Originally posted by stevebrot Is your K-70 new? If so, perhaps you might want to negotiate a replacement from the seller as defective?
Steve
Hi Steve,
Thanks for all of your comments and suggestions.
It's definitely a metering issue and it's unlike what I've seen with my other K-mount cameras. I'm willing to bet it's not a K-70 issue; it's likely it's a "this individual camera" issue.
I was short-thoughted to call this similar to the other metering inconsistencies I've experienced on the other cameras. Those won't manifest in brick wall tests or evenly-lit scenes. It happens for me when shooting into bright lights and into hard contrast - like shooting straight into the sun in a scene. The OVF exposes brighter than the LV in that case a whole bunch. OVF is quicker at clipping highlights, and LV metering seems to avoid it better. And 0.6 stops (at the worst) is definitely an acceptable variance to me; no complaints at all.
The scene I first shot with this camera wasn't that same scene-lighting case. I had a K-1 on hand, and IIRC it metered evenly in both modes.
I think I'll dig around inside the open body cavity and see if I can find something that looks strange. I can't explain it otherwise - the metering sensor is thinking there is more light than there is, so it's not like there's a neutral-density film covering the sensor (since that would err the other way).
Originally posted by stevebrot: Is your K-70 new? If so, perhaps you might want to negotiate a replacement from the seller as defective?
This was a repackaged model + 18-135 lens from Amazon Warehouse, listed in very good condition, reporting a cosmetic issue on the front of the body and none of the boxes for the body or lens. I also took delivery 10 weeks ago, so I'm far outside the return period. I guess this is reverse karma, because in the Deals forum I've been quick to speak well of Amazon Warehouse in the past. Now I get to tap the brakes on that.
Any repair is going to be more costly than I paid for the body itself, so I think I'll maybe convert it to an IR camera instead, where I wouldn't meter off the OVF anyway. Change of plans for how I intended to use the body, but this could be my lemons-to-lemonade solution.
---------- Post added 06-18-19 at 02:43 PM ----------
Originally posted by MarkJerling I think, as what you are describing with your cameras is an entirely different issue than the aperture solenoid issue, it's certainly appropriate in it's own thread. Especially as you say you've had this problem with near every Pentax DSLR you've owned.
Thanks Mark, and I agree. Definitely not the aperture block solenoid issue.
I cringed a bit re-reading my past post, since it's definitely not the same phenomenon I've seen with the other cameras. I don't think it's a K-70 model issue, I think this one is a "this specific device" issue.