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#1
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Is 4 Mpix camera just as good as 5 Mpix when available light is the limiting factor?
I'm shopping for a digital camera and I've narrowed my choices down to
the Canon Powershot A85 (4 megapixels) and the Sony DSC-W1 (5 megapixels). I'm going to be taking some indoor photographs that will be enlarged to at least 8x10, maybe 11x14, with little or no cropping. Given ample lighting and using the lowest ISO setting, I would expect the 5 megapixel camera to produce a better enlarged image. However, I expect the available light in my situation to be only adequate at best, certainly not ample. Therefore, I will be forced to use a higher ISO setting, which will undoubtedly introduce noise into the image. Under these circumstances, wouldn't a 5 megapixel camera show just as much noise as a 4 megapixel camera, thus reducing the overall image quality and losing the advantage of having an extra million pixels? Leonardo |
#2
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"Woody" wrote in message om... I'm shopping for a digital camera and I've narrowed my choices down to the Canon Powershot A85 (4 megapixels) and the Sony DSC-W1 (5 megapixels). I'm going to be taking some indoor photographs that will be enlarged to at least 8x10, maybe 11x14, with little or no cropping. Given ample lighting and using the lowest ISO setting, I would expect the 5 megapixel camera to produce a better enlarged image. However, I expect the available light in my situation to be only adequate at best, certainly not ample. Therefore, I will be forced to use a higher ISO setting, which will undoubtedly introduce noise into the image. Under these circumstances, wouldn't a 5 megapixel camera show just as much noise as a 4 megapixel camera, thus reducing the overall image quality and losing the advantage of having an extra million pixels? Leonardo You have to check noise by buying or by reading reviews such as www.dpreview.com There is no simple way to evaluate digital cameras as each user has different priorities. Megapixels are important but are also over hyped by marketers. |
#3
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Woody wrote:
I'm shopping for a digital camera and I've narrowed my choices down to the Canon Powershot A85 (4 megapixels) and the Sony DSC-W1 (5 megapixels). I'm going to be taking some indoor photographs that will be enlarged to at least 8x10, maybe 11x14, with little or no cropping. Given ample lighting and using the lowest ISO setting, I would expect the 5 megapixel camera to produce a better enlarged image. However, I expect the available light in my situation to be only adequate at best, certainly not ample. Therefore, I will be forced to use a higher ISO setting, which will undoubtedly introduce noise into the image. Under these circumstances, wouldn't a 5 megapixel camera show just as much noise as a 4 megapixel camera, thus reducing the overall image quality and losing the advantage of having an extra million pixels? Leonardo Noise is a function of the sensor size. Go for the camera with the larger sensor, and the faster lens. The difference between 4 and 5Mp is negligible. Colin. |
#4
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Woody wrote:
I'm shopping for a digital camera and I've narrowed my choices down to the Canon Powershot A85 (4 megapixels) and the Sony DSC-W1 (5 megapixels). I'm going to be taking some indoor photographs that will be enlarged to at least 8x10, maybe 11x14, with little or no cropping. Given ample lighting and using the lowest ISO setting, I would expect the 5 megapixel camera to produce a better enlarged image. However, I expect the available light in my situation to be only adequate at best, certainly not ample. Therefore, I will be forced to use a higher ISO setting, which will undoubtedly introduce noise into the image. Under these circumstances, wouldn't a 5 megapixel camera show just as much noise as a 4 megapixel camera, thus reducing the overall image quality and losing the advantage of having an extra million pixels? Leonardo Noise is a function of the sensor size. Go for the camera with the larger sensor, and the faster lens. The difference between 4 and 5Mp is negligible. Colin. |
#5
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Woody wrote:
I'm shopping for a digital camera and I've narrowed my choices down to the Canon Powershot A85 (4 megapixels) and the Sony DSC-W1 (5 megapixels). I'm going to be taking some indoor photographs that will be enlarged to at least 8x10, maybe 11x14, with little or no cropping. Given ample lighting and using the lowest ISO setting, I would expect the 5 megapixel camera to produce a better enlarged image. However, I expect the available light in my situation to be only adequate at best, certainly not ample. Therefore, I will be forced to use a higher ISO setting, which will undoubtedly introduce noise into the image. Under these circumstances, wouldn't a 5 megapixel camera show just as much noise as a 4 megapixel camera, thus reducing the overall image quality and losing the advantage of having an extra million pixels? Leonardo Why not get the Powershot A95 (5 megapixels) and the price is just a little bit more and performs better than the A85 |
#6
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Woody wrote:
I'm shopping for a digital camera and I've narrowed my choices down to the Canon Powershot A85 (4 megapixels) and the Sony DSC-W1 (5 megapixels). I'm going to be taking some indoor photographs that will be enlarged to at least 8x10, maybe 11x14, with little or no cropping. Given ample lighting and using the lowest ISO setting, I would expect the 5 megapixel camera to produce a better enlarged image. However, I expect the available light in my situation to be only adequate at best, certainly not ample. Therefore, I will be forced to use a higher ISO setting, which will undoubtedly introduce noise into the image. Under these circumstances, wouldn't a 5 megapixel camera show just as much noise as a 4 megapixel camera, thus reducing the overall image quality and losing the advantage of having an extra million pixels? Leonardo Why not get the Powershot A95 (5 megapixels) and the price is just a little bit more and performs better than the A85 |
#7
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Do you know how the A95 compares to the Sony Cyber-shot DSC-W1?
