CAMERA ERGONOMICS
Ergonomic evaluation of the Canon EOS 60D
Not bad but not excellent
Author AndrewS June 2012
Introduction For many years my cameras of choice were
Pentax SLR's starting with the Spotmatic.
But Pentax was slow to embrace autofocus so in 1989 I switched to Canon
EOS, starting with the 630. That was
followed by the 10, 50E, 1V and 33V. In the digital era, I have owned and used the
20D, 40D, 450D and currently the 60D
with a range of zoom lenses.
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| Photo 1 |
User level Looking at it's price point, specifications
and features I rate the 60D as a camera intended for use by photographers
at Level 4 (Expert/Controller, frequent
use). This is not an entry
level/snapshooter camera. Photo 1 shows the 60D basic hold.
Image Quality and
Performance This is an ergonomic
review but I will make brief reference to the other two pillars of camera
evaluation. Image quality has been exhaustively analysed elsewhere. Suffice to
say it is good enough for almost any photographic project. Performance is also
very good in all respects except autofocus accuracy. I find that particularly
at the wide end of zoom lenses, AF is erratic, sometimes focussing incorrectly
even in good light. I have experienced
this problem to some degree with every Canon EOS camera which I have owned.
Ergonomics There are four phases of camera use, Setup,
Prepare, Capture and Review.
Setup Phase
mostly involves selection of menu options. The 60D menus are well laid out and
easy to navigate. Submenu options never occupy more than one screen so
scrolling down in search of an option is
not required. My Menu takes user allocated options for quick access. This is a
much better arrangement than some other cameras which automatically shift
recently used items to the My Menu screen. Compared to some other cameras, the
60D's menus are a model of clarity.
Prepare Phase AF Mode, Drive Mode and Metering Mode are
adjusted by the Press Button>Scroll Wheel>View LCD Panel method. This gets the job done but Set and See Dials/Levers use fewer
actions and can be set without having to switch the camera on. Other parameters
are adjusted via the Q Menu. This also gets the job done but a more streamlined
interface would be possible if each item in the Q Menu could
be user set.
Capture Phase The three main descriptors of ergonomics in this Phase are Holding,
Viewing and Operating.
Holding The 60D is a nice camera to hold. It is a
good size for average adult human hands. It has a well shaped handle and thumb
rest. It conforms to the hand much better than many smaller DSLR's and Compact
System Cameras.
Viewing Both the eye level viewfinder and the monitor
screen are clear and bright, giving an excellent view of the subject. Camera
status indicators are clearly visible in either viewing mode. The only downside
of the viewing arrangements on this camera are those inherent in the DSLR
concept, namely that eye level viewing and monitor (Live) viewing are separate
user interfaces with a different AF system and different presentation of camera
status data. This arrangement is not bad. However mirrorless (or Sony SLT)
cameras offer a seamless segue from eye level to monitor viewing.
Operating For the Level 4 photographer who wants to
take control of camera functions in the Capture Phase, there is a substantial
task list to be completed in a few seconds. The specific items on the list will
vary somewhat with individual preference, but deliberative practice will
typically include the following:
* Hold camera steady with both hands, without changing grip.
* View subject in the viewfinder without interruption,
compose, zoom.
* Shift active AF area if required, or center focus and recompose, or AE + AEL,
or AF + AFL.
* Adjust Aperture in A Mode, or Shutter Speed in S Mode, or
Program Shift in P mode, or Aperture + Shutter Speed in M Mode.
* Adjust ISO.
* Adjust Exposure Compensation if required.
* AF or MF > AE > Capture.
Let us analyse how the 60D goes about completing this task
list.
The left hand is busy supporting the mass of the lens plus
zooming and manual focussing if required.
The right thumb has to play an important part in gripping
the camera but also has carriage of three Capture Phase tasks.
