Hello Robert, Just another confirmation - I saw your earlier thread about the 6.7X magnification you got when setting up the ITL200 following Thorlabs' diagrams, and ran a test this afternoon using this tube lens in both orientations with a 10X Mitty. I got 9.9X using it in both directions. This may...

That's a beautiful object!

I just ordered a couple, but there were still six left ; )

https://www.ebay.com/itm/Cineo-Lighting ... 2381196389?

Nice and effective! How do you illuminate the mirror?, maybe with a ring of light from the rear of the subject (what's called a Lieberkühn reflector)? Thanks Pau. I used a pair of Novoflex Macrolight Plus lights, with Vivitar 183 flashes. See here Nice picture and thanks for the idea! I like the bl...

A quick and easy “dark field” adapter made from a solar cigarette lighter, readily available on eBay for just a few dollars (see for example here ). I removed the metal coil, and cut a plastic vial to reach the position at which the end of the cigarette would rest in the coil (the focus of the parab...

Amazing images!

Beautiful image!

Please see here: http://www.photomacrography.net/forum/v ... hp?t=12143

David

One reason that I wanted to start with the 600 mm f/4 lens is that after extension I will still only be at an effective f-stop of f/8 at 1X. The big process lenses are typically f/9 to start with which will take me to f/18 effective so I worry about diffraction. That said, I bought a 610mm apo nikk...

Nice - I really like the color palette! And a 600 image stack needing no retouching is an enviable accomplishment.

David

Thanks Olympusman and Sumguy01!

zzffnn wrote:Thank you very much, David. I found some images.

Cheers,
Fan

Thanks for letting me know Fan, and good luck locating some eggs!

David

The close up lenses are all very fast - for example the Raynox DCR5320AB has a focal length in this test of 192 mm. It is 72mm in diameter so that is about an f/2.7 to f/2.8 lens. Thanks for doing this huge amount of work, and sharing your results! Could you please confirm your measured focal lengt...

Hello zzffnn, The adult butterfly in the image is actually nectaring on Gregg's Mistflower, Eupatorium greggii , but the eggs are laid on the underside of the leaves of various Tragia species. These are commonly called Noseburn because of their stinging trichomes, so handle with care! :wink: It's a ...

Thanks for your comments!

David

Although these butterflies are common in south Texas, they appear here every few years when their local hostplant, a species of Tragia , flourishes after a good summer rain. This is a quick stack of an egg at about 10X - I hope to collect some more while the weather is still warm. http://www.photoma...