Yes, RTF = ReTractable Flash, I guess. I'd go and see the dealer, if I were you, Dave. Show him what happens!
Did you do the test in a bright environment or in a dark place? Are you using fast, normal or depth programs (??) - or is this issue out of the question in Smart-Pic mode? I have now made shots in every possible mode (Green Mode-P-Tv-Av-M). I've tried F.1.4 and F.8. And all speeds between 1/8-1/150 sec. I just can't seem to get one bad exposure, no matter what! I still believe your RTF is not doing TTL properly. If your AF330FTZ was in TTL mode, then the camera sensor works all right. The RTF must be the problem. The difference between old (pre A) and new lenses is the method of measurement. The old ones can't do matrix and the camera chooses Centre Weighted instead (if the camera is set to matrix/pattern). The distance does not influense exposure unless you link AE to AF-popints, I believe. And I guess this feature will only work with matrix metering, not Centre weighted. I'm not an expert. But your camera really should produce brilliant results, with and without the flash. Jens Bladt mailto:[EMAIL PROTECTED] http://hjem.get2net.dk/bladt -----Oprindelig meddelelse----- Fra: David Oswald [mailto:[EMAIL PROTECTED] Sendt: 15. februar 2005 21:52 Til: [email protected] Emne: Re: *istDS built-in flash overexposure problem Jens Bladt wrote: > Dave, I just made a similar test to yours - with the *ist D, though. > > I get correctly exposed "frames" - even at 1/60 F. 2.8, useing "P" setting > at 200 ISO at 3-5 feet distance. > I also just tried 800 ISO and 3200 ISO. I still get correctly exposed > "frames" all the time! Thanks for checking with your ist-D. > I have even tried likning/not linking AE to the AF-point. This resulted in > very small differences, due to the foreground/background issue. A foucus > point close to the camera (shorter focus distance) did result in less flash > output, when AE/AF point was linked - which naturaly is quite > understandable. > In both cases (linked or unlinked) my exposures came out just fine. I'm set for the default, unlinked. > Did you turn off "Sensitivity Correction", which might be a possible source > of the problem. I haven't been using sensitivity correction at all, so it's turned off. > Your RTF-flash may not work correctly (TTL-mode) I guess. The RTF-flash uses > TTL all the time, I guess. Not sure what RTF means, is that the built-in flash? I could understand there being some issues if I were using older Pentax lenses, but I've confirmed the same issue with each of the following lenses: SMC Pentax FA 50mm f/1.4 SMC Pentax FA 28-105mm f/3.2-4.5 AL (IF) SMC Pentax DA 18-55m f/3.5-5.6 AL SMC Pentax FA 20-35mm f/4 AL Again, the built-in flash burns out any picture taken closer than about 5 feet, and the camera's metering keeps the aperture somewhere in its most wide-open range, eg the 50mm will be set to f/2.8 at 5', and doesn't seem to change based on focusing distance at all. But when I turn on the AF330FTZ, the metering jumps up to f/8, and changes relative to focus distance as it should. This is in smart-pic mode. I'm beginning to wonder if I got a bad unit or something, because over the years I've never seen a fully-auto mode camera so badly blow out its flash pictures. I hate to take a 1 week old camera in for service... Dave
