The Rebel XSi seems to be a combination of the Rebel XTi and the EOS 40D, with a few new features of its own thrown into the mix. It has the basic form of the XTi with the same shutter speed range, the same flash sync speed and the same ISO range. However it also has features of the EOS 40D such as Live View, Highlight Tone Priority, High ISO Noise reduction, Spot metering, a 14-bit A/D converter and viewfinder ISO display.
The performance is perhaps closer to the 40D than to the XTi. Resolution is measurably higher, though the difference in practice is quite small. Noise appears to be a little higher, perhaps because of the smaller pixels.
Overall the XSi is an improvement over the XTi, though more in terms of features than image quality, which is good in both cameras. Upgrading from the XTi to the XSi makes sense if you need things like spot metering, a larger LCD and Live View, but if you're looking for a noticeable leap in image quality, I don't think you'll see it. If you want a significant increase in image quality, you'd probably need to look at a full frame DSLR like the Canon EOS 5D
Bob Atkins
more : photo.net
Langganan:
Posting Komentar (Atom)
0 komentar:
Posting Komentar