Pentax K-7 K-7 Manual - Page 296

294 Notes on [37. Using Aperture Ring] When [37. Using Aperture Ring] in the [A Custom Setting 6] menu is set to [Permitted], the shutter can be released even if the aperture ring of the D FA, FA, F or A lens is not set to the s (Auto) position or a lens without an s position is attached. However, the features will be restricted as shown below. 37. Using Aperture Ring 1 Prohibited 2 Permitted Shutter will release when aperture ring is not set to the "A" position Restrictions on using lenses with aperture ring set to a position other than s Lens Used Exposure Mode Restriction D FA, FA, F, A, M (lens only or with auto diaphragm accessories such as auto extension tube K) c (Aperture Priority) The aperture remains open regardless of the aperture ring position. The shutter speed changes in relation to the open aperture but an exposure error may occur. In the viewfinder, [F--] appears for the aperture indicator. D FA, FA, F, A, M, S (with diaphragm accessories such as extension tube K) Manual diaphragm lens such as reflex lens (lens only) c (Aperture Priority) c (Aperture Priority) Pictures can be taken with the specified aperture value but an exposure error may occur. In the viewfinder, [F--] appears for the aperture indicator. Pictures can be taken with the specified aperture value in the manual FA, F SOFT 85mm FA SOFT 28mm (lens only) c (Aperture Priority) aperture range. In the viewfinder, [F--] appears for the aperture indicator. When depth of field is checked (Optical Preview), exposure metering starts. 10 Exposure check is possible. Appendix All lenses a (Hypermanual) Pictures can be taken with the set aperture value and shutter speed. In the viewfinder, [F--] appears for the aperture indicator. When depth of field is checked (Optical Preview), exposure metering starts. Exposure check is possible. The camera operates in c (Aperture Priority) mode even if the mode dial is at B, e, K, b or L when the aperture is set to the position other than s.