Thanks for you comments. The only reason I used green mode is to make sure the camera is in a default mode. In fact I normally never user green mode, I finally decided for the D because of it's HyP mode. Flash FOV is ok. It's amazing to see that a identical scene (from a tripod) is measured differently with different ISO settings. I also prefer M mode for flash but the exposure error with 200, 400 and 800 ASA is the same. Bounched TTL flash on the istD has the same exposure problems. I love the camera but I would think such a beast could do TTL flash exposures perfectly. However it's not a big issue and easily corrected. Maybe I will get an omnibounce for indoor party snapshots. Jack
On 11/9/05, Jens Bladt <[EMAIL PROTECTED]> wrote: > Jack, in my experience, TTL metering is not very accurate at ISO 800. Stick > to ISO 200-400. (Who needs a flash at ISO 800??) > Exposure should be OK at ISO 200. Did you have a too lagrge distance to get > enough light at ISO 200, do you think? Did you use the correct FOV for the > flash? > I have also noticed that TTL flashes don't work very well with the *ist D if > I use the red-light spot for AF. Don't ask me why. Flashes that don't have > this feature work better in TTL mode. > > I wouldn't use Green Mode - at all. Green mode is for Point and Shooters and > doesn't really belong on a DSLR IMO. > I use manual mode to ensure that I am in control of speed and aperture. The > TTL (or the flash sensor) will take care of the exposure. I am in charge of > DOF and motion-unsharpness (provided the room is not completely dark). > > Annother thing. I hardly ever use a flash directly. Light is supposed to > come from above. Not horzintally. Horizontal shadows are ugly IMO. I bounce > off the cieling or at lest off a 45 degree screen on top of the flash, or a > small soft box - or whatever. Anything but a direct flash. Your shots will > look as if they were made with a Point & Shoot. Anyone can do this with a > Canon IXUS or whatever - so why bother carying a heavy DSLR with a big flash > on top? > > But you are right TTL flash sucks on *ist D. It's not accurate. Find you own > mode. And know how much exposure compensatiob is needed for ISO 200, 400 and > 800 for a particualr flash. Then simply stick to these settings. > Photographers hav always done this. Good or bad pictures, that's your > choise. Afterall - a camera is just tool - like a hammer or a bicylce. > You're the craftsman. > > Regards > > Jens Bladt > http://www.jensbladt.dk > > -----Oprindelig meddelelse----- > Fra: Jack Isidore [mailto:[EMAIL PROTECTED] > Sendt: 7. november 2005 18:50 > Til: [email protected] > Emne: flash issues with IstD and 500FTZ > > > I have an istD with 330FTZ, 400FTZ and 500FTZ flashes. > The camera is in green mode and I take flash shots at ISO 200, 400 and > 800 ASA all from a tripod, the same subject and the flashes in > auto-TTL mode. > The 200 ISO shots are all underexposed, 400 ISO is more or less > correctly exposed and 800 ISO are all overexposed. > > The IstD manual recommends 200-800 ASA for these flashes. > > The solution would be to allways use ISO 400 for flash which would be > very strange. > > Jack > > >
