Meya,
I would also agree that it could be a cheap UV filter (if you are using one) or aperture, as has been stated already. I would agree that f/11 is about where you should be for sunsets/sunrises. Wide open and you run the risk of blowing highlights. Stopped way down and you loose IQ and risk lens flare.
But it is also possible it is the lens itself. I have used a Pentax K10D (same camera as yours) and have one particular lens that does that all the time (a kit lens I had from my film ZX-7). I was told it could be just the flare qualities of the lens...usually the sign of a cheaper lens as well. Also, it may be caused by using an older lens designed for use on a film camera (different coating).
My Pentax DA 40mm limited lens is the best I have for sun flare. I also use a wide DA 10-17mm and an old Pentax M 28mm f/3.5 without UV filters and the results have been wonderful as well.
__________________
Cameras: Pentax K5, K20D, K10D, *istDL, ZX-7, ZX-L
Eagle Vista Photography - Flickr - Pentax Gallery
"Anybody can make the simple complicated. Creativity is making the complicated simple." Charlie Mingus
Last edited by navcom; 01-10-2009 at 02:35 AM.
|