Is This Acceptable for a G10?

[Belmondo]

This is the original image...

http://www.pbase.com/grumpus/image/109624998.jpg


And this is the crop. Note the CA, especially on the trees.

http://www.pbase.com/grumpus/image/109625043.jpg

Thanks for your opinion. I suspect this camera is going back to Canon.

[Vndcatr]

wow.. how much of a crop was that ?

[Belmondo]

wow.. how much of a crop was that ?

I wasn't really trying for a strict 100% crop, so I can't answer the question. This is a 100% crop:

http://www.pbase.com/image/109741793/original.jpg

[Telkin]

That actually looks a lot sharper than my G10 at 100%. I'd be happy with that but perhaps my expectations are a bit different.

[10megapixel]

You can eliminate some of the CA if you shoot in RAW. Were you shooting in auto or did you have manual settings ?

[Jakpro]

# Exposure Time (1 / Shutter Speed) = 1/800 second = 0.00125 second
# Lens F-Number/F-Stop = 4/1 = F4
# ISO Speed Ratings = 80
Exposure Mode = auto exposure (0)

[10megapixel]

# Exposure Time (1 / Shutter Speed) = 1/800 second = 0.00125 second
# Lens F-Number/F-Stop = 4/1 = F4
# ISO Speed Ratings = 80
Exposure Mode = auto exposure (0)

I probably would have shot AV mode and set @ f/8 in this bright light. That might help with the CA. I don't shoot auto and expect great results with this camera (or any), you really have to play around with it to get the best results.

[gcogger]

I probably would have shot AV mode and set @ f/8 in this bright light.

f/8 on this camera would give rather soft images due to diffraction effects...

As to the original image, that looks pretty odd! I've only seen noticeable fringing on strongly backlit shots, although I've not used the camera all that much yet.

[Belmondo]

# Exposure Time (1 / Shutter Speed) = 1/800 second = 0.00125 second
# Lens F-Number/F-Stop = 4/1 = F4
# ISO Speed Ratings = 80
Exposure Mode = auto exposure (0)

I probably would have shot AV mode and set @ f/8 in this bright light. That might help with the CA. I don't shoot auto and expect great results with this camera (or any), you really have to play around with it to get the best results.

Actually, I'm not sure why it shot at that speed. I'm sure it was the camera's decision (P mode, probably).

Maybe I'll go back and try it with a smaller aperture and see what happens.

And ISO=80? What's with that? :lol:

[LostShootingStar]

I would say yes, that looks great for a G10 http://m08o1124znfu179.imageshacknow.info/img/2465/o09a0208gstn/POTNsmile.gif

[grandadraymond]

These dont look to bad really with a bit of contrast:)
http://farm4.static.flickr.com/3599/3323268532_dac144d223.jpg

[Belmondo]

These dont look to bad really with a bit of contrast:)


That does perk it up. I really didn't do much post processing in these images beyond cropping. Mainly I was just worried about the CA near the edges.

I definitely want to try a similar shot again, but do it right this time. Then I'll decide whether I need to worry about the camera or not.

[Bernoulli]

I think you're doing pretty well with it. It's as good as my G10.

Here's the before and after with a little bit of punch-up in PP.

[Belmondo]

I think my real problem is expectations. I'm used to shooting full-frame DSLRs, and this is probably an unfair test for a compact.

Overall, the image is pretty good until you start pixel-peeping in the corners. I guess I had expected (hoped) for better. I can certainly live with it, however.

[tkbslc]

The G10 is a great camera, but it still has a compact sensor. You can't pixel peep the images if you want to be happy. Just view them at your intended output sizes, not 100% and you'll be happier.

[dad3*3]

Those vertical lines by the trees and other vertical edges would bother me. I just looked at a few images I recently shot with my recently aquired G10 and don't notice anything like this. I did shot everthing in RAW so I don't know if that makes a difference.

[jkdurden]

I shoot a D300 and can feel your DSLR pain. :)

Once you accept that the G10 isn't a DSLR and it never will be, you'll enjoy your camera much more. It is a point and shoot that has a lot of features but all in all - it is still a point and shoot compared to your DSLR.

I was a little upset about the performance as well when I first got mine but after learning it's quirks, I've decided to keep it. Once you learn it's weak/strong points you'll be happy you got it. I suspect you might want to go to MY COLORS and bump up your contrast and saturation just a bit.

If you want the most detail - shoot low ISO, RAW+JPEG and enjoy.

I hope that helps...

