Camera: Canon 1D Mk III
Exposure: 1/8
Aperture: N/A (Microscope attachment)
Focal Length: 63X (Microscope attachment)
ISO: 800
A focus stacked image of a hobo spider (Tegenaria agrestis) found in casa Jones. Below is a different angle/lighting conditions of the same animal.
That focus stacking gives some amazing DOF on this. Great image!
I always know better than to click on links, especially from photographers, that reference spiders ;)
An actual hobo spider, eh? (a bit dangerous, aren’t they?) I’ve seen spiders that are very very similar looking but I’m not sure I’ve seen the real deal.
Either way, I may have to give focus stacking a go here with my macro lens… though probably not with a hobo spider ;)
Yeah, focus stacking is a riot of fun.
As far as working with the hobo spider, yeah… they *are* poisonous and the bite is horrible. I cooled this guy down in the refrigerator for a couple of hours, then put him in a petri dish in the lab on top of a iced gel pack. All handling was done with gloves.
When we were done, his reward for participating in the photo-shoot was getting released in the foothills behind the medical center.
I believe this is a grass spider. Here is a guide to help distinguish from similar spiders: https://extension.usu.edu/files/publications/factsheet/hobo-spiders-key07-08.pdf
Also here is just one source to clear the hobo’s name concerning medical significance, from the Journal of Medical Entomology: http://www.bioone.org/doi/abs/10.1603/ME09224
Dunno… We looked at the anatomy pretty closely and got external confirmation from an entomologist that they thought this was a hobo…