1. Start/lock AF with the AF-ON button. This button is just
about perfectly placed on the 60D, making back button AF start/lock a smooth
operation. I would prefer the button to
be slightly more prominent to make it easier to operate without having to flex the
interphalangeal joint, but it works well enough as is.
2. Shift active AF area. This task is allocated to the 8 Way
Controller. To engage with the 8 Way Controller the thumb has to drop down 50
mm from base hold position. In order to do this the right hand has to release it's grip on the
camera, forcing the left hand to take the full mass of the camera and
disrupting the Capture Phase work flow. It
is also difficult to reliably hit the exact spot on the controller required to
select intermediate AF sensor positions.
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| Photo 2 |
These arrangements for shifting active AF area and Exposure
Compensation get the job done. Ergonomically the process is not bad but it could
be upgraded to excellent with some minor changes to the user interface.
This camera has plenty of space for a JOG Lever, the optimum
location for which is indicated by the white X in Photo 2. The existing
buttons would have to be slightly relocated.
The thumb has only to move 12 mm
to the left, by side to side movement at the carpo metacarpal joint to engage
with and operate the JOG Lever. This is the ideal user interface for shifting
active AF point. The JOG Lever can also make itself useful for scrolling around
items in Setup, Prepare and Review Phases of use.
Exposure Compensation can be moved up to the index finger's
operational zone, as described below.
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| Photo 3 |
* The horizontal distance from the center of the Shutter Release
Button to the center of the ISO button is 27 mm. This is a stretch too far for
many people whose metacarpo phalangeal joint may have just average flexibility
for side to side movement.
* ISO is a Primary Exposure Parameter, which should be
easily adjustable in the Capture Phase of use. But the ISO button is in the
middle of a row of identically shaped (apart from a tiny little nipple on the
ISO button) and sized buttons, the other three of which are allocated to
Prepare Phase actions.
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| Photo 4 |
This camera has plenty of space to fit a much more efficient
layout of User Interface Modules for use by the right index finger. One option
is the Quad Module system which could be implemented in any of several
different ways, but one which fits the projecting handle design of the 60D is
shown in Photo 4. This system allows the index finger to rapidly
control the primary exposure parameters (Aperture, Shutter Speed, ISO), the
secondary exposure parameter (Exposure Compensation), AF if desired, AE and
Capture, all with minimal physical movement, without disrupting view or grip.
There is a division of labour between the thumb and index finger with the thumb having control of AF if desired and
focus area position.
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| Photo 5 |
The UIM's in Photo 4 are placed with a similar concept in mind.
They are at the same height so the finger can move directly from one to the
other and they are close, but not too close. I spent a lot of time relocating
UIM's on mockups to arrive at the disposition shown here. The horizontal
distance from the center of the Shutter Release Button to the center of either
the ISO or EV Buttons is 21 mm, an easy reach for most people. These two
buttons have a different shape and feel
so they are easily located by touch. In a working camera their functions should
be user selectable from a wide range of options. There are plenty of photographers who would
want to use these buttons for different purposes.
Photo 5 shows another version of the Quad Module system
on a Sony camera. In this case we see a good idea poorly executed, with excessive distance
between the Scroll Wheel and the other Modules which are also at a different
height and in a different plane.
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| Photo 6 |
Summary I have been using Canon's mid range SLR's and
DSLR's for many years. Apart from chronic autofocus accuracy problems they have
all functioned reasonably well. The thing which I am not seeing is evolving
improvements to the user interface, in other words, ergonomics. There are
changes, the monitors grow and acquire swivel. The buttons move around, mostly
to allow the larger monitors. But the process of controlling the camera in
Capture Mode has not improved. In fact, in some respects such as the loss of
the JOG lever, it has gone backwards.
If Canon revised the user interface of the 60D in the ways
which I have suggested the experience of operating this camera could improve from "Not Bad" to
"Excellent". There would be no cost penalty. Good ergonomics costs no
more than poor ergonomics. Poorly located UIM's cost just as much as well
located ones.






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