A610/A620 Vignetting, II

[PuzzleGal]

50Lover wrote:
. . . But I

went to the living room and took you a real tough example. One 60
watt shaded lamp on the right side of the room from the camera.
Handheld with elbows on table, 4/10 second shutter, f3.2 aperture.
About 50mm P-mode, ISO 400. This is about as tough as it gets for
noise, I believe (a tripod would make a difference here).

Wow! That's terrific. You may have just sold me on this camera.

I learned a lot from the first thread. I learned what vignetting is. I learned what conditions exacerbate it. I even learned how to adjust for it in photoshop, should I ever buy photoshop. The vignetting in the A610 doesn't look like too much of a problem for me, as I mostly use wide angle for outside shots at a distance. I do occassionally shot a picture on a wall at a museum, but I can take a step back and use a narrower angle, now that I've learned about this. On the other hand, I can see how someone who takes a lot of indoor shots at wide angle might care. I'm curious for objective comparisons of the vignetting of this camera vs. others, even though it probably isn't a make-or-break issue for me.

 

[hobster]

You joined this forum two months ago, grow up.

Excuse me? I was working in my own darkroom while your parents were still in high school. Don't patronize me. You haven't earned that right yet, and you are unlikely to ever do.

see where you contributed photographic examples of the issue at
hand in that thread. About the only thing you contributed was talk
talk talk, which quite frankly is not of much value.

I am trying to learn about the issue before I make up my mind and before I buy the camera. So how am I supposed to provide photographic evidence? Get it? I appreciated your posting your pictures in the previous thread. I just didn't appreciate your remark when closing the thread.

FYI: I was involved in the thread before you were. Once again sir,
grow up.

Once again, don't patronize me. I don't put up with bs. If you want to discuss something rationally, you will get nothing from me but my undivided attention.

--
hobster

 

[hobster]

Since I haven't upgraded to the CS yet, I was curious if someone who has could clear this up for me. I was under impression that the vignetting control (which someone in the previous thread mentioned as a solution to this issue) was a part of the raw import (Adobe Camera Raw). Can you use it when working with jpeg files?

--
hobster

 

[bimbobo]

Since I haven't upgraded to the CS yet, I was curious if someone
who has could clear this up for me. I was under impression that the
vignetting control (which someone in the previous thread mentioned
as a solution to this issue) was a part of the raw import (Adobe
Camera Raw). Can you use it when working with jpeg files?

--
hobster

I have the new CS, but I did not find any special "anti-vignetting" option yet.
I only used it to resize and remove red-eye so far.
I have also Paint Shop Pro X and it has more auto-features somehow...
As far as I read here, you can use crop to remove the vignetting..

About the discussion of vignetting, I was the one who posted the comparison between the A40 and the A610.

The fact that I did not see the vignetting in the A40 was only a coincidence. But I saw some dark corners that time too, I just thought it was me not taking the good pictures.
I have contacted Canon and they promised me to call me back...
So I will post here as soon as I know something more.
Regards

 

[hobster]

I have the new CS, but I did not find any special "anti-vignetting"
option yet.

bimbobo, it is apparantly a part of the built-in Adobe Camera Raw plugin. One of the tabs named "Lens" has the vignetting option. Won't you go ahead and check it out. I would be curious as to your results. Thanks.

--
hobster

 

[hobster]

About the discussion of vignetting, I was the one who posted the
comparison between the A40 and the A610.

Yes, I saw them. I used them for my preliminary calculations. Michael also posted some shots early in the original thread.

--
hobster

 

[bimbobo]

..I will!!

Regards

 

[hobster]

..I will!!

Thanks. In the meantime I should be getting some tests of A95 for comparison. When I get them, we will be able to look at them side by side with your shots from A620.

I would really like to find a good solution to this, as the reported camera speed is just what I need.

--
hobster

 

[bimbobo]

....I have A610..not A620.

About Phoshop CS, i could not access the raw options as I do not raw pictures available.
Maybe I did something wrong.... though!
regards

 

[bimbobo]

...I finally found the vignetting correction in Photoshop CS2 under "filter-> distort-> lens correction...
I played a little with the possible features and it seems to work pretty well..

It needs some work to find out the best solution, but it can surely help with the worst cases of vigneting.
Regards

 

[bimbobo]

...Paint Shop Pro X has an even better vignetting correction.

Under "layers-> new adjustement layers-> levels there is a 2 sliders that allow you to correct the picture very very easily.

I tried with the one posted in this thread called A610A and it could turn perfectly "white" also in the darkest part of the 4 corners.
Regards

 

[hobster]

This is very good news. This is the kind of solutions we needed in this thread. Could you post the results next to your other samples on pbase? That would be great.

Thanks for your efforts.

--
hobster

 

[bimbobo]

...ups! I just tested it without saving the result... I will post it later today after office time..
Regards

 

[bimbobo]

This is very good news. This is the kind of solutions we needed in
this thread. Could you post the results next to your other samples
on pbase? That would be great.

Thanks for your efforts.

--
hobster

Here are samples made with Photoshop CS2 and PSP X..
file name is 142, copy is the one made with Photoshop..

http://www.pbase.com/bimbobo2003/inbox

regards

 

[bimbobo]

.... I must say that I did not play a lot with the settings in CS2 and PSPx, probably it can be done even better, but the results were not too bad.. IMHO.
Regards