Tag Archives: UV-imaging

ZWO ASI1600MM-cool – UV imaging


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One other thing I was interested to test out on the ASI1600MM-cool is its UV-imaging potential. This could be particularly useful bearing in mind its slightly larger sensor, for documenting the UV-pattern of flowers or of the human skin (bruises, sun-damage etc). I picked a Buttercup flower from my back garden and used this as my subject for testing its UV-imaging capability. Continue reading ZWO ASI1600MM-cool – UV imaging

ZWO ASI178MM-cooled UV-imaging


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One of the areas of photography that I have an interest in, and wanted to test out of the ASI178MM-cooled for a while, is UV-imaging. That is imaging below 400nm wavelength, which is  invisible to normal human vision. Now it is unclear the response of the IMX178 Sony Starvis sensor to the light below 400nm, but I felt I needed to test this out, particularly as it does not have a Bayer Matrix to affect UV-transmission. But the big question I had was whether the AR window protecting the sensor would block deeper UV? Continue reading ZWO ASI178MM-cooled UV-imaging

White hydrangea


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I have a few varieties of hydrangea growing in the front of the house. This is one of the white ones. I have previously photographed this before, but never quite managed to get the white balance right. Hence it was time to rephotograph this in the correct white balance. Continue reading White hydrangea

Purple aster


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The asters in the garden are blooming right now. I picked one of the larger ones to photograph indoors. In UV, this flower is not very UV-reflective, which is why it needed full power from the Quantum X2D in order to produce this image. I did not take any UVIVF images for this flower. Continue reading Purple aster

Pink delphinium (consolida)


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This is a pink delphinium which was growing in the back garden, and picked for photographing indoors. Images are stacked with Helicon Focus to increase depth of field. Continue reading Pink delphinium (consolida)

Delphinium Consolida Larkspur


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This is the first time I’ve seen a purple variant of the consolida ambigua in my garden. Hence I took the opportunity to bring it indoors to photograph – as I might not get another opportunity. Continue reading Delphinium Consolida Larkspur

Japanese anemone September charm


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These flowers have started blooming again in my garden. Hence I have picked one of the better looking ones to photograph indoors. I was particularly interested in seeing how it looked in UV-induced visible fluorescence (UVIVF). Continue reading Japanese anemone September charm

Lens test: various focal length


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As I have tested many of my 35mm F3.5 lenses for its UV-imaging capabilities, I thought I would also look at other focal length lenses which I own which were bought over the years. Some of these lenses are listed on some sites as UV-transmitting lenses (to varying degrees). The question is whether are they worthy to be on that list? Continue reading Lens test: various focal length

Rudbeckia rustic dwarf


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These are the last rudbeckia flowers to bloom this year. The petals are not entirely yellow, with some brownish streaks running through them. I have taken photos of them before but never any of very good quality. Hence I thought I would pick one of the better ones to shoot indoors. Continue reading Rudbeckia rustic dwarf

Winter Jasmine


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There seem to be quite a few winter jasmine flowers in bloom now. Does that mean it is winter already? Anyway, I thought I would pick one back to shoot indoors. I have photographed this flower before, but I thought it would be good to reshoot this in my indoor mini studio, particularly with my IDS2e filter. Continue reading Winter Jasmine