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. 2014 Jul 22;281(1787):20140787. doi: 10.1098/rspb.2014.0787

Figure 2.

Figure 2.

Qualitative transmission of filters. (a) Transmission spectra of the filters used. (b) Male fish photographed through filter ND25 under experimental light (white scale bar is 1 cm); (c) same individual photographed through filter NoRED. Both pictures were taken with a short-wavelength-reducing filter (see ‘Fluorescence photography and morphometric parameters’ section for details). (Online version in colour.)