Coralville Lake Darkfield

[rnabholz]

More from Coralville Lake in Darkfield this time.

AO 10, Ortho Illuminator, 100x Plan Achro Iris Oil, 1096B Toric Darkfield Condenser, Canon 70D Single Frames. Grayscale were captured under green filtration and converted in post processing.

Duo - Gomphonema and Diatoma Both approx 57µm

Coralville Lake Duo 4484.JPG (52.34 KiB) Viewed 5577 times

Duo - Gomphonema and Diatoma Both approx 57µm

Coralville Lake Duo 4486.JPG (67.03 KiB) Viewed 5577 times

Unidentified Girdle View 60µm

Coralville Lake Girdle View 4497.JPG (63.73 KiB) Viewed 5577 times

Unidentified Girdle View 60µm

Coralville Lake Girdle View 4499.JPG (63.92 KiB) Viewed 5577 times

Cymbella 98µm

Coralville Lake Cymbella 4509.JPG (53.48 KiB) Viewed 5577 times

[rnabholz]

More

Cymbella 98µm

Coralville Lake Cymbella 4510.JPG (42.88 KiB) Viewed 5576 times

Ctenophora 92µm

Coralville Lake Ctenophora 4462.JPG (51.54 KiB) Viewed 5576 times

Ctenophora 92µm

Coralville Lake Ctenophora 4463.JPG (143.5 KiB) Viewed 5576 times

Gomphonema 54µm

Coralville Lake Gomphonema 4470.JPG (54.97 KiB) Viewed 5576 times

Gomphonema 54µm

Coralville Lake Gomphonema 4474.JPG (40.74 KiB) Viewed 5576 times

[rnabholz]

More

Diatoma 60µm

Coralville Lake Diatoma 4467.JPG (41.17 KiB) Viewed 5575 times

Diatoma 60µm

Coralville Lake Diatoma 4469.JPG (31.74 KiB) Viewed 5575 times

And finally, evidence that I need to fire my Lab Assistant as finding this marine form in my inland river sample is a pretty good indication somebody is doing a shoddy job of getting the dishes clean...... ;^)

Pleurosira 76µm

Coralville Lake Pleurosira 4480.JPG (73.61 KiB) Viewed 5575 times

Pleurosira 76µm

Coralville Lake Pleurosira 4481.JPG (60.29 KiB) Viewed 5575 times

[kit1980]

Nice!

[PeteM]

Spectacular images, Rod.

[zzffnn]

Very nice, Rod!

[rnabholz]

Thanks Kit, Pete and zz

[KurtM]

That DF scope of yours is seriously cool. Every time you post images like these I have pangs of envy. One of these days...

[rnabholz]

That DF scope of yours is seriously cool. Every time you post images like these I have pangs of envy. One of these days...

Thanks Kurt.

Darkfield can be really beautiful and revealing and within the easy reach of most using masks or relatively inexpensive DF condensers.

Come to the Dark Side....

[KurtM]

Oh, I do DF often enough, but only in lower powers where masks work. I had a DF condenser for my old Spencer Model 13 (160 mm TL), and know how lovely "real" DF looks, but I still never went on up to 100x lenses with it. Having an entire stand dedicated to it is here it's at, and now I'm out of room!

[exmarine]

Great images and thanks for naming the individual diatoms it makes learning simple. Thanks.

[KurtM]

Any advice on what makes remembering simple, once the names have been learned??

[rnabholz]

Oh, I do DF often enough, but only in lower powers where masks work. I had a DF condenser for my old Spencer Model 13 (160 mm TL), and know how lovely "real" DF looks, but I still never went on up to 100x lenses with it. Having an entire stand dedicated to it is here it's at, and now I'm out of room!

Just lay a piece of plywood over the kitchen sink, and voila, a new scope station! You are welcome. ;^)

[rnabholz]

Great images and thanks for naming the individual diatoms it makes learning simple. Thanks.

Thanks exmarine, glad you like them.

Rod

[einman]

Very Nice

[rnabholz]

Thanks einman