Mt. Auburn - UG-2a

[bobfriedman]

Nikon D800 UV-VIS-IR ,Nikkor 17-35mm f/2.8D ED-IF AF-S ,UG-2a
1/160s f/5.6 at 17.0mm iso100


Nikon D800 UV-VIS-IR ,Nikkor 17-35mm f/2.8D ED-IF AF-S ,UG-2a
1/200s f/5.6 at 17.0mm iso100


Nikon D800 UV-VIS-IR ,Nikkor 17-35mm f/2.8D ED-IF AF-S ,UG-2a
1/200s f/5.6 at 19.0mm iso100


Nikon D800 UV-VIS-IR ,Nikkor 17-35mm f/2.8D ED-IF AF-S ,UG-2a
1/125s f/8.0 at 19.0mm iso100


Nikon D800 UV-VIS-IR ,Nikkor 17-35mm f/2.8D ED-IF AF-S ,UG-2a
1/200s f/8.0 at 19.0mm iso100

[Akira]

Interesting color.  Do you detect the usable effect of the purple portion?  I don't think this 17-35 zoom would transmit any usable amount of UV.

[bobfriedman]

Interesting color.  Do you detect the usable effect of the purple portion?  I don't think this 17-35 zoom would transmit any usable amount of UV.

well it certainly transmit blue.... the problem is that i can't WB this correctly with the UV-VIS-IR conversion.

[Akira]

Judging from the transmission chart of UG-2A, it might be regarded as a light IR filter with the additional purple.  It could be interesting for the false color effect?