Source: Tom's Guide | Keywords: camera, DSLR, canon | Themes: Digital Cameras
6. Dynamic Photos
Due to their technical characteristics, digital sensors have a tendency to “burn” or clip highlights much more quickly than negative film does (which has more of a tendency to lose shadow detail). To fight this phenomenon, which affects users of JPEG files in particular (using RAW avoids information loss), manufacturers now equip their cameras with systems that give the impression of increasing the difference between shadows and highlights while preserving detail in each).
Canon’s Ingenious System Again, the 450D is the most effective. Its “Highlight Priority” mode “extends” dynamics by approximately 2/3 of an LV, which is far from negligible. Since the dynamic range of a system is invariable, this system consists of underexposing the shot to preserve more detail in the bright areas and working on the image curve (sampled on 14 bits) to lighten the shadows slightly to reveal more detail.
On the K200D, the system is similar and results in even greater gains (around 1.3 LV on average) due to the low dynamic range of the CCD sensor compared to the CMOS used in the 450D. Canon has the advantage, though, even if the progress made is less flagrant. Also, the greater the modification, the stronger the impression of loss of contrast will be.
Sony’s Dynamic Range Optimizer and Nikon’s D-Lighting At Sony, the function that does this job is called DRO (for Dynamic Range Optimizer). Nevertheless, since the α350 has a slight tendency to underexpose (see below), the system is limited to increasing details in shaded areas. The system can be turned on before taking a shot and works fairly well, but it has the unfortunate consequence of adding grain to shaded areas at high sensitivity – so go easy on the adjustments. This is also true of the other cameras we tested, but it’s less perceptible.
At Nikon, the function is called “D-Lighting.” Here, again, the camera simply adjusts the density curve to either boost detail a little in shaded areas or boost density in light areas. The system is also available for post-processing with a choice of three effectiveness settings.
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The Nikon D60 and Canon EOS 450D/Digital Rebel XSi are two different cameras.
I think my employer is bad for forcing me to double check and proofread my work. Dr. Tom doesn’t even require you to care about your job.
BTW, for camera review, I’d go to dpreview.com and not Tom’s.
This should be "...The Nikon D60, Canon EOS Rebel XSi/450D, Pentax K200D and Sony α350.
Technically, the XTi(400D) was the first to implement the eos integrated cleaning system; the newer 40D uses the same system.
I fail to see why anyone would want/need a physical button for changing between RAW and JPEG shooting modes.
I don't know if the other software has this, but Canon's Digital Photo Professional also has good aberration correction features (distortion, CA, light falloff, etc.)
If you shoot with Canon, another good review site is http://the-digital-picture.com/
Technically, the XTi(400D) was the first to implement the eos integrated cleaning system; the newer 40D uses the same system.
Only Olympus Dslr's have the most effective dust removal system and they were the first that designed it and implemented it
The first model that had this feature was the Olympus E-1 back in the late 2003
aside from above comment on the dusk cleaning system is pioneered by olympus, the "New" DSLR in this guide are hardly new.. all of them are announced back in Jan(and as we ALL know, 1/2 yr is a long time for tech).. there are new budgeted DSLR released recently such as canon 1000d, olympus 420/520.
40D, e200, a430, 500r, g650, l,m,n,o,p,q...
I don't know about anybody else, but it would have made the article a lot easier to follow if they just referred to the cameras by their manufacturer name (after initially identifying the models). When the last reference to (or photo of) a camera by it's manufacturer is 2 pages back, it's a pain to figure out which camera they are talking about. Unless you're a serious hobbyist or professional, it's hard to follow the reviews when they switch between modes of reference. We all knnow the names Sony, Pentax, Nikon, and Canon; stick with them for clarity.
40D, e200, a430, 500r, g650, l,m,n,o,p,q...
I don't know about anybody else, but it would have made the article a lot easier to follow if they just referred to the cameras by their manufacturer name (after initially identifying the models). When the last reference to (or photo of) a camera by it's manufacturer is 2 pages back, it's a pain to figure out which camera they are talking about. Unless you're a serious hobbyist or professional, it's hard to follow the reviews when they switch between modes of reference. We all knnow the names Sony, Pentax, Nikon, and Canon; stick with them for clarity.
40D, e200, a430, 500r, g650, l,m,n,o,p,q...
I don't know about anybody else, but it would have made the article a lot easier to follow if they just referred to the cameras by their manufacturer name (after initially identifying the models). When the last reference to (or photo of) a camera by it's manufacturer is 2 pages back, it's a pain to figure out which camera they are talking about. Unless you're a serious hobbyist or professional, it's hard to follow the reviews when they switch between modes of reference. We all knnow the names Sony, Pentax, Nikon, and Canon; stick with them for clarity.
I'm surpirsed that Olympus was not included in this review. They have some of the lightest bodies that are cost effective. For those interested in getting into photography - Camera bodies are not as important as Lenses and Olympus makes the best lenses in the market.
Unknown
Yes, lens with no camera is great.