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FORUMS Canon Cameras, Lenses & Accessories Canon G-series Digital Cameras 
Thread started 02 Jan 2013 (Wednesday) 12:09
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Downsizing on a budget - a G?

 
denncald
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Jan 26, 2013 19:54 as a reply to  @ post 15536377 |  #16

I have a G9 and G11, but not G15. I've also been considering "upgrading" to the G15, but not yet. You might find the following links helpful.

DxO Sensor Comparison for G15, G12, and G9 (external link)

I-R Comparometer (external link)

Dennis




  
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jt354
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Jan 29, 2013 12:48 |  #17

Fuji X10 > G12 > Anything nikon makes


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tmwag
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Jan 29, 2013 14:45 |  #18

Bob_A wrote in post #15536377 (external link)
I have a G9 and was wondering if someone that has owned both the G9 and the G15 can tell me how much better the IQ is for the latest model.

How many stops better noise performance?
How much has DR improved?
Etc.

I've owned a G9 and G11. The high ISO noise was greatly reduced on the G11. As far as the G15, I would expect it to be very similar to the S100. Same sensor, same digic5 processor.




  
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Bob_A
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Feb 01, 2013 17:24 |  #19

denncald wrote in post #15537700 (external link)
I have a G9 and G11, but not G15. I've also been considering "upgrading" to the G15, but not yet. You might find the following links helpful.

DxO Sensor Comparison for G15, G12, and G9 (external link)

I-R Comparometer (external link)

Dennis

Thanks Dennis.

It looks like from the DXOMark score there is just a small improvement in noise handling from the G9 to the G15, which seems to agree with the reviews done on DPReview (RAW with no noise reduction). I didn't find the I-R Comparometer images as useful since the G15 ones look smeared from a lot of NR being added.

However, the G15 has 1.4 stops more DR which is a big improvement, and may be enough reason for an upgrade. Having an f/1.8 to 2.8 zoom would also help reduce the need to crank up ISO. The only thing I would lose is a bit of reach.

Some specs that matter to me (I don't care about video and I only shoot RAW):

Noise for a 30 db SNR: G15 is 13% better than the G9 (less than 1/3 of a stop)
DR: G15 is 1.4 stops better than the G9 (big improvement)
Max Shutter Speed: G15 is 1/4000s, the G9 is only 1/2500s
Sensor Resolution: Essentially the same
FOV equiv to 35mm: 28-140 for the G15, 35-210 for the G9
AF: G15 is much more advanced
Back screen: G15 has 922,000 dots vs 230,000 for the G9. Screen size is the same.
Flash: Not certain if there is any difference. G15 has more range, but likely due to the faster lens. I couldn't find a Guide Number for either camera.
Size: The G15 is about 1% smaller (volume) than the G9 and 5% lighter.


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denncald
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Feb 01, 2013 18:47 |  #20

Bob,

We are traveling so I've been using my G9 a lot to see if it's as good as I remember. I've been using the G11 a lot. I'm relearning that anything above ISO 200 without good lighting or flash is not wonderful without some PP/noise reduction. I still like the longer reach of the zoom, but results are not as acceptable as my G11. At lower ISOs the G9 and G15 are similar on the I-R Comparometer, but I too wish it had RAW files I could download and process for each. I will still keep the G9 and try to stick to lower ISOs for now.

Dennis

Bob_A wrote in post #15561668 (external link)
Thanks Dennis.

It looks like from the DXOMark score there is just a small improvement in noise handling from the G9 to the G15, which seems to agree with the reviews done on DPReview (RAW with no noise reduction). I didn't find the I-R Comparometer images as useful since the G15 ones look smeared from a lot of NR being added.

However, the G15 has 1.4 stops more DR which is a big improvement, and may be enough reason for an upgrade. Having an f/1.8 to 2.8 zoom would also help reduce the need to crank up ISO. The only thing I would lose is a bit of reach.

Some specs that matter to me (I don't care about video and I only shoot RAW):

Noise for a 30 db SNR: G15 is 13% better than the G9 (less than 1/3 of a stop)
DR: G15 is 1.4 stops better than the G9 (big improvement)
Max Shutter Speed: G15 is 1/4000s, the G9 is only 1/2500s
Sensor Resolution: Essentially the same
FOV equiv to 35mm: 28-140 for the G15, 35-210 for the G9
AF: G15 is much more advanced
Back screen: G15 has 922,000 dots vs 230,000 for the G9. Screen size is the same.
Flash: Not certain if there is any difference. G15 has more range, but likely due to the faster lens. I couldn't find a Guide Number for either camera.
Size: The G15 is about 1% smaller (volume) than the G9 and 5% lighter.




  
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tmwag
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Feb 01, 2013 19:46 |  #21

Bob_A wrote in post #15561668 (external link)
It looks like from the DXOMark score there is just a small improvement in noise handling from the G9 to the G15, which seems to agree with the reviews done on DPReview (RAW with no noise reduction). I didn't find the I-R Comparometer images as useful since the G15 ones look smeared from a lot of NR being added.

SERIOUSLY? small improvement?




  
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tmwag
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Feb 01, 2013 20:06 |  #22

denncald wrote in post #15561943 (external link)
Bob,

We are traveling so I've been using my G9 a lot to see if it's as good as I remember. I'm relearning that anything above ISO 200 without good lighting or flash is not wonderful without some PP/noise reduction.

Dennis

++1




  
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denncald
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Feb 01, 2013 20:42 as a reply to  @ tmwag's post |  #23

I just took an ISO 1600 shot with my G9 (RAW image), and used Full Noise reduction (about 80%) and other noise tweaks in Noiseware Pro and Elements 10. The result is not too bad, but does not look wonderful at 100% pixel peeping. At least I can get something useable at that ISO and with fairly good indoor lighting. I wouldn't really try this in a low light situation.

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR

IMG_1715 copy (external link) by dhc42 (external link), on Flickr

ISO 1600 is the max for the G9, while the G15 goes much higher, although I don't know how well it looks at those nose bleed ranges.

Dennis



  
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tmwag
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Feb 01, 2013 23:37 as a reply to  @ denncald's post |  #24

Wow...nice shot Dennis for ISO 1600 with a G9




  
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denncald
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Feb 02, 2013 08:11 as a reply to  @ tmwag's post |  #25

Thanks, here's the Jpeg result from the camera.

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR

IMG_1715 (external link) by dhc42 (external link), on Flickr

Dennis



  
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Bob_A
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Feb 03, 2013 16:17 |  #26

tmwag wrote in post #15562095 (external link)
SERIOUSLY? small improvement?

Sorry, when you compare RAWs with zero NR it looks small to me. The G9's DR is horrible though and the 1.4 stop improvement that the G15 has over it is huge.


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BobsYourUncle
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Feb 03, 2013 23:24 as a reply to  @ Bob_A's post |  #27

Wow, Dennis - nice fixit job on a noisy picture!! Very impressive!

Better eat those bananas though, they are getting spotty.....


Set Goals!! If you aim at nothing, you will hit it every time!
EOS 70D
G1X .... and this other stuff
G11 and
380EX & 430EX
G9 - DEAD (self destructed) I'll fix it one day!

  
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denncald
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Feb 04, 2013 07:42 as a reply to  @ BobsYourUncle's post |  #28

Bob, thanks, but we all like fruit smoothies for breakfast, so there are only three bananas left this morning. Need to get some more.

Dennis




  
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vas182
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Jul 23, 2013 12:59 |  #29

A G12 would work fine.




  
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Downsizing on a budget - a G?
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