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DPChallenge Forums >> Hardware and Software >> Canon posts firmware update for EOS 7D
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11/02/2009 06:01:20 PM · #26
Originally posted by zxaar:

Originally posted by rider:

I'm thrilled to use 3200 but there seems to be such big debate over iso and noise and it keeps going up as the tech gets better -like cf cards ,and so many other electronic things everything keeps growing 1 way or another i'm sure if you would have told me when i bought my first computer with a 250mb hard drive that 1 day i'd have a 16gb card that was smaller that a pad of matches i'd have said you were nuts!


one of the reasons for such debate is lenses. Generally kit lenses are are f3.5 and zooms are also around 3.5, or f4. (I mean cheap or moderate priced ones). In film days generally cameras were bundled with f1.4 or f1.8 primes. Now since f3.5 is pretty slow the high iso do become important and becomes one of the talking point.

i think for a general person a cam can shoot usable iso 3200 is good enough for almost all his needs.

I have never used flash in last 7 years. Any of my digital cam can not shoot usuable images above iso400. But since I use faster lenses, never felt like craving for iso uber number.

edited to add: my new cam k-x can shoot usuable iso 6400 images. Its surprising good at higher isos. But i doubt i will go above iso800 on it.


I think you hit the nail on the head. No matter what your camera can do, it is all about what lens you use. I don't want a war between Canon and Nikon users about which camera is best. You get what you pay for and if your lens is inferior, you have to bump up ISO, if your lens is f1.4 or 1.4, then you have the advantage over those with f3.5 etc.
11/03/2009 12:39:40 PM · #27
Originally posted by zxaar:


i dunno about nikon bias thing but this is a fact that nikon currently makes best low light camera (D3s), it is perfectly alright to assume that they know a thing or two about high iso images.
This along with pixel size info, it is very likely that nikon one outperforms canon's.

Further less noise is also not everything, detail is also important.


The test I linked above makes it fairly clear that the 7d out-performs the d300. This is congruent with my experience with the 7d performing nearly as well as the 5d II, and far better than the d300.

It is at this point far from clear whether the d3s or 1d iv will be better at high noise, and considering the vast differences between chips on those cameras and the ones we are discussing, it isn't very relevant.
11/04/2009 03:57:11 PM · #28
To robshookphoto,

Of course shooting in jpg and using the NR built-in camera is going to affect the test. The NR filter is going to be completely different from one brand to another. I strongly suggest to visit the dpreview forum. There are plenty of threads about the ISO performance for both D300s and Canon 7D. Maybe I will post some pics later this week. The photos I took at ISO 1600 and 3200 are way cleaner than the pics shown in the posted test.

I do not owe the 7D, but I have seen quite a bit of pictures showing some significant chroma noise at ISO 3200 (see dpreview forum).

Max

Message edited by author 2009-11-04 15:58:53.
11/06/2009 10:47:39 PM · #29
My experience with the 7d and d300 (not "s") is congruent with the test posted. My roommate owns the 7d, and I have unlimited access to the d300 through my university. The upgrades to the d300s would have to huge to put it in the same low noise range as the 7d.

My main problem with the photographic community is that it feels like camera companies manage to get people they don't pay to jump through hoops to justify their blind support of said companies. I split my time shooting between the d3 and multiple canon bodies because, quite simply, one company doesn't satisfy all the needs for my photography.

Originally posted by msieglerfr:

I have seen quite a bit of pictures showing some significant chroma noise at ISO 3200 (see dpreview forum).


This is my quick, handheld test of iso 3200 on a store's display 7d several months ago. You can't get much more real-world than this.
//www.flickr.com/photos/robshookphoto/4000439010/

Message edited by author 2009-11-06 22:48:58.
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