I use Canon R7 tethered to either an M1 Mac or a Windows laptop, using Canon EOS Utility 3 for most functions: live view, image uploading typically after external shutter triggered by wire from a focus rail, and some camera controls such as exposure time and color balance. Some camera controls such ...

Some of the egg clusters that I moved indoors have hatched. Here's a view by cell phone through a stereo scope: https://janrik.net/MiscSubj/2024/YellowEggsOnLocustBark_20240420/PXL_20240422_061409108.jpg To me these look like lady beetle larvae, which would make sense given the location, time of yea...

It is true that 'in' focus items are not effected by the apodization BUT (what I believe is a major problem with photography) too many people forget that depth of field is a giant myth. There is one and only one plane 'in' focus. Depth of field is based on an assumption that we can be slightly out ...

Laowa makes good lenses but dropped this one and sold remaining supplies at about half the original list. I am confused about availability. At this moment https://www.venuslens.net/product/laowa-105mm-f2/ is showing "in stock" with a price of "$419.00 – $699.00". I'm also seeing in stock at B&H Pho...

Thanks for the info and link. That description also notes that locust borer eggs are laid in late summer and hatch in the fall, not consistent with these in spring. I searched the tree more carefully yesterday and found four smaller clusters that were exposed on flat bark so I could collect them wit...

I can't recall if I've ever pointed you here: https://www.photomacrography.net/forum/viewtopic.php?t=19582 , "False color and detail/DOF from shiny metal". It's a long thread that discusses some of the unexpected effects caused by shiny subjects and narrow-angle light sources. The short story is tha...

I was actually initially a bit more disappointed that I wasn't seeing some interesting colors, I was hoping it might do something "interesting" heh. Large NA is not a friend of structural colors. A quick explanation is that the wide entrance cone is looking at each point on the subject from a bunch...

I was kinda surprised by how dark it was when illuminated with flash at any angle I'm guessing that "any angle" refers to the flash, not the material. And then I'm wondering if what you're seeing is essentially the "black hole" that occurs when a lens looks at a mirror surface and sees only the ref...

Crossed-eye stereo: https://janrik.net/MiscSubj/2024/YellowEggsOnLocustBark_20240420/IMG_4397-4398-stereo_cropSmall.jpg This is cha-cha stereo, one shot for each side, standing on a ladder with hands braced against the tree. Camera was an ancient Canon A710 in Av mode at f/8, manual closest focus wi...

I have high hopes that eventually someone will construct stacking software that is either perfect or at least appears to be. I expect that such software will work like this: Run some basic stacking algorithm, similar to what we have today. Use the results to construct a model of the 3D structure and...

Very interesting thread, about the last stereo pair i read external muscle and to me (pretty ignorant in insects weirdness) it seems a really strange feature, are you sure abut being a true muscle? Pretty sure, yes. There are numerous articles in the scientific literature that have studied the stru...

I was looking through the criteria for using larger lenses (e.g, telephoto or zoom) to achieve closeup images for this site and didn't really find any. Any thoughts on that might be helpful. There are no criteria based on the equipment used, only the size of the area that is photographed. If somebo...

Now I have to figure out how large extension steps are required for focus bracketing as I assume the standard calculators are only valid if one moves the hole rig but not if one uses back focus That's correct and the adjustment is simple: the back focus step is larger by a factor of magnification s...

This is another image of the external muscle. (See discussion at https://www.photomacrography.net/forum/viewtopic.php?p=294543#p294543 and surrounding.) Crossed-eye stereo on top, parallel on bottom: https://janrik.net/MiscSubj/2024/KitchenAnt_20240122/stereo-029458-029677_000_small.jpg Shot with Ni...

I prepared my subject by gluing a small piece of wing to a flat surface. Then I let it dry under pressure from the top through a microscope slide. After this I would expect a flat wing. However, it may be that the wing (or the glue) has been deformed by the LED lighting. I am reminded that wings ca...