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drmytan
Guest
Recently l tried long exposure shots with my H4D31 and just realised this camera only gave the bulb maximum time of 64sec ... how to use my newly purchased Lee's big stopper 10x filter?
Now my real question is l noticed especially when using the wide-angle lens of 28mm together with filter (CPL or ND) and with longer exposure l noticed red and blue pixel type patches/spots on the shadow areas. Are they called 'hot pixels' due to the long exposure generating the heat on or from the sensor as explained by my dealer here? Sorry l am not the technical genius but love to shoot photos only.
How on earth can l reduce this? By not doing the long exposure shot, so what is the ideal exposure time to avoid this sort of artifacts? Any software to overcome it? Anything in the camera setting to use to stop it? Editing by photoshop doesn't help much.
Is it possible to increase Bulb time beyond 64sec (after l have solved my problem of 'hot pixels')? Otherwise no point of doing more than 64sec if one still gets the hot pixels.
Thanks for any comment and suggestions
Now my real question is l noticed especially when using the wide-angle lens of 28mm together with filter (CPL or ND) and with longer exposure l noticed red and blue pixel type patches/spots on the shadow areas. Are they called 'hot pixels' due to the long exposure generating the heat on or from the sensor as explained by my dealer here? Sorry l am not the technical genius but love to shoot photos only.
How on earth can l reduce this? By not doing the long exposure shot, so what is the ideal exposure time to avoid this sort of artifacts? Any software to overcome it? Anything in the camera setting to use to stop it? Editing by photoshop doesn't help much.
Is it possible to increase Bulb time beyond 64sec (after l have solved my problem of 'hot pixels')? Otherwise no point of doing more than 64sec if one still gets the hot pixels.
Thanks for any comment and suggestions