Canon 40D - EOS 40D DSLR User Manual download pdf

Canon EOS 40D Digital SLR Camera Review

lmost immediately upon the announcement of the Canon EOS 40D, the most-frequently

asked question I have been receiving since the announcement of the

Canon EOS 400D/Rebel XTi

one year ago nearly disappeared from my inbox. Until this time, the lower end Canon DSLR

had a couple of desirable feature advantages over the 40D's predecessor, the

Canon EOS 30D.

Now, aside from size (which may or may not be an advantage), weight and cost, the 40D is

clearly the better camera in this comparison.

he 40D's very long list new/improved features makes this camera a very nice upgrade over

the XTi, the 30D and their predecessors. Though most people are not going to find any one

new or improved feature compelling enough to justify an upgrade from the 30D, combine all

of these features and the Canon EOS 40D begins looking very attractive. There are a lot of

20D owners who sat out the 30D upgrade cycle who will give serious consideration to

bringing a 40D home.

he 30D set the bar high. It is an all-around great camera that delivers the great image

quality Canon is legendary for. The Canon EOS 40D announcement was one of the most-

anticipated Canon EOS announcements ever. We had high hopes for the 30D's upgrade.

When reading the announcement, I was quickly let down/disappointed to hear that the

XTi/400D's sensor was the basis for Canon's new-at-this-time camera. Not that the XTi/400D

sensor is bad - it is very good - 10.1 megapixels is a very high resolution image - this is

plenty of detail for most uses. I was just hoping for a more radical upgrade. I quickly took

heart when I learned that improved microlenses were positioned over this sensor - and

that 14 bit capture had been implemented - along with the expected DIGIC III processor.

With the same sensor density, the 40D resolves detail very similarly to the XTi/400D -

and better than the 30D. These are the results I expected. You can visually compare the

resolution difference using the

ISO 12233 Resolution Chart crop sample comparison tool. This

comparison was shot using the

Canon EF 200mm f/2.8 L II USM Lens - I suggest using an f/4

aperture for comparing, but most below f/8 will work fine. Several other DSLR results are

available for this lens, so other comparisons can be made as well.

In real life shots, the difference between 8 and 10 megapixel images is not big. The extra

image detail is always welcomed, but will not be a sole reason for most people to upgrade

from a 20D or 30D.

o reach this resolution in an APS-C sized (1.6x FOVCF) sensor, the XTi/400D and 40D sensors

are required to be the most-dense of any found in a Canon DSLR body. As sensor size

decreases, pixel-level image quality often decreases as there is less light reaching each

individual pixel well. The visible difference is often in the form of noise - especially high ISO

noise. We saw this in the XTi/400D compared to the 30D.

he good news is, the Canon EOS 40D essentially matches the 30D's low noise

capabilities. The process of determining this was not exactly straight forward as I've

determined that the 40D's sensor is about 1/6 to 1/3 of a stop less sensitive than the 30D's.

his means that images shot with identical shooting parameters (shutter speed, aperture &

ISO) are not exposed exactly the same. I should note here that the 40D's metering is fine -

this change does not cause underexposed images. In my eyes, the 40D noise is equal to the

30D right up through ISO 3200 when identical shooting parameters are used. I'd rate the 40D

slightly better at ISO 800. But, after making the exposures identical (+1/6 EV on the 40D),

the 30D has a sli

ht ed

e at ISO 1600 and 3200 - and the two are about even at ISO 800.

Review

Sample Pictures

1 2 3 4 5 6 7 8 9 10

Summary of Contents

Page 1

Canon EOS 40D Digital SLR Camera Review Almost immediately upon the announcement of the Canon EOS 40D, the most-frequently asked question I have been

Page 2 - Macro USM Lens

In the USA, the Canon EOS 40D is currently shipping in a body-only configuration as well in a kit that includes the Canon EF 28-135mm f/3.5-5.6 IS US

Page 3

The above 100% sample crops were taken under controlled conditions using a Westcott Spiderlite TD5 with 5000k fluorescent bulbs and a softbox. Identi

Page 4 - 580EX II

sensor) on a clear day. Increase the 40D exposure to match the 30D's and the noise results will look similar to each other. Still quite good. Th

Page 5

As made obvious in the comparison picture above, the viewfinder is not the only physical change Canon has made in the 40D Canon EOS 40D. The new 3&quo

Page 6

sensor cleaning to remain one of my often-used menu options. Canon's 40D White Paper references the 40D's sensor cleaning system to that o

Page 7

manual mode (the mode I shoot in if light conditions are constant) are available. The three new ones are labeled C1, C2 and C3. Setup the camera for

Page 8

Autofocus is one of the most important camera functions for most people - OOF (Out of Focus) shots are usually of no value regardless of their image

Page 9

If you are shooting in portrait orientation, especially if you are shooting in this orientation for a long period of time, an accessory portrait/ver

Page 10

The smaller size is an advantage when carrying/packing/storing the camera. However, I much prefer the larger grip on the 40D when actually using the

Canon 40D - EOS 40D DSLR User Manual

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Canon 40D - EOS 40D DSLR User Manual

Browse online or download User Manual for Software Canon 40D - EOS 40D DSLR. Almost immediately upon the announcement of the Canon EOS 40D

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