The photographer's best weapon...

For you all to see what you look at the PN beautiful pictures with!

This is a picture of the central part of an average human right

retina. The colors are real, the human retina having an orange-red

color (you usually see this color on your pictures, when you get "red

eyes". This is due to the reflection of the flash on the retina,

bouncing back in the lens when the flash and the lens are too close

to each other...). The pale spot is the optic nerve, usually mesuring

around 1,5 millimeters, and containing as much as 1,2 million nerve

fibers, transmitting the image to the visual cortex of the brain, at

the back of the head. The slightly darker spot is the fovea, where

the retinal cells are at their highest concentration (it's what you

use to read right now...), making this area the most precise area of

the whole retina. You see the normal vessels of the retina too,

converging, for some of them, towards the fovea. The rest of the

retina as a lower precision to details, but higher capacity of

detecting movements.

 

I hope you liked having some informations about your best friend in

photography! Feel free to E-mail questions if you want!

 

Gilbert Fortier

Tu es ophtalmologiste?

Incredible picture! As I see PN photographers are moving to new challenges and they achieve them!

Gilbert, I am just amazed how you made it. Very original with great detail. I may wish the light source a litte more subtle to make it super one.

Gilbert, really enjoy the information you gave to me. Many thanks!

In addition to the scientific interest, it's a good abstract picture!

Salut Gilbert,

 

Beau fond d'oeil... Suite ࠴a question pour avoir des photos "crisp and sharp", j'utilise le mode de capture "raw" pour avoir 12 bits par couleur, plus de dynamic ranger et plus de flexibilit頳ur l'exposition et la balance du blanc. Ensuite, je convertis le sRGB en Adobe RGB 1998 ce qui donne plus de couleurs et de saturation (je pense qu'avec la 10D tu as le choix directement sur la cam鲡) Finalement j'ajoute un peu de "sharpness" mais pas trop. C'est la recette du colonel...

 

Surveille ton e-mail.

 

GUY

I picked up on this picture immediately as well as a prior commenter.... are you an optometrist or ophthalmologist? I am an optometrist and am also interested in photography. I haven't submitted much here but have been playing with my NIKON D300 since I purchased it this past Aug. I really liked your portfolio. You have some wonderful images. Good luck in all you do, and I hope that you continue with your photography as you are quite talented.