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-   -   To Emiel_Skyfreak: What does diafragm mean? (https://www.trekearth.com/forums/showthread.php?t=427255)

jtb1965 05-17-2007 03:17 AM

To Emiel_Skyfreak: What does diafragm mean?
 
Hi Emiel,

Thanks for the feedback; I find because of the amount of colour correction done that if I sharpen the image that it takes away the softness of the coral and makes the image appear very harsh. Due to currents and surges framing underwater is extremely difficult and most of the time I shoot away and then choose the best out of a few, oh and the fish don't like to sit still for very long either.
If can post the original if you like so you can appreciate the amount of colour correction, let me know?

What does diafragm mean?

Cheers
Jamie.

Emiel_Skyfreak 05-20-2007 02:21 AM

Re: To Emiel_Skyfreak: What does diafragm mean?
 
Other F number, I find it hard to explain to you. Maybe wikipedia can help you out :

http://en.wikipedia.org/wiki/Diaphragm_%28optics%29

got to go now. If you can post the original, yes, that would be nice.
I understand about the sharpness, photo's with a lot of small details (like yours has on the coral indeed) can become harsh easily with too much sharpening.
On that side, glad you did not put extra sharpness, but I still think a touch of contrast and maybe a bit sharpness could improve the photo a little more :)

Have a good weekend,
Greetings

jtb1965 05-21-2007 01:38 PM

Re: To Emiel_Skyfreak: What does diafragm mean?
 
Hi Emiel,

I posted the original if you are interested as a workshop.

Cheers Jamie.

Emiel_Skyfreak 05-22-2007 01:59 AM

Re: What does diafragm mean?
 
Well done the postprocessing, changes in colours are tremendous and it has not hurt the quality badly. Great job. Looks so clean this way, and to blue/green the other way. TFS the original.


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