review of canon eos 40d


Canon on August, 2007 introduces its latest digital SLR for advanced amateurs and semi-professionals: the EOS 40D.

The Canon EOS 40D is the first in this line to have 10 mega pixels. The sensor is most probably based on the Canon EOS 400D and shares its vibrating anti-dust front filter. It has been that it is rather less noise-free than the former 8 and 6 mega pixels models. It has a tendency to underexpose and to produce results, which are flat.

The Canon EOS 40D implementation is superior to the Canon EOS 400D,and resembles the Canon EOS 5D more in tone curve and color rendering. It also has a very mild anti-aliasing filter, leading to much crisper reproduction of near-extinction details.
The EOS Integrated Cleaning System combats sensor dust, while a strong magnesium alloy body with weather resistance ensures lasting durability.
The Canon EOS 40D has some odd noise reduction qualities, which mean that 100 ISO is excellent, 200 ISO is good, 400 ISO is a bit iffy then 800 ISO suddenly gets smooth again, 1600 ISO is acceptable and 3200 ISO is for emergencies only. At 800 ISO, though, you lose the crisp details. The optimum is probably 200 ISO.
A key advancement of the Canon EOS 40D is its new 9-point cross-type AF system. All nine AF points can achieve focus on both horizontal and vertical planes. A central AF point is capable of accurate focusing up to aperture f/2.8, with eight outer points working up to f/5.6. In response to requests, the dedicated AF Start (AF-ON) button allows photographers to execute auto focus with their thumb.



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