Polystichum munitum (Swordfern) sporangia

Charles Krebs · Post by **Charles Krebs** » Sat Jul 29, 2017 6:01 pm

I saw this fern along a path yesterday and the sporangia were really "loaded". A few members here have posted incredible auto-fluorescence shots of similar subjects so I was anticipating quite a colorful show when I illuminated them with UV. Nothing! (well very little

) . Perhaps this effect is highly variable with different species or growing conditions. I may need to look at it again... I see Frank Fox used blue excitation, and Rogelio had quite long exposures, so perhaps it is simply very faint. In any event, I took three stacks with "regular" light. Still an interesting subject.

10X, 20X and 50X M Plan Fluorite Olympus .

Smokedaddy · Post by **Smokedaddy** » Sat Jul 29, 2017 10:15 pm

Beautiful, I didn't even know they existed. <g>

hkv · Post by **hkv** » Sat Jul 29, 2017 11:59 pm

Beautiful results! I have noticed the same. Sometimes things fluoresce and sometime not. I have very nice shoots of copepods shining bright in blue under UW-light. The next time, nothing. I have not figured out why.

JH · Post by JH » Sun Jul 30, 2017 6:40 am

Nice!

I do not see any trace of CA in your pictures. My Nikon infinity fluors have a little more CA than I hoped. The only Olympus lens that I have is a water dipping lens LUMplanFL 20x na 0.5. In my opinion that one does not suffer from to much CA. I would appreciate your opinion, maybe in another thread, about the quality of the Olympus M plan fluorite lenses.

Best Regards Jörgen Hellberg

Sumguy01 · Post by **Sumguy01** » Sun Jul 30, 2017 8:24 am

Very nice.
Thanks for sharing.

billporter1456 · Post by **billporter1456** » Sun Jul 30, 2017 4:29 pm

Very nice and completely new to me.

Johann · Post by **Johann** » Mon Jul 31, 2017 12:00 am

Great images - lighting is still amazing

kit1980 · Post by **kit1980** » Mon Jul 31, 2017 12:52 am

Amazing photos!

Jacek · Post by **Jacek** » Mon Jul 31, 2017 9:15 am

Very nice

Marek Mis · Post by **Marek Mis** » Wed Aug 16, 2017 1:17 am

Outstanding images !

Marek

vasselle · Post by **vasselle** » Thu Aug 17, 2017 6:59 am

Superbe images
Cordialement seb

carlos.uruguay · Post by **carlos.uruguay** » Thu Aug 17, 2017 3:20 pm

Wooowww!!!! super!

Beatsy · Post by **Beatsy** » Fri Aug 18, 2017 12:10 pm

Wonderful images as always Charles! Since seeing the amazing sporangia shots on this site, I can't pass a fern without turning over a few leaves to find some of my own to shoot. But to date, they've always been "past it" and just a tangled fluffy mess. No fair