Hello Steve, Excellent photo, great lens! BTW, can you tell me more about your 65W COB LED? Best, ADi Thanks ADi, It's an Amaran 60D, used "naked" (no reflector). Plenty of info available online, it's a very popular little lamp. There are many others like it, but I particularly like this one for it...

Here's a 100-image stack shot with a Nikon TU PlanAPO 50/0.8 on a Raynox DCR 150 tube lens (FL 208mm). The image is a heavy crop of about 1:2.5 (1 pixel on screen = 2.5 pixels from the FF source image). The objective working distance is 2mm which usually makes lighting somewhat "challenging", but I ...

I can't remember when we last had a rain-free day. It seems like months ago! The ground is so soggy I haven't been able to mow the lawns at all yet (this year). The grass certainly likes it though - it flowered already. Stacked with a 5x Mitty on a Raynox DCR250 (3.125x). No retouching. The square c...

That's a nice vibrant set. I really like the close-ups that show individual cells. I put the cut end of stems in a small (3-5ml) centrifuge tube and stuff it with wet paper towel. That seems to stop the wilting, but growing (or re-hydrating) can then present a problem instead. On the bright side tho...

Sadly, it is true.

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These are remarkable. Did you use 365nm light? Thanks Lou Nope, just an Amaran 60d - a compact 65W daylight COB studio lamp - shining directly into the back of my old dome/ping-pong ball diffuser. And a little bit of frequency separation sharpening in post Diffuser is described here https://www.pho...

Thanks both, kinda. Demanding beggars, ain'tcha!? :D So now I have to admit that the forms were more widely separated in reality and I moved them closer together in post. :oops: <blush> I also note "tilted back 35-40 degrees", so of course I would love to see stereo. <insert begging puppy emoticon h...

A pleasing outcome from a test shot (after significant modding of my macro setup - another story). Shot with a 20x Mitutoyo M Plan APO on a Raynox DCR250 for 12.5x on sensor. I was really surprised to get such clear detail from this, albeit with very heavy cropping. The diatoms were stuck face up on...

... Their high precision 1.5 ones which has the right thickness, does not seem to come in small sizes, 10 mm is the smallest https://www.marienfeld-superior.com/precision-cover-glasses-thickness-no-1-5h-tol-5-m.html Can you trim them yourself without shattering them I wonder? Yes, a light scoring w...

That is, diatoms still buried in a tiny crumb of diatomite from Newport Bay, CA SMB00017--pmn.jpg Here's a close up focus stack from the centre of the crumb. Magnification 12.5x on sensor (20x Mitty on 125mm Raynox DCR 250). FoV covers about 1.6mm by 1.4mm. diatomite closeup - pmn.jpg Full resolutio...

Tragic news. I only ever interacted with Robert on this forum, but will still remember him as a friend. Always so affable and generous with his knowledge. He will be sorely missed. Beats.

Spectacular, as always. These images are very useful in helping "interpret" what I see optically too. The inside/outside differences in Didymosphenia (aka Rock Snot) are near impossible to separate with transmitted illumination, even using UV (you see both overlaid). But after seeing the SEM version...

...I have several brands of clean cotton pads and such that I sometimes use instead of Qtips, but I still check for residues since I found some that claim they leave no residues or lint or anything but they really did. Agreed! "Lint and residue free" too often means you simply weren't charged for t...

Salt helps to break down grease. A key constituent of many old (traditional) grease removal methods. It has caused a few to hyperventilate on seeing it in the recipe though :D But if applied as per the instructions - dampen (don't wet) a cloth and clean with that, then polish with a separate dry clo...

... another stuff what works excellent on fatty fingerprints is ROR Residual Oil Remover . It is water based and does not harm plastics like acetone. (Be very careful with acetone, it can instantly ruin plastic because it is vary strong solvent and you don't want to find your acetone wetted cleanin...