File:Natal long-fingered bats (Miniopterus natalensis) in flight (48966808522).jpg

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Original file ‎(2,647 × 3,169 pixels, file size: 5.01 MB, MIME type: image/jpeg)

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They look transparent because of the long exposure, where some of the pixels from the background are superimposed on the bat image. This was done with a bank of 6 flashes triggered by laser sensors. The camera is on bulb (manually holding the shutter open), and preset to ISO 1200 and F16. The best images are obtained by closing the shutter as soon as the flash is triggered. I wish I could do this again now, with what I learned last night! Thanks to Gert de Beer for the invitation, and Ernest Seamark from African Bats (<a href="http://www.africanbats.org" rel="noreferrer nofollow">www.africanbats.org</a>) for the opportunity to use their research facility. Thanks also to Gordon from Horizons Leisure and Learning Sanctuary for the use of the facilities, the property where the bat cave is located, and the great braai afterwards.
Date
Source Natal long-fingered bats (Miniopterus natalensis) in flight
Author Derek Keats from Johannesburg, South Africa
Camera location25° 49′ 43.95″ S, 27° 59′ 22.15″ E Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

Licensing

w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by Derek Keats at https://flickr.com/photos/93242958@N00/48966808522. It was reviewed on 27 August 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

27 August 2021

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Natal Long-fingered Bat

inception

26 October 2019

coordinates of the point of view

25°49'43.950"S, 27°59'22.150"E

exposure time

39.2 second

focal length

70 millimetre

MIME type

image/jpeg

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Date/TimeThumbnailDimensionsUserComment
current15:39, 27 August 2021Thumbnail for version as of 15:39, 27 August 20212,647 × 3,169 (5.01 MB)AwkwafabaTransferred from Flickr via #flickr2commons

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