Search found 18374 matches

by rjlittlefield
Thu Aug 05, 2021 3:51 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Poison Hemlock Moth (Agonopterix alstroemeriana)
Replies: 3
Views: 86

Re: Poison Hemlock Moth (Agonopterix alstroemeriana)

Thanks for the comments, guys. Appears to be very common (sorry Rik!); 50 or so images on BugGuide. European, introduced to NA Yeah, most of the stuff that strikes me as new and interesting turns out to be well known and common somewhere else. I take solace in noticing that these things didn't even ...
by rjlittlefield
Thu Aug 05, 2021 3:12 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: jumping spider
Replies: 2
Views: 27

Re: jumping spider

Nice!

Also unusual -- notably the absence of sharp reflections of light sources in the eyes.

Is that a matter of retouching or some special illumination?

--Rik
by rjlittlefield
Wed Aug 04, 2021 10:24 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Poison Hemlock Moth (Agonopterix alstroemeriana)
Replies: 3
Views: 86

Poison Hemlock Moth (Agonopterix alstroemeriana)

https://janrik.net/MiscSubj/2021/PoisonHemlockMoth_20210804/2021-08-04-17.34.51-ZS-PMax_croppedSmall.jpg This small moth appeared in my kitchen a few days ago. My wife asked me to identify it, so I dutifully hauled out my copy of Moths of Western North America , hoping that I might find something v...
by rjlittlefield
Wed Aug 04, 2021 3:06 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Zerene settings question
Replies: 21
Views: 17005

Re: Zerene settings question

Starting at one end versus the other does not have much effect on distortion. This is because with focus stacks, each image is registered by comparing only against its immediate predecessor in the stack, so starting at different ends still results in comparing the same pairs of images. What will be ...
by rjlittlefield
Tue Aug 03, 2021 11:24 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Zerene settings question
Replies: 21
Views: 17005

Re: Zerene settings question

The master frame is the first one in the list at the time that the frame-by-frame stacking process begins. Before that, the entire order of the list may be reversed, if both Scale and "Automatic order" are selected and ZS decides that reversal is needed to start at the narrow end. This decision is m...
by rjlittlefield
Sun Aug 01, 2021 6:48 pm
Forum: Equipment Discussions
Topic: 42 or 58 diameter tubes
Replies: 15
Views: 335

Re: 42 or 58 diameter tubes

Now I am curious...

A string of 58 mm tubes with screw threads should be extremely stiff. So, do your current tubes have floppy bayonet connectors, or is something else going on?

--Rik
by rjlittlefield
Sun Aug 01, 2021 6:42 pm
Forum: Beginners Macro
Topic: Need help making a diffuser
Replies: 2
Views: 113

Re: Need help making a diffuser

smimo, perhaps you have already read some of orionmystery's articles about concave diffusers. If not, then I suggest to do some internet searches on "orionmystery concave diffuser", and start reading. Those articles will perhaps complement some of the excellent material in Thomas Shahan's video. (Th...
by rjlittlefield
Sun Aug 01, 2021 3:45 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Diastocera wallichi tonkinensis
Replies: 7
Views: 178

Re: Diastocera wallichi tonkinensis

Very nice!

In the full size version, it looks like the tip of the beetle's left mandible is tucked behind the leg.

Is that properly rendered, or is there some sort of "transparent foreground" artifact?

--Rik
by rjlittlefield
Sun Aug 01, 2021 10:23 am
Forum: Administrator's Appreciation Gallery...Photography Through the Microscope
Topic: Moss sporangium in autofluorescent illumination (by sushidelic)
Replies: 0
Views: 22

Moss sporangium in autofluorescent illumination (by sushidelic)

The following image represents the winning thread for the August 2021 award for Micro. It was originally posted at https://www.photomacrography.net/forum/viewtopic.php?t=43724 (image #3 of that thread). We're reproducing the image here, separately, as part of our procedure to provide clarity when th...
by rjlittlefield
Sun Aug 01, 2021 10:20 am
Forum: Administrator's Appreciation Gallery...Macro and Close-up Images
Topic: Large red-eyed damseflies, pair laying eggs (Troels)
Replies: 0
Views: 17

Large red-eyed damseflies, pair laying eggs (Troels)

The following image represents the winning thread for the August 2021 award for Macro. It was originally posted at https://www.photomacrography.net/forum/viewtopic.php?t=43802 (image #2). We're reproducing the image here, separately, as part of our procedure to provide clarity when the front page sh...
by rjlittlefield
Sun Aug 01, 2021 10:17 am
Forum: Photography Through the Microscope
Topic: Administrators Appreciation Award Winners for August 2021
Replies: 0
Views: 21

Administrators Appreciation Award Winners for August 2021

We are pleased to announce this month's winners of the Administrators Appreciation Awards! :D In the Photomacrography Forums, we honor Troels Holm for his damseflies laying eggs, image #2 at https://www.photomacrography.net/forum/viewtopic.php?t=43802 . In the Photomicrography Forum, we honor Michae...
by rjlittlefield
Sun Aug 01, 2021 10:16 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Administrators Appreciation Award Winners for August 2021
Replies: 0
Views: 13

Administrators Appreciation Award Winners for August 2021

We are pleased to announce this month's winners of the Administrators Appreciation Awards! :D In the Photomacrography Forums, we honor Troels Holm for his damseflies laying eggs, image #2 at https://www.photomacrography.net/forum/viewtopic.php?t=43802 . In the Photomicrography Forum, we honor Michae...
by rjlittlefield
Sun Aug 01, 2021 10:15 am
Forum: Nature Photography -- Macro and Close-up
Topic: Administrators Appreciation Award Winners for August 2021
Replies: 0
Views: 13

Administrators Appreciation Award Winners for August 2021

We are pleased to announce this month's winners of the Administrators Appreciation Awards! :D In the Photomacrography Forums, we honor Troels Holm for his damseflies laying eggs, image #2 at https://www.photomacrography.net/forum/viewtopic.php?t=43802 . In the Photomicrography Forum, we honor Michae...
by rjlittlefield
Wed Jul 28, 2021 10:23 pm
Forum: Equipment Discussions
Topic: A7r4 pixel shift. Rather a resolution eye-opener
Replies: 31
Views: 1374

Re: A7r4 pixel shift. Rather a resolution eye-opener

I get a "404 page not found" error on the second one.

--Rik