www.photomacrography.net :: View topic - Polypodium sporangia
www.photomacrography.net Forum Index
An online community dedicated to the practices of photomacrography, close-up and macro photography, and photomicrography.
Photomacrography Front Page Amateurmicrography Front Page
Old Forums/Galleries
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Polypodium sporangia

 
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Technical and Studio Photography -- Macro and Close-up
View previous topic :: View next topic  
Author Message
Pau
Site Admin


Joined: 20 Jan 2010
Posts: 4840
Location: Valencia, Spain

PostPosted: Mon Mar 22, 2010 3:11 pm    Post subject: Polypodium sporangia Reply with quote

Polypodium cambricum, a common fern in northern Spain, but rare here, in the mediterranean dry east where I live.

The leaf surface is very reflective. To avoid reflections, the illuminantion was done whith cross polarized light, both polarizers at the end of two fiber optic light guides and the analyzer behind the macro lens.
First image of inmature sorus, I like its transparency, second one of mature sorus. I was surprised to see the epidermical cells and stoma at this moderate magnification.

Zeiss Luminar 40mm f4.5 on Pentax M42 bellows. EOS 50D. Focus stack whith microscope stage, CombineZP 30 images




Many thaks to all the skilled photographers in this forums, in special to Charles Krebs. This is the best school of macro and micro photography I can imagine.
_________________
Pau
Back to top
View user's profile Send private message
rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 20079
Location: Richland, Washington State, USA

PostPosted: Mon Mar 22, 2010 3:52 pm    Post subject: Reply with quote

Very nice!

I think this is the first use of cross-polarized illumination with fiber optics that has been shown here. Did you have any diffusion on the fiber bundles behind the polarizers, or were these naked bundles?

By the way, welcome aboard! Very Happy

--Rik
Back to top
View user's profile Send private message Visit poster's website
Pau
Site Admin


Joined: 20 Jan 2010
Posts: 4840
Location: Valencia, Spain

PostPosted: Mon Mar 22, 2010 4:07 pm    Post subject: Reply with quote

Rik,
I used naked fiberoptics ends, no lenses or diffusers, I plan to try it later, when I had the time.
Thanks for your kind words.
_________________
Pau
Back to top
View user's profile Send private message
PaulFurman



Joined: 24 Oct 2009
Posts: 595
Location: SF, CA, USA

PostPosted: Tue Mar 23, 2010 12:17 am    Post subject: Reply with quote

Pau,

You reminded me that I left an unfinished stack of an almost identical scene of a California Polypody, which I've now finished. I don't recall all the specifics but you can see I had some pretty bad highlights to deal with, using no polarized light.

Paul
Back to top
View user's profile Send private message Visit poster's website
Jordialcoi



Joined: 24 Mar 2010
Posts: 1
Location: East Spain

PostPosted: Thu Mar 25, 2010 12:28 pm    Post subject: Espectacular !!!!!! Reply with quote

Ja mateix m'estàs explicant com fas açò. Increïble.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Technical and Studio Photography -- Macro and Close-up All times are GMT - 7 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group