www.photomacrography.net :: View topic - Geranium petal veins in frontlight & backlight
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 
Geranium petal veins in frontlight & backlight

 
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
rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 17417
Location: Richland, Washington State, USA

PostPosted: Mon Nov 07, 2011 3:42 pm    Post subject: Geranium petal veins in frontlight & backlight Reply with quote

This a small section of the petal of a geranium flower, backlighted.



Same section, front lighted.



Alternating between the two:



The entire petal:



I was intrigued that a large contribution to the apparent "darkness" of the veins is just that they're transparent. When lighted from the front, more light goes through the vein and escapes out the rear instead of bouncing back like it does in the white part of the petal. Towards the ends of the petals, the transparency combines with a red pigment to produce what I thought was an interesting effect.

--Rik

Technical details...

The first two images are about 0.96 mm across the field, shot with Nikon CFI 10X objective on 200 mm tube lens (like HERE) and cropped to an interesting section. These are stacks, 50 images at 0.010 mm, mostly Zerene Stacker DMap with a bit of retouching from PMax.

The animation is from the same stacks, with just a small crop around the edges to correct for an accidental shift when I shot them.

The final pair is with Raynox DCR 250 on the same telephoto, single shots at f/22 (no stacking).
Back to top
View user's profile Send private message Visit poster's website
snic320



Joined: 17 May 2011
Posts: 118

PostPosted: Tue Nov 08, 2011 5:12 am    Post subject: Reply with quote

Interesting!
Once again giving me more ideas..... Rolling Eyes
Wink
Back to top
View user's profile Send private message
DQE



Joined: 08 Jul 2008
Posts: 1653
Location: near Portland, Maine, USA

PostPosted: Tue Nov 08, 2011 4:08 pm    Post subject: Reply with quote

I think that frequenting this forum has caused me to see stacking opportunities where there may be none:

Is there any benefit from some sort of stack or blend of the front and back-illuminated photos?

As usual for photography, there are two basic criteria: aesthetic and informational. In terms of information, not everything that is naturally separate should be combined! But sometimes it helps.

As usual, just some early evening musings...
_________________
-Phil

"Diffraction never sleeps"
Back to top
View user's profile Send private message
Craig Gerard



Joined: 01 May 2010
Posts: 2877
Location: Australia

PostPosted: Tue Nov 08, 2011 4:41 pm    Post subject: Reply with quote

Inverting the images also provides an interesting result Cool


Craig
_________________
To use a classic quote from 'Antz' - "I almost know exactly what I'm doing!"
Back to top
View user's profile Send private message
madmacro



Joined: 19 Aug 2011
Posts: 92
Location: Central Singapore

PostPosted: Wed Nov 09, 2011 5:17 am    Post subject: Wow. Reply with quote

Beautiful color, love the pattern and color combination,
Could have miss all this if you have not share, thanks Rik.
Back to top
View user's profile Send private message
rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 17417
Location: Richland, Washington State, USA

PostPosted: Thu Nov 10, 2011 12:03 am    Post subject: Reply with quote

Thanks for stopping in, folks.

snic320, I'm definitely looking forward to seeing some of those ideas. Cool

Phil, what did you have in mind? There are definitely some interesting effects you can get by dynamically blending from one to the other. The hard flashing transition that I'm showing here is just what's easy to do with gif.

--Rik
Back to top
View user's profile Send private message Visit poster's website
Craig Gerard



Joined: 01 May 2010
Posts: 2877
Location: Australia

PostPosted: Thu Nov 10, 2011 1:56 am    Post subject: Reply with quote

PS layer blend modes....enjoy Smile


Craig
_________________
To use a classic quote from 'Antz' - "I almost know exactly what I'm doing!"
Back to top
View user's profile Send private message
rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 17417
Location: Richland, Washington State, USA

PostPosted: Thu Nov 10, 2011 1:59 am    Post subject: Reply with quote

Craig, feel free to post some examples of what you're alluding to.

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



Joined: 05 Aug 2006
Posts: 2931
Location: North East of England

PostPosted: Sat Nov 12, 2011 6:47 am    Post subject: Reply with quote

Very very cool!
_________________
Canon 30D | Canon IXUS 265HS | Cosina 100mm f3.5 macro | EF 75-300 f4.5-5.6 USM III | EF 50 f1.8 II | Slik 88 tripod | XSP-13A Student monocular scope
Back to top
View user's profile Send private message Visit poster's website MSN Messenger
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