G6 jpeg quality

[mikecr]

Could anybody give me some advice about my jpeg quality.I owned the G3 for a couple years and shot thousands of pictures.The G3s quality on jpeg would blow away any of the jpegs I have shot on my G6.I know it is not my photos because of the scenes I have shot are not different from what I have shot in the past.But the G6 has stunning quality only in raw.Just about all the jpegs show alot of grain which I never got on my G3.Do you think there is an internal problem with the camera to do with the jpeg part.Thanks Mike

[S45_fornow...]

Could anybody give me some advice about my jpeg quality.I owned the G3 for a couple years and shot thousands of pictures.The G3s quality on jpeg would blow away any of the jpegs I have shot on my G6.I know it is not my photos because of the scenes I have shot are not different from what I have shot in the past.But the G6 has stunning quality only in raw.Just about all the jpegs show alot of grain which I never got on my G3.Do you think there is an internal problem with the camera to do with the jpeg part.Thanks Mike


Hi Mike. Post some examples of what you consider stunning/not-so-stunning images. Don't forget that the G6 has 3 more MP's of resolution and if you "Pixel-Peep" at full resolution then the images from the G6 will usually appear somewhat grainy on your computer screen. The best test for comparison is to make some prints and look at them side by side.

Now of course, you mentioned that your RAW images are "stunning" with the G6, so maybe your camera does have some quality issues, thus the request to post some samples...

Are you using the custom effect setting with any +/- sharpening when you shoot in jpeg? What about ISO settings?

[mikecr]

I keep my ISO at 50 as much as possible and the pictures are all shot at 50.And I do not use any effects on my pictures.I really am not shooting any different than have been used to with my G3.But yes the raws blow away anything on my G3.I have a 16x20 and many 11x14s from my G3 and the jpegs from the G6 would not give me those sizes without grain.Thanks

[S45_fornow...]

Mike, I presently own a G6 and had both the G3 and G5 in the past. I shoot about 75% jpeg and 25% RAW and my jpegs always appear fine when compared to those from G3/G5 for any given subject/lighting circumstance. I use ISO 50 90% of the time.

I'm very interested to see some samples of the grainy pics from the G6 you are talking about.

Maybe somebody else will chime in with a possible explanation of what might be happening.

You might try resetting your camera to its default settings and then doing the comparison again. Just a thought.

[Raj]

I dont have any first hand experience with G6, but I would expect G3's jpeg to be somewhat better than G6 - reason being G3 is 4 MP's, G6 has 7 MP, however sensor size is same on both the camera's (1/1.8" ccd). By normal maths this makes G6 more noise prone than G3, now this effect will be more visible in jpegs as certain alorithms like in camera sharpening kick in for RAW to jpeg conversion. (sharpening which will generally add to noise)

So unless there is some change in CCD or somehow noise reduction is better in G6, I will expect more noise or more grainy pics on G6.

Mike, IMO you will get best results from G series shooting at lowest ISO. What you can do is - shoot couple of pictures from both G6 & G3 if you still own it at different ISO's & then compare noise/grains in them. You can also try "low sharpening" mode on G6 & see if that makes any difference in your jpegs.

[Nabil-A]

So unless there is some change in CCD or somehow noise reduction is better in G6, I will expect more noise or more grainy pics on G6.

Actually the G6 is supposedly to have improved noise reduction.

[Raj]

Actually the G6 is supposedly to have improved noise reduction.

Noise reduction usually means loosing some details, a more agressive reduction will make image clean but will also result in less details. Now how significant this will be at 7 MP .. I have no idea...

