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09/18/2006 01:45:01 AM · #1 |
They announced the Canon PowerShot G7...10MP
Someone said that is too many pixels for such a small sensor...I really like the build of this one...am I going over my head...will it be worthless past ISO 200?
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09/18/2006 01:52:15 AM · #2 |
| there's already an earlier discussion here. But answering your question, I dont think 10MP is too much. More the merrier. |
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09/18/2006 01:53:28 AM · #3 |
Face Detection AF/AE
For portrait and group shots, the PowerShot G7 is equipped with Face Detection AF/AE, a new Canon technology that automatically detects up to nine faces within a frame and sets the optimum focus and exposure accordingly. If there is more than one face in a frame Face Detection AF/AE is able to determine the face or faces intended to be the main focus. The system operates at the same speed as Canon’s established 9-point AiAF system, which it automatically reverts to if no face detection is required or intended.
If that really works, that feature is just awesome.
I don't think 10 mp is too much. Sensors are getting better all the time.. and computation of the data is getting much better.
Message edited by author 2006-09-18 01:54:28.
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09/18/2006 02:25:00 AM · #4 |
I think that many people in photography, and in the industry, are beginning to find that 10mp is too much on *many* (if not most), P&S/prosumer/SLR-like cams. The sensors *are* smaller, they aren't quite at a stage where the image processing is up to par yet, and people are noticing either A) very noisy images (almost unusable in many cases), or B) really strong noise reduction algorithms that destroy a lot of good detail.
There are cameras that do better with 10mp than others of course.. and some people swear by their 10mp digi-cams.
Personally, I think we've hit a cap for digicam and APS-C sized sensors, and hope that the industry starts focussing more on better imaging processers, better sensors as a whole, and more dynamic range on those sensors than they do trying to find a way to cram more MP in.. which I find sort of like the computer CPU clock-speed race.. too much hype, for something that isn't the main thing that makes your photos better out of the camera in the first place.
More MPs are better, no doubt about it, but only on cams that can handle them.. which means larger sensors, larger photosites, and better image processing.
Now.. having said all that, the G7 is too new for anyone to really speculate how it'll handle 10mp. My advice is to wait until sample images start coming in from all over, and base your decisions on that.
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09/18/2006 02:48:06 AM · #5 |
| The problem is many people measure image quality by the amount of megapixels, and that is why the camera manufacturers keep trying to cram more in. |
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09/18/2006 02:52:35 AM · #6 |
| Heck ..... I own a D200 and I'm almost of the mind that 10mp is too much. The RAW file sizes are ridiculous and the amount of RAM needed to work on them is also nuts. Granted that image quality can be said to be better that my 6mp D70 but I'd be hard pressed to say I'll be looking at stepping even higher anytime soon. |
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09/18/2006 02:58:42 AM · #7 |
| I think if we can pair a sharp lens with a high megapixel sensor, then why not? The problem is when you have a 50MP sensor with a lens as sharp as my camera-phone, lol |
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09/18/2006 03:05:45 AM · #8 |
Originally posted by crayon:
I think if we can pair a sharp lens with a high megapixel sensor, then why not? The problem is when you have a 50MP sensor with a lens as sharp as my camera-phone, lol |
A lot of the problem is the lens system. Even a full-frame dSLR... a 35mm lens system can't resolve much past 20MP.
I won't hazzard to guess the limitations of a P&S lens.
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09/18/2006 03:39:37 AM · #9 |
I really like the look of the G7 and the fact that it has IS...need a replacement for my IXUS 60...had a G5 once which was nice pre DSLR days...this looks like it could fit the 'I don't want to take my D200 with me today' camera slot
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09/18/2006 10:12:26 AM · #10 |
Originally posted by hotpasta:
I really like the look of the G7 and the fact that it has IS...need a replacement for my IXUS 60...had a G5 once which was nice pre DSLR days...this looks like it could fit the 'I don't want to take my D200 with me today' camera slot |
Thats what I was thinking, my 20D is a hassle to carry everywhere...but I want to make sure it's not going to suck after ISO 200 before I buy
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09/18/2006 10:19:25 AM · #11 |
Originally posted by crayon:
I think if we can pair a sharp lens with a high megapixel sensor, then why not? The problem is when you have a 50MP sensor with a lens as sharp as my camera-phone, lol |
I think you've found the real factor, not the sensor but the lens combination with the sensor. It's easy to have lots of MP (take for example the Canon 5D) and if you put a "cheap" lens on it you have a great $150 point and shoot camera. Remember "cheap" means quality not cost. That is where the issues are. An inexpensive point-and-shoot with a 10mp sensor with a "Cheap" lens gains you nothing. A 10mp sensor with a sharp and equally capable lens and then it's worth it. |
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09/18/2006 10:43:35 AM · #12 |
short answer: Yes, 10MP is too many. Yes, anything over ISO 200 will suck. If not because of noise, then because of noise reduction.
Further, the speed of the lens on that camera is far more of an issue than the quality of it per se. Things have slowed down a lot and f/4.8 as the widest aperture at full telephoto is pretty scary when using an imaging sensor that starts to enter image compromise due to diffraction limitation at f/4.0 or f/4.5.
Long answer: Read about it by doing a google on 'diffraction limitation' 'cambridge in color'.
beh |
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09/18/2006 11:00:50 AM · #13 |
What's the pixes per square inch?
Just curious how many MP that density would be on an APS sized chip...
And the more MP the better - the 'worse' the actual image from their P&S cameras the more likely they'll hire me! LOL
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09/18/2006 11:28:28 AM · #14 |
| Maarketing? I have a friend who knows little about cameras but just HAD to have an 8MP P&S. But she also wants lots of photos on her card so she keeps it set on the lowest quality image choice. |
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09/18/2006 11:35:10 AM · #15 |
Originally posted by emorgan49:
Maarketing? I have a friend who knows little about cameras but just HAD to have an 8MP P&S. But she also wants lots of photos on her card so she keeps it set on the lowest quality image choice. |
yea there is no doubt that it is about marketing. dSLR owners can recount many a story of someone saying "hey that looks like a nice camera. how many mega pixels is it?" My 5d has alot of MP and it is very nice to have when wanting to crop or print large but as mentioned before without good optics and good light performance(apeture,low noise at higher ISO etc.) it doens't make a differnce. |
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09/18/2006 12:06:38 PM · #16 |
I have taken a few shots of the same subject with my D50 and D200 using the same lens to compare quality and really there is not much difference. I noticed a bit of noise in the 10MP pictures that is not in the 6MP pics but the 10mp for the most part seem to be a tad more sharp/crisp.
I wouldn't say 10 MP is overkill but I wouldn't go any higher than that for a few years.
When I upgraded to the D200 it was not for the extra MP, I mainly did it for all the extra features also because the D50 is a bit small for my hands. however I do enjoy being able to crop alot closer now than I could with photos taken with the D50.
If the new Canon PS G7 is as nice as it is described my brother inlaw will probably be buying one.
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