I'm buying a digital camera for my son and decided on the Sony DSC-W1. It'll be used primarily for P&S baby pictures and vacation pictures. Thanks, Mike Since I know nothing about digital cameras I'm trying to get all of the information I can. "Era" wrote in message ... Woody wrote: I'm shopping for a digital camera and I've narrowed my choices down to the Canon Powershot A85 (4 megapixels) and the Sony DSC-W1 (5 megapixels). I'm going to be taking some indoor photographs that will be enlarged to at least 8x10, maybe 11x14, with little or no cropping. Given ample lighting and using the lowest ISO setting, I would expect the 5 megapixel camera to produce a better enlarged image. However, I expect the available light in my situation to be only adequate at best, certainly not ample. Therefore, I will be forced to use a higher ISO setting, which will undoubtedly introduce noise into the image. Under these circumstances, wouldn't a 5 megapixel camera show just as much noise as a 4 megapixel camera, thus reducing the overall image quality and losing the advantage of having an extra million pixels? Leonardo Why not get the Powershot A95 (5 megapixels) and the price is just a little bit more and performs better than the A85 |
#8
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Do you know how the A95 compares to the Sony Cyber-shot DSC-W1?
I'm buying a digital camera for my son and decided on the Sony DSC-W1. It'll be used primarily for P&S baby pictures and vacation pictures. Thanks, Mike Since I know nothing about digital cameras I'm trying to get all of the information I can. "Era" wrote in message ... Woody wrote: I'm shopping for a digital camera and I've narrowed my choices down to the Canon Powershot A85 (4 megapixels) and the Sony DSC-W1 (5 megapixels). I'm going to be taking some indoor photographs that will be enlarged to at least 8x10, maybe 11x14, with little or no cropping. Given ample lighting and using the lowest ISO setting, I would expect the 5 megapixel camera to produce a better enlarged image. However, I expect the available light in my situation to be only adequate at best, certainly not ample. Therefore, I will be forced to use a higher ISO setting, which will undoubtedly introduce noise into the image. Under these circumstances, wouldn't a 5 megapixel camera show just as much noise as a 4 megapixel camera, thus reducing the overall image quality and losing the advantage of having an extra million pixels? Leonardo Why not get the Powershot A95 (5 megapixels) and the price is just a little bit more and performs better than the A85 |
#9
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"Mike" wrote
Do you know how the A95 compares to the Sony Cyber-shot DSC-W1? ...It'll be used primarily for P&S baby pictures and vacation pictures. Both are good cameras, and each has unique features. The W1 has a much larger 2.5" LCD (1.8" in A95), and a very fast full autofocus shutter lag (wide angle) of 0.3 sec, pre-focus ultrafast lag of 0.01 sec - something that would be very handy for taking pictures of kids. It also has a live histogram, pre-flash metering, etc. - for those who can use these features. A little smaller and solid compared to A95. But W1 has no shutter priority or aperture priority modes (A95 has both), has a smaller aperture range of f2.8-f5.6 (f2.8-f8 in A95), only three ISO steps 100/200/400 (A95 has 50/100/200/400). Take your pick. Regards - JW |
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