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

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Flickr description

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

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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 Biniʼantʼą́ą́tsʼózí 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

27 Biniʼantʼą́ą́tsʼózí 2021

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copyright status English

copyrighted English

inception English

26 Ghąąjį 2019

coordinates of the point of view English

25°49'43.950"S, 27°59'22.150"E

exposure time English

39.2 second

f-number English

16

focal length English

70 millimetre

ISO speed English

1,250

MIME type English

image/jpeg

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