Canreef Aquatics Bulletin Board

Canreef Aquatics Bulletin Board (http://www.canreef.com/vbulletin/index.php)
-   Photography (http://www.canreef.com/vbulletin/forumdisplay.php?f=135)
-   -   Go (http://www.canreef.com/vbulletin/showthread.php?t=56632)

Coleus 10-07-2009 06:48 PM

Go
 
I have Canon EOS Rebel XS but can't not take picture from my tank very well.

It is bow front tank, anyone know what to do to improve the shot?

Thanks
________
VOLCANO VAPORIZERS

whatcaneyedo 10-07-2009 07:03 PM

I bought a submersible housing for my Canon PowerShot so that I can just put the camera right into the tank for good closeup pictures. A ziplock bag might even work but thats taking some risk.

sphelps 10-07-2009 08:48 PM

Only way is to go top down or through the side. You have to have the lens perfectly perpendicular to the glass to get a good clear macro. Unfortunately with curved glass this is impossible, which is why most people into photography don't by bow fronts or other curved glass tanks.

Best solution is make a top down camera box, it's a simple DIY project but don't use a Ziploc bag as I assure you this won't work.

Coleus 10-08-2009 01:30 AM

Go
 
thank you for all comments
________
DREAMYXXDIVA18

Carmen 10-08-2009 01:44 AM

Can buy a topdown viewer from RedCoral that works great for topdown shots.:mrgreen:

Snaz 10-08-2009 02:29 AM

Just curious but couldn't a warped image be shaped flat with some good post processing? It's just geometry right?

sphelps 10-08-2009 03:37 AM

Quote:

Originally Posted by Snaz (Post 453315)
Just curious but couldn't a warped image be shaped flat with some good post processing? It's just geometry right?

Nope

VFX 10-08-2009 04:46 AM

Quote:

Originally Posted by Snaz (Post 453315)
Just curious but couldn't a warped image be shaped flat with some good post processing? It's just geometry right?

You're right but it's not that simple.

We do this all the time in my industry (flattening lens distortion, warping CG images to fit existing lens distortion, creating 'clean plates' etc.)

Depends on how much distortion you have. I'm guessing you wont have the image info needed to 'unwrap' the distortion from a bow front, but you could take 2 or more images & then stitch them together (with a little warping into shape if needed).

.

Carmen 10-08-2009 01:29 PM

Or you could upgrade and sell me the bowfront!!:mrgreen::wink:

kien 10-08-2009 04:57 PM

Its not really just warped, but rather the image is distorted :biggrin:


All times are GMT. The time now is 03:12 PM.

Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.