rawr, come on, saying that my settings forced ISO3200 is just silly. This has been my favoured mode since I got my K-10d.
I use TAV all the time to allow me to pick a depth of field I can live with, a shutter speed that keeps fast moving subject blur-less and then let the camera pick the ISO for the circumstances. THAT is what TAV does. It is the program of choice for wild life for the same reason.
Suggesting 1/750s just tells me you don't shoot a lot of birds.
Yes, I could restrict the ISO - but then when I suddenly spot a fox under some trees, or a nightingale in the shade, I am not prepared. The whole beauty of TAV is that it lets the camera compensate the exposure by varying the ISO.
Why on earth would f5.6 and 1/2000 force ISO 3200? Here is another couple of shots from yesterday where the camera did not act up. This is what SHOULD happen (shots at the end of the message):
---------- Post added 06-01-15 at 08:43 AM ----------
Originally posted by Samoht You can also change the ISO range for ISO Auto and decrease the max value, then set shutter speed accordingly. Or perhaps use the M mode.
I had some issues with overexposing as well but found out that I had followed the recommended settings in the PF review which contained assigning exposure bracketing to button Raw Fx so from time to time I accidentally pressed Raw Fx without knowing it and got +0,3 EV resulting in overexposure.
Thanks, Samoht, I might resort to restricting the ISO - it just seems silly to have to. Using M mode won't give me the versatility I am looking for - I really like to be able to focus on the action when I am birding, rather than constantly checking camera settings.
Originally posted by gaweidert I have had the same problem with my K5-IIs. FWIW I was using a brand new Tamron 70-200 f2.8 lens when I first experienced it. The first photograph was dead on. Then it started overexposing. I am not sure of the cause, but it only happens in TAV. It ruined a series of shot of the Blue Angels. I have not seen it on my K3 yet. For me. the first shot is always okay. After that, exactly what you have. It is random and frustrating. For that reason, I have pretty much given up on TAV.
Oh - that IS discouraging. TAV is my favourite Pentax feature - I really don't want to give up on it.
Originally posted by darylk Make sure your aperture blades are snappy. If they aren't, your aperture is likely not closing fast enough during exposure.
---------- Post added 06-01-15 at 09:25 AM ----------
Also, make sure you don't have the EV compensation inadvertently cranked up.
Actually, since this began with my K5-II I have kept it pretty much constant on -1EV. It only happens on single shots in a multi-exposure series usually, the stoat was the first all-blown-out-series I have had.
Originally posted by stevebrot Both cameras? Same lens, by any chance? Is it possible that your lens is not stopping down for the exposure?
No, when I go birding I keep my K3 with the DA*300mm and my K5-II with a 100mm macro for bugs and bees - with the K5-II it has happened with my Tamron 28-75mm as well, and my Sigma 28mm. This was the first time my K3 let me down this way...
Steve
Originally posted by IchabodCrane What happens when you set the mode to P? Same result?
I haven't had the problem in P mode - but I have to say I rarely use it. For family setting etc. I usually use Av, and it HAS happened in that setting. Usually I delete the blown out ones, so I did not hang on to a lot of documentation...
THanks a LOT for all your helpful comments. I suppose I will see how the situation develops: I still have a year and a half warranty on my K3.