Triceratium diatom from Pensacola, USA

[MicroBob]

Hi together,
after removing a little hiccup from my diatom mounting process I made some slides again. Recently I bought a battleship grey Bausch&Lomb Dynazoom microscope on german ebay, a rarity here. To see whether it will be usable again I serviced the top end. Some surfaces didn't look good at all but everything cleaned up well. I might have introduced a little misalignment into the zoom group as the parcentricity of the objectives is not perfect. But apart from that all works well.
Here a test image with the 100:1 achromat. A Triceratium diatom where the fine pores inside the bigger pores were clearly visible. Slight oblique lighting. This is the green channel only, histogram rearranged, unsharp masked.

Bob

[75RR]

Nice detail!

This is the green channel only, histogram rearranged, unsharp masked.

Are you using the green channel instead of converting to B & W or as a short cut for demonstration purposes?

For those of you not familiar with the Dynazoom: https://www.quekett.org/resources/artic ... e/dynazoom

[Hobbyst46]

Good photo, Bob !

[MicroBob]

Hi Glen,
the photo was made with an achromat so the colour channels drift apart towards the border. I prefer to use the best colour channel, usually the green one, over just making it B W.

[KurtM]

Good photo, Bob !

Indeed, very nice!

[Wes]

Nice photo! Would be interesting to see a stack of that diatom.

[Charles]

That is very nice! Now you need to stack it.

[MicroBob]

Hi together,
normaly I would have taken more images to at least try stacking them. But the Dynazoom has less than perfect eyepiece tubes that don't support my camera well. So I opted for a single shot of the most interesting focus position.

Bob