-CPU lens/adapter).
4) If I manually (that is, with my finger) move the aperture-coupling lever, the aperture changes. It does this whether Live View is On or Off. It does this regardless of #5.
5) I DO have the dial selected instead of the aperture ring. (D610,D7200: f5| Aperture setting=ON)
6) The behavior is not limited to Live view. (troubleshooting - Is it normal that manual exposure does not work on the Nikon D7000 in Live-View? - Photography Stack Exchange exposure-does-not-work-on-the-nikon-d7000-in-live-view)
7) I have entered and selected Non-CPU Lens data on both cameras.
8) d8 (Easy ISO) has no effect on this (in M, not applicable in A).
9) The main/sub-commands are not switched (D610,D7200:f5|Change main/sub=OFF).
10) The sub-command dial is not broken. If I DO switch the main and sub, the shutter changes with the sub dial, but the aperture does not change with the main dial. (See also #13.). Also, if I change the ISO and Auto-ISO, the dials both work.
11) Turning the grip (610:Nikon, D7200:Vivitar) On/Off has no effect on the camera's dials.
12) Removing the grip (as suggested somewhere) has no effect on the camera's dials.
13) With the grip attached and On, the grip's main and sub dials behave just as those on the camera (see #'s 9, 10)
14) (Subjective) The cameras are not too warm. (Nikon 750 Sub-command dial: Nikon FX SLR (DF, D1-D5, D600-D800) Talk Forum: Digital Photography Review)
15) Two-button reset, as suggested by someone somewhere. D610, D7200: no change.
16) It is unaffected by the AF/MF switch, which is in MF mode right now.
Although the question has been asked and answered here on Nikonites (for a D750, http://nikonites.com/d750/31439-aperture-priority-problem-main-control-dial-not- working.html), I have a similar issue and it is not resolved for me, so I'm going to post my own. I'll try to cover the most frequently asked questions and suggestions. (Sorry for the length of it, but i want to cover the points I've seen in various other posts on Nikonites and elsewhere.)
1) I have both a D610 and a D7200. The main dial on each alters the shutter speed, but the sub dial will not alter the aperture. Both are recent acquisitions, and both are otherwise performing admirably. The D7200 is new (gray/Asian market) and the D610 is used (US). Both cameras exhibit the same refusal to alter the aperture on the sub-command dial.
2) I am shooting only with old manual manual lenses adapted to the camera with a Fotodiox adapter with no electrical contacts and no aperture-coupling (M645-Nik).
3) The mode is M, but the behavior is the same in A. (No other modes are usable w/ a non-CPU lens/adapter).
4) If I manually (that is, with my finger) move the aperture-coupling lever, the aperture changes. It does this whether Live View is On or Off. It does this regardless of #5.
5) I DO have the dial selected instead of the aperture ring. (D610,D7200: f5| Aperture setting=ON)
6) The behavior is not limited to Live view. (troubleshooting - Is it normal that manual exposure does not work on the Nikon D7000 in Live-View? - Photography Stack Exchange exposure-does-not-work-on-the-nikon-d7000-in-live-view)
7) I have entered and selected Non-CPU Lens data on both cameras.
8) d8 (Easy ISO) has no effect on this (in M, not applicable in A).
9) The main/sub-commands are not switched (D610,D7200:f5|Change main/sub=OFF).
10) The sub-command dial is not broken. If I DO switch the main and sub, the shutter changes with the sub dial, but the aperture does not change with the main dial. (See also #13.). Also, if I change the ISO and Auto-ISO, the dials both work.
11) Turning the grip (610:Nikon, D7200:Vivitar) On/Off has no effect on the camera's dials.
12) Removing the grip (as suggested somewhere) has no effect on the camera's dials.
13) With the grip attached and On, the grip's main and sub dials behave just as those on the camera (see #'s 9, 10)
14) (Subjective) The cameras are not too warm. (Nikon 750 Sub-command dial: Nikon FX SLR (DF, D1-D5, D600-D800) Talk Forum: Digital Photography Review)
15) Two-button reset, as suggested by someone somewhere. D610, D7200: no change.
16) It is unaffected by the AF/MF switch, which is in MF mode right now.
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