There are two features of the Nikon Coolpix P330 that might be relevant here:
- Zoom memory
- Startup zoom position
The manual describes the
Zoom memory feature as follows. This feature is only available in modes P, S, A, M, U.
When the zoom control is operated, the camera changes in steps to the focal length (equivalent to 35mm [135] format of angle of view) of the zoom lens that is set in advance. The following settings are available: 24mm, 28mm, 35mm, 50mm, 85mm, 105mm and 120mm.
The manual describes the
Startup zoom position feature as follows. This feature is only available in modes P, S, A, M (not U).
When the camera is turned on, the zoom position moves to the focal length (equivalent to 35mm [135] format of angle of view) of the zoom lens that is set in advance. The following settings are available: 24mm (default setting), 28mm, 35mm, 50mm, 85mm, 105mm and 120mm.
As I noted earlier, I found a revised setting of 50mm to be convenient.
The maximum aperture of f/1.8 drops off as one zooms away from 24mm.
- 24mm = f/1.8
- 28mm = f/2.0
- 35mm = f/2.5
- 50mm = f/3.2
- 85mm = f/4.5
- 105mm = f/5.2
- 120mm = f/5.6
My very limited and subjective trials suggest that, when digiscoping, zooming in past 50mm will give a slightly enlarged view but not more photographic detail. Hence the key statistic here is
f/3.2, this being the maximum aperture at 50mm.
The current focal length is only available on the display when the
Zoom memory is active. Once shot, the focal length information is, of course, recorded in the EXIF metadata in both actual and 135 equivalent terms and can be recovered later if need be.
HTH, Robbie