Olympus C3020 C-3020 Zoom Reference Manual (5.6 MB) - Page 194

Chapter 12 Troubleshooting (Cont.) POSSIBLE CAUSES CORRECTIVE ACTION REF. PAGE There is an unusual halo effect on the picture. 1 This may occur because of the influence of ultraviolet rays specifically when you shoot a subject under the condition where there is a big difference in brightness among portions of the subject such as sunbeams shining through branches of trees, lights coming through windows in night scene or lights reflected on metals. 1 The use of a UV filter may affect the total color balance of the picture. Therefore it is recommended to use a UV filter only under the condition described on the left. 2 Retouch the picture using photo-retouching software such as Photoshop and Paint Shop Pro after transferring it to the computer. Using the software, you can sample the unnaturally colored portion with a color-sampling tool such as the eyedropper tool, specify the color range, and then replace the color with an appropriate one or adjust color saturation. For details information about retouching, refer to the instruction manual of the software. 194