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post #421 of 29551
nice shot i want that spider! barrel distortion is that why the stick is curved?
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post #422 of 29551
Thread Starter 
Quote:
Originally Posted by mugan23 View Post
nice shot i want that spider! barrel distortion is that why the stick is curved?
The spider is a Chilean Rosehair, female, now seven years old (can live to 30).

Yeah, BD is most evident when photographing long straight edges, like skyscrapers or framed art. I believe PS has a tool to correct it.
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post #423 of 29551
I think if you crop the spider and b/w it, you should blow it up and print it.
post #424 of 29551
Barrel distortion sucks the big one



(my most distorted shot)
    
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post #425 of 29551
Thread Starter 
Quote:
Originally Posted by ecoyd1 View Post
I think if you crop the spider and b/w it, you should blow it up and print it.
Yeah I will make a 4 by 5 foot print, and then I'll put directly opposite my front door with a light right above it. That will make for some interesting reactions from guests.

I need to spend some time on it though in PS, as it's straight from the camera, and a really old one at that.

Quote:
Originally Posted by sugarton View Post
Barrel distortion sucks the big one

(my most distorted shot)
Perfect example, thanks for posting it. What's your cam? There's little anyone can do to overcome BD at close distance, even $2000 Canon L lenses have some BD.
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post #426 of 29551
how do u fix it?
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post #427 of 29551
Quote:
Originally Posted by sugarton View Post
Barrel distortion sucks the big one

(my most distorted shot)
Quote:
Originally Posted by mugan23 View Post
how do u fix it?
I've had some very pronounced barrel distortion in some of my shots, but shooting in RAW, I just correct it in the "digital darkroom".

The distortion in sugarton's shot (and your one of the RAM module) is next to nothing, compared to some of the shots I've fix with RAW processing.

It seems to me that shooting in RAW with a decent RAW processor can make all the difference between a shot you bin and one you can use. I honestly think I'll never shoot JPEG again.

If I get the time tomorrow, I'll give you an example of a shot I've fixed .

Highly-Annoyed
Edited by Highly-Annoyed - 5/13/08 at 4:32pm
    
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post #428 of 29551

adasda


Edited by ecoyd1 - 3/24/14 at 10:12am
post #429 of 29551
Thread Starter 
Quote:
Originally Posted by Highly-Annoyed View Post
I've had some very pronounced barrel distortion in some of my shots, but shooting in RAW, I just correct it in the "digital darkroom".

The distortion in sugarton's shot (and your one of the RAM module) is next to nothing, compared to some of the shots I've fix with RAW processing.

It seems to me that shooting in RAW with a decent RAW processor can make all the difference between a shot you bin and one you can use. I honestly think I'll never shoot JPEG again.
Yeah, I just use Canon's Digital Photo Professional (RAW editor) which has a feature to correct typical lens problems (barrel distortion, chromatic aberration, etc.).

Highly Annoyed, you hit it on the head - RAW is the only way to go. I don't shoot in JPEG at all anymore, and I only convert to JPEG for uploading to Flickr/Photobucket or if I want to make a print.

Quote:
Originally Posted by mugan23 View Post
how do u fix it?
By shooting in RAW and using appropriate RAW editing software. However Photoshop/PaintShop Pro, and even GIMP has a feature to correct distortion. I believe is PSP it's in the Photo Fix menu under Geometries.
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post #430 of 29551
I shot my photo on a Canon 350D (Rebel XT) with the 18-55mm kit lens, at 18mm. Apparently BD is most prevalent on this lens at 18mm, so thats why it's so dramatic there. It is certainly possible to fix it in Adobe RAW, but I don't mind it enough to be bothered.

And yah, I've even gotten BD on my friend's 17-40 f/4L.

Another example here. Same camera, 18mm again. BD is incredibly obvious along the top and bottom frames.



I could have evened it out by moving right a bit and altering the angle but it can be impossible to even notice until you get home and load into PS.
Edited by sugarton - 5/13/08 at 9:27pm
    
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