Oblique Diatoms

[rnabholz]

A few more diatoms under oblique illumination using masks.

AO Series 4, 90x Apo, home made oblique masks, Canon 70D, Single frames. Some cleaning of the backgrounds on some images.

Buddulphia 109µm

Biddulphia Oblique 4714.JPG (88.17 KiB) Viewed 5292 times

Navicula 66µm

Navicula Oblique 4721.JPG (82.87 KiB) Viewed 5292 times

Nitschia 161µm

Nitzschia Oblique 4717.JPG (48.97 KiB) Viewed 5292 times

[Charles]

Nice images Rod!

I believe the first one is a Terpsinoë americana.

[75RR]

Very nice detail.
The ability of Oblique to provide its own contrast and so allow one to use 'most' of the NA of an objective
by opening the diaphragm up is a big plus.

[billbillt]

Very impressive!... Great photos...

BillT

[rnabholz]

Nice images Rod!

I believe the first one is a Terpsinoë americana.

Thanks Charles.

Darn it, I knew that! Just couldn't pull it up out of my increasingly unreliable memory banks.

Thanks for the correction, and sorry to all for the misidentification.

[rnabholz]

Very nice detail.
The ability of Oblique to provide its own contrast and so allow one to use 'most' of the NA of an objective
by opening the diaphragm up is a big plus.

Thanks 75. I am still surprised at how much can be resolved using this method. Very fun to play with.

Rod

[rnabholz]

Very impressive!... Great photos...

BillT

Thanks much Bill.

[KurtM]

Don't know what to say that I haven't already. They're lovely images, and I'll never get tired of seeing them!

[rnabholz]

Don't know what to say that I haven't already. They're lovely images, and I'll never get tired of seeing them!

Thanks Kurt. I do hope that folks enjoy them as much as I enjoy capturing and sharing them. It is always nice to get any response that confirms that is happening. Thank you.

Rod

[zzffnn]

I like your oblique images as much as your darkfield ones! Oblique provides a perspective not given by darkfield.

[hkv]

Impressive depth in these shots! They look fantastic!

[rnabholz]

I like your oblique images as much as your darkfield ones! Oblique provides a perspective not given by darkfield.

Well now I know that I have arrived as I know how much you like Darkfield. I agree about the different perspective. I get a much better sense of the construction and contours with Oblique than any other method I have available.

Thanks zz.

[rnabholz]

Impressive depth in these shots! They look fantastic!

Thank you very much hkv.

[billben74]

Only repeating others... but I love the depth you are getting here.

[gekko]

Superb, as always!!!