Originally posted by Silent Street Load the camera with e.g. Velvia 50 or 100 transparency film. With this, you have a very narrow working range to get exposure spot-on, and this is the ideal way to test a camera, assuming you have a good working knowledge of the idiosyncracies of transparency film and the values with which it returns the best results. Go out in conditions other than bright point light (ideally hazy to diffuse) and shoot. Expose the film in both shadow and highlight situations. Take notes. Process the film. If there are glaring inconsistencies with all of the exposures, then a problem may be indicated, assuming the ISO has been set correctly and there is no compensation active on the camera. THEN and only then draw assertions as to the accuracy of the camera's metering and/or exposure system. Never draw any sort of value from print film because the latitude will not show up minor problems.
The other thing to consider is the age of the camera. This model first appeared in 1984. So how many years ago is that?? Reliability of cameras can and does diminish over time, more so if they have seen constant hard professional service. If basic self-tests like the above return consistently abnormal results, the best thing to do is have the camera fully serviced.
I usually shoot velvia 50 or provia 100f.
The scene I noticed inaccurate metering is this waterfall
Photo of the month – January | David "HAJES" Hajek Fine Art Photography (BETA) (this picture is from DSLR)
I bracketed this scene. EV0 underexposed. EV+1.0 spot on at least what I have seen on light table. There is overblown highlights which may fool metering of camera.
An other scene was landscape reflection in water with Provia 100F and EV0 was spot on.
Otherwise, as someone said...I already take notes and will adjust accordingly.
Camera came from respectable German Dealer. But I guess they just check if camera works mechanically and that's it.
thanks for suggestion guys
---------- Post added 03-03-14 at 11:27 ----------
Originally posted by Smolk Frankly, I don't have the aperture mismatch at all with my 645N and 6 lenses, or any other Pentax camera, so the rather sweeping statement that Pentax does have this inconsistency does not apply to my cameras at least. In shooting slides, metering has been spot on. That said, I did read about someone who had this issue somewhere in these forums with the 645N I think.
As for the AWB, yes, my wife's K-x does have this problem, but it is hardly related to the aperture issue.
I am not sure whether you have understood my question or just my english is weak.
I have asked for two unrelated issues.
Aperture ring and viewfinder F number doesn't match.
And metering inconsistency. Unsure, why you refer aperture is cause of metering inconsistency.