Search found 342 matches

by svalley
Sun Feb 25, 2024 10:07 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Dragonfly Portraits #2 - Cordulia shurtleffii
Replies: 6
Views: 295

Re: Dragonfly Portraits #2 - Cordulia shurtleffii

Indeed! An excellent series. Although highly visual predators, their various colors seem to be there for dragonfly-on-dragonfly interactions as they constantly move about and compete for territories, perching spots, and of course for mates. Some years ago, I was following a male dragonfly (I don't ...
by svalley
Fri Feb 23, 2024 6:45 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Dragonfly Portraits #2 - Cordulia shurtleffii
Replies: 6
Views: 295

Re: Dragonfly Portraits #2 - Cordulia shurtleffii images added

Something that keeps me shooting odonate portraits and reshooting some species is the realization that the eyes change colors almost daily in some species. And the patterns of pseudo-pupils and dark and light spots and streaks changes with age, but with the viewing angles also. Cordulia-shurtleffii-...
by svalley
Fri Feb 23, 2024 1:38 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Perla Marginata (Stonefly)
Replies: 11
Views: 463

Re: Perla Marginata (Stonefly)

Beautiful shots, well done!

Steve
by svalley
Wed Feb 21, 2024 1:40 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Dragonfly Portraits #2 - Cordulia shurtleffii
Replies: 6
Views: 295

Re: Dragonfly Portraits #2 - Cordulia shurtleffii - images added

In these anterior views we can clearly see the metallic patch on the frons and vertex. I know I'm judging based on human vision but it is difficult to imagine something that bright not functioning as a visual display which would mean it is selected for. I cannot help but wonder how it appears to oth...
by svalley
Tue Feb 20, 2024 5:27 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Dragonfly Portraits #2 - Cordulia shurtleffii
Replies: 6
Views: 295

Dragonfly Portraits #2 - Cordulia shurtleffii

American Emerald is a good common (English) name for this species that is found across North America in alpine lakes and northern states as well as Canada. It is the only species of genus Cordulia that occurs in North America and along with Somatochlora are grouped into Emeralds because of their ama...
by svalley
Thu Jan 11, 2024 11:03 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Dragonfly Portraits - Epitheca canis & spinigera images added
Replies: 10
Views: 892

Re: Dragonfly Portraits - Epitheca canis & spinigera images added 4

Epitheca spinigera mature male
Epitheca spinigera mature male


Epitheca spinigera mature male
Epitheca spinigera mature male


Epitheca spinigera mature male
Epitheca spinigera mature male


Epitheca spinigera mature male
Epitheca spinigera mature male
by svalley
Tue Jan 09, 2024 7:14 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Dragonfly Portraits - Epitheca canis & spinigera images added
Replies: 10
Views: 892

Re: Dragonfly Portraits - Epitheca canis & spinigera images added 3

The sapphire blue of the dorsal eyes of E. canis is striking. Something I noticed often is surface damage to the eyes near the antennae. It is more obvious on older specimens. I suspect it may be caused by the antennae striking the eye, caused by air turbulence during flight. 19Epitheca-canis-male-d...
by svalley
Mon Jan 08, 2024 3:14 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Dragonfly Portraits - Epitheca canis & spinigera images added
Replies: 10
Views: 892

Re: Dragonfly Portraits - Epitheca canis & spinigera images added 2

E. spinigera closely resembles E. canis in color patterns and hairyness. Note that all members of the sub-family Corduliidae have the posterior lobe of the eye that has ommatidia the are aimed directly behind, so the do have eyes on the back of their heads. 13Epitheca-spinigera-female-lat6-1024.jpg...
by svalley
Sun Jan 07, 2024 8:59 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Dragonfly Portraits - Epitheca canis & spinigera images added
Replies: 10
Views: 892

Re: Dragonfly Portraits - Epitheca canis & spinigera images added

Thanks for you kind words Guys! A lateral view displays just how hairy they are. 7Epitheca-canis-female-lat-1024.jpg 8Epitheca-canis-male-obl1-1024.jpg Minute changes in viewing angle can have fairly significant changes in eye color. 9Epitheca-canis-male-obl4-1024.jpg 10Epitheca-canis-male-obl5-1024...
by svalley
Sat Jan 06, 2024 5:16 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Dragonfly Portraits - Epitheca canis & spinigera images added
Replies: 10
Views: 892

Dragonfly Portraits - Epitheca canis & spinigera images added

I have been working on a project since I put together my own personal image stacking system in 2017, following retirement. After more than 15 years as an insect imaging specialist shooting mostly wood boring insects for the Oregon Deptaertment of Agriculture (ODA) I could finally concentrate on my f...
by svalley
Fri Jun 17, 2022 9:51 pm
Forum: Equipment Discussions
Topic: Imaging Computer Died
Replies: 9
Views: 1540

Re: Imaging Computer Died

StartAllBack is the easiest fix for all the UI changes in Windows 11. You can always add Winaero Tweaker if you need even more advanced features. I tried both of these and Winaero Tweaker took care of all my complaints with Windows Explorer except one. Any clicking with the mouse or my Wacom pen be...
by svalley
Fri Jun 17, 2022 8:59 am
Forum: Equipment Discussions
Topic: Imaging Computer Died
Replies: 9
Views: 1540

Re: Imaging Computer Died

I completed the rebuild and almost everything seems to be working but hidden settings in Windows 11 may still be lurking to cause chaos. I used the following components: ASUS ProArt Z690-Creator WiFi 6E LGA 1700 Motherboard ZOTAC Force RTX 3060 Twin Edge OC 12GB GDDR6 192-bit 15 Gbps PCIE 4.0 Graphi...
by svalley
Mon May 30, 2022 12:05 pm
Forum: Equipment Discussions
Topic: Imaging Computer Died
Replies: 9
Views: 1540

Re: Imaging Computer Died

I always did cold swapping which worked fine with Win 7, but was a horrible mess on Win 10. If I can return to swapping drives depending on whether I am using them or not with Win 11 that would be great! My guess is that fast boot and hibernate, which are Windows 10 default for shutdown, were not d...