Thanks Larry, single frame with Tamron macro 90/2.8, handheld w/o focus
stack.
I do focus stack a lot with tripod for e.g. mushrooms but I don't master
this technique for living insects like dragonflies and butterflies where
you can only slowly creep in their direction and hope they don't fly
away. I almost never use artificial light for these. Usually there is
sufficient light otherwise they wouldn't fly.
Here is the wiki on the pseudopupil:
In the compound/eye/of invertebrates such as insects and crustaceans,
the pseudopupil appears as a/dark spot/which moves across the/eye/as the
animal is rotated. This occurs because the ommatidia that one observes
"head-on" (along their optical axes) absorb the incident light, while
those to one side reflect it.
Henk
Op 2020-05-10 om 21:44 schreef Larry Colen:
On May 9, 2020, at 9:18 AM, Henk Terhell <[email protected]> wrote:
This large red damselfly staring at me is fortunately not that large:
https://www.flickr.com/photos/mxer/49873110188/in/photostream/
Nice job. Single frame? The DoF isn’t razor thin, but it’s not super wide like
most stacked images.
Hexagonal shaped light? Or is that an artifact of the eyes, like the way the
dark spot always seems to be aimed right at the camera?
Henk
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