[mikecr]

Thank you for your input.It does make sense that more sensitive sensor would be more prone to noise.It is amazing at the difference I have one shot exact same setting just one raw one jpeg as I was testing and the difference is massive.Alot of the jpegs look as bad as the 2mp Canon elph I tried years ago and returned and got a S30.I had wondered if anybody else had noticed this kind of problem in their G6.I really think there is a problem it isn't just a little difference it's severe.I think am going to have it looked at I checked and there is no firmware updates for it.thank you

[Raj]

I think am going to have it looked at I checked and there is no firmware updates for it.thank you

If the RAW is ok than most probably what you are seeing is inherent to in-camera processessing. This may be characteristic to G5 or may be not, I cant say for sure. However what you can do (if you have to live with your camera as such) is to always shoot RAW & then do post processing yourself (which is quite time consuming)
You must have a "low sharpening" in your custom effects, did you try that ?
Also I assume you are using least compression for your jpegs (fine ?)

[tealblue]

Unless you are using the high-range of the iso,The G6 noise is just not there.TeaalBlue

[Morfeatire]

the 7.1 MP sensor surelly delivers more noise than the G3 4 Mp's.. but way less then the G5's 5Mp... the point is, its another technology, the design of the sensor is completely different. The G6 has not an agressive noise reductor, and the noise is quite usable, even on iso 400, as its resambles very much film grains.

And thats for iso above 100, on 50 theres anything (perharps on underexposed areas it could happen)

The sharpening is a lill more agressive, perharps using less of it and sharpening on photoshop would solve your problems, but I'd like to see some examples...

[mikecr]

Thank you for all suggestions.Camera has gone in for repairs they figure there is problem with the camera.So I will see when it is returned what they were able to come up with.They think it is program problem but weren't sure.I have heard of similir problems with the odd G camera before,I have not done any research on other brands but I am sure the odd camera will have a problem,but I still would not trade my G series camera

[phyll]

I'm hoping someone can help me with my G6 problem. I, too, had a G3 which took beautiful pictures. I always shot in auto mode and pictures were crisp and vibrant. I now have the G6 (left the G3 on a plane:cry: ) and have very disappointed with the quality of the pictures. The majority of my pictures are taken outside during the day - all in auto mode. The only way I can describe them is "hazy". When I edited them with Picasa I was able to sharpen and brighten them but don't think I should have to edit every picture. I can't figure out if something is wrong with the camera or if I might have something set incorrectly (although I'm told once you're in auto mode it over rides all other settings).

Any suggestions? I'm going nuts trying to figure out what to do!

Thanks
Phyll

[Mannytkd]

I too have notised a softness i my shots, i have even reset the camera as someone advised me to do so on the forum but they are still soft, but when i edit them in PSCS2 they come out great. But what i am abou to say is, when i first got this camera las november i knew nothing about noise and camera pixels, i took a shot of my dog in jpg L format, took the camera to Jessops, took the card out and asked for that shot to be processed and it came out perfect, there was no messing about with it from me, it was even blown to 11x14 and still was perfect.

I have an epson r-200 and ger perfect results too after processing, so where do we draw the line on the G6, i may contact Canon myself to see what they have to say......
I'm hoping someone can help me with my G6 problem. I, too, had a G3 which took beautiful pictures. I always shot in auto mode and pictures were crisp and vibrant. I now have the G6 (left the G3 on a plane:cry: ) and have very disappointed with the quality of the pictures. The majority of my pictures are taken outside during the day - all in auto mode. The only way I can describe them is "hazy". When I edited them with Picasa I was able to sharpen and brighten them but don't think I should have to edit every picture. I can't figure out if something is wrong with the camera or if I might have something set incorrectly (although I'm told once you're in auto mode it over rides all other settings).

Any suggestions? I'm going nuts trying to figure out what to do!

Thanks
Phyll

[kraterz]

Problem with the camera.. that makes sense. I've shot quite a few JPEGs with in camera processing, sharpness, contrast and saturation set to zero. These have usually been indoors with two strobes and ISO-50. The results have been uniformly excellent, with good sharpness and detail, and a well rendered tonal range which leads me to believe that there's nothing wrong with the JPEG processing in the camera.
Thank you for all suggestions.Camera has gone in for repairs they figure there is problem with the camera.

[Andy_T]

Hmm...

so why not just use RAW?

It's what I did on my G2 all the time, because it gave me the best quality.

If you batch convert in BreezeBrowser, it's not that inconvenient.

Best regards,
Andy