#Canon eos rebel t3i raw full
#Canon eos rebel t3i raw iso

Some low-cost DSLRs wonвЂ™t even focus in such dim light. More impressive was that the T4i could focus in about 1.28 seconds at the dimmest light level (вЂ“2 EV) in our test. ThatвЂ™s not the fastest DSLR weвЂ™ve seen, but itвЂ™s still impressive. In very bright light it proved fast, focusing in 0.33 second in the brightest (12 EV) portion of our test. Our autofocus test showed that the T4iвЂ™s regular phase-detection AF functions on par with what one can expect from an entry level DSLR. ThatвЂ™s well below our cutoff of 8 for this lower-is-better test. In our color accuracy test, the T4i walked away with an Excellent rating thanks to an average Delta E of 6.5.

#Canon eos rebel t3i raw iso

Depending on the image content, it might not be possible to bring it down to a noise level weвЂ™d rate as acceptable, but given our strict standards, some people may find some images shot with the T4i at ISO 25,600 usable, especially at magnifactions lower than 100 percent. Since Canon applies increasing amounts of noise reduction as the ISO increases, thereвЂ™s not much more room to bring noise down further at ISO 25,600. It doesnвЂ™t reach an Unacceptable noise rating until its highest sensitivity of ISO 25,600. Noise remains at a Low or better rating from the lowest sensitivty setting of ISO 100 through the cameraвЂ™s sensitivity halfway point of ISO 1600. Noise suppression is probably the T4iвЂ™s biggest strength in terms of imaging performance. By ISO 800 this had fallen below the 2500 line cutoff for an Excellent rating. In our resolution test, the T4i served up 2560 lines per picture height, just enough to solidly earn it an Excellent rating. With nearly identical results in color accuracy and resolution, thatвЂ™s a pretty impressive achievement.

#Canon eos rebel t3i raw full

The T4i managed to keep noise at a Low or better rating a full two stops higher on the sensitivity scale than its predecessor. Though the EOS Rebel T4iвЂ™s overall Image Quality rating of Excellent from ISO 100 through ISO 400 matches that of the T3i, donвЂ™t let that fool you. At the same time, Canon also managed to improve the T4iвЂ™s noise handling over its predecessor. While this system canвЂ™t match the speed of continuous focusing you can get with SonyвЂ™s transmissive mirror system found in that companyвЂ™s DSLRs, it is a very big step in the right direction for Canon. When using such a lens, you gain reasonably fast continuous autofocus during live view or video shooting. The new AF system works only with CanonвЂ™s new STM lenses that use stepping motors to move the elements inside the lens to achieve focus. With the EOS Rebel T4i ($849, body only), improvements include a new hybrid autofocus system that embeds phase-detection points on the CMOS imaging sensor, much like NikonвЂ™s System 1 cameras.

Even though we didnвЂ™t do that this year, it wouldвЂ™ve been true if we had Canon always manages to make improvements in its Rebel line. Nearly every year, we have a cover declaring the best Rebel ever.