JD

[Dualbeast]

There is a firmware update on canon's website
"Corrects the phenomenon concerning the PowerShot G10 in which a magenta (reddish purple) cast appears if RAW images are recorded under the following conditions:
1) Continuous shooting under ISO 1600 setting.
2) Single shooting only if the LCD monitor display mode is set to the OFF position.

Images that are affected cannot be confirmed when viewed on the camera's LCD monitor. It can only be confirmed when using image processing software to develop the RAW images on a PC. "

[adam8080]

What programs are you using to process images? Lightroom and Photoshop both have CA corrections.

[Belmondo]

What programs are you using to process images? Lightroom and Photoshop both have CA corrections.

I use LR2 and PS CS4, and this is beyond the limits of what they can fix.

[Belmondo]

There is a firmware update on canon's website
"Corrects the phenomenon concerning the PowerShot G10 in which a magenta (reddish purple) cast appears if RAW images are recorded under the following conditions:
1) Continuous shooting under ISO 1600 setting.
2) Single shooting only if the LCD monitor display mode is set to the OFF position.

Images that are affected cannot be confirmed when viewed on the camera's LCD monitor. It can only be confirmed when using image processing software to develop the RAW images on a PC. "

That's interesting. I'm not sure that really applies to the conditions I was shooting in, but it does make me wonder if I have the latest firmware. I'll check. Thanks.

[stathunter]

I do not mean to hijack the thread but want to throw my opinion in here. I ordered the G10 - and put it through some active use on a trip to NYC. While I think it is a great camera-- I just called B&H and am going to return it. For me it has too much noise - even at lower ISO settings. It excels in full sun-- but I want something that does well in more typical conditions - for me. Low light- indoor etc-- it really does not shine here -- and for the noise levels I think I am going to get a Lumix-- had one before- and lost it. :(

The G10 is a pretty heavy bugger-- seems to be built like a tank-- for me it is a little awkward to hold--- hard to really get a grip on it. I shoot professionally and have a hard time using the live view side-- so I find myself using the viewfinder-- and it is a little off.

Bottom line-- good camera-- not sure if it worth the $400 or so--- but again that is just my opinion.

EDIT-- I neglected to add that I loved the macro feature. It really seemed to do well in Macro-- I thought about keeping the camera and using the macro for ring shots at my weddings --but my target brides would not think to highly if I whipped out a point and shoot for their wedding.........

[tol1l1yboy]

The beauty of the g10 is that it doesnt look like a p&s so you could whip it out at a wedding and nobody would think twice :)

[MDJAK]

You should have bought the adaptor which would retrofit your 1200mm f2.8 on the end of that G10. Then you'll get results.

:lol:

me

[JimAskew]

I think my real problem is expectations. I'm used to shooting full-frame DSLRs, and this is probably an unfair test for a compact.

Overall, the image is pretty good until you start pixel-peeping in the corners. I guess I had expected (hoped) for better. I can certainly live with it, however.
Tom,

My experience exactly. You have to put the G10 in context...it is a great P&S but it is not a dSLR with an "L" lens on board.

I think your photo with a little PP using the DDP s/w that came with the camera meets G10 expectation to a tee :)

I use my G10 as a "photo op" camera only and I carry it with me always. It fits that role perfectly.

[Belmondo]

Tom,

My experience exactly. You have to put the G10 in context...it is a great P&S but it is not a dSLR with an "L" lens on board.

I think your photo with a little PP using the DDP s/w that came with the camera meets G10 expectation to a tee :)

I use my G10 as a "photo op" camera only and I carry it with me always. It fits that role perfectly.


Thanks, Jim. Thanks everyone else who commented, too. I've since taken other shots with the G10 at more normal focal lengths, and don't see the phenomenon as anything I can't live with.

[CJinAustin]

Looks good to me, just needs to be sharpened and the levels tweeked..

[Kevan_G9]

CA is all about the lens and focus and different colors with differing wavelengths, no? I'd be curious to see the difference with the crop on a wide angle vs. a zoom and possibly crop of the same scene.

Does this situation have more to do with the G's glass than sensor?

[CJinAustin]

CA is all about the lens and focus and different colors with differing wavelengths, no? I'd be curious to see the difference with the crop on a wide angle vs. a zoom and possibly crop of the same scene.

Does this situation have more to do with the G's glass than sensor?

I'm fairly certain it's the glass not focusing the light perfectly onto the sensor.

I've seen CA on DSLR's with crappy lenses; throw on a better lense and the problem goes away.