| SPOT metering | Appli- cations |

|  | Try to use SPOT metering if the following situations are encountered:
| The part you wish to save an image of is dark and looks buckled.
| The part you wish to save an image of is too bright and looks buckled.
| What is SPOT metering ? The photometric area is narrowed down to 1% of the center area of an image. (Normal center average metering produces a photometric area that is 30% of the center area of an image.)
| The merit of SPOT metering Since the photometric area can be pinpointed to any small area on a specimen to be recorded as an image, photometry can be performed with priority given to the brightness of the area to be saved as an image.
Example in which SPOT metering is effective:
| If center average metering is used: The photometric area is wide. If there are many bright parts in the photometric area, the overall image is darkened which may result in the dark part of a specimen appearing buckled.
| If SPOT metering is used: Since the photometric area can be pinpointed to any area on a specimen, an image can be acquired with the level of brightness appropriate for the part to be saved as an image.
|  | Since the photometric area is small if SPOT metering is used, there are cases where the peripheral area of an image lacks the proper brightness level. It is recommended, therefore, that the size of the photometric area be adjusted to ensure a proper level of brightness. |
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