Oblique lighting

[Radazz]

Just got some new stops on eBay, and this one seems to work best.
Not sure what this little beastie is, any guesses?



Jim

[JimT]

Hard to tell. What magnification did you use and how big was it. My best guess is a paranema but as I said, "Hard to tell."

[mrsonchus]

Can't begin to help with an ID I'm afraid, but what a lovely crisp video with superbly dark field - very nice indeed.

[gekko]

Very nice image (can't tell about critter), but, as John said, it is darkfield.

[billben74]

Darkfield it appears. It is also a reallly nice vid.

[Radazz]

Somewhat different from a regular DF stop, this one has a spot and a ring around it.

[mrsonchus]

Sounds like the 'circular oblique' version perhaps. 'COL' maybe?

[Radazz]

You're right, John, COL
Number 6

[Radazz]

Hard to tell. What magnification did you use and how big was it. My best guess is a paranema but as I said, "Hard to tell."

This was the 10 x brightfield objective. Camera is about 20x.

I've seen a YouTube video of this little elephant nosed guy, but I've been totally frustrated trying to find a reference. Sorry,

[zzffnn]

I have the exact set of COL filters. #6 is way too big to produce oblique / COL for 10x objective. In OP's video, it produced darkfield.

[lorez]

This was the 10 x brightfield objective. Camera is about 20x.

I am confused as to how you determine the camera is about 20X.

lorez

[Radazz]

Camera is roughly equivalent to a 40x occular. With a 0.5x reduction snoot, about 20x.
20 x 10 (10x occular) =~200x magnification

[Peter]

Not sure what this little beastie is, any guesses?

Jim

Hi Jim,
I will tentatively suggest lacrymaria olor.
Hope this helps.
Peter.

[Radazz]

I will tentatively suggest lacrymaria olor.

Thanks Peter, I think you got it.
Jim