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Forum: Pentax Camera and Field Accessories
09-07-2008, 07:07 AM
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Thanks for your reply.
I tried using Av mode with the flash turned on and off, and it definitely makes a difference - in darker lighting the shutter speed required for proper exposure becomes very long with the flash off. With the flash on, I still run into the same issue: shutter speed of 1/60th at 50mm focal length, down to 1/30th at 20 mm. So the camera is reading the flash unit - it's just that the shutter speeds being selected are too slow!
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Forum: Pentax Camera and Field Accessories
09-06-2008, 06:17 PM
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While shooting with the external flash with a zoom lens in Av mode, the camera selects the shutter speed; this depends on the focal length of the lens. While shooting at a 55mm focal length, the camera selects a shutter speed of 1/60 (regardless of aperture). However, if I zoom out to a focal length of 18 or 20mm, the camera selects a shutter speed of only 1/30! This is too slow and often results in blurry photos. I have also trying using the external flash with shutter priority and a faster shutter speed, but this pushes the aperture down to minimum and thus I lose depth of field and sharpness. Has any one encountered this problem? Any suggestions appreciated.
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