This
is the first of
a new 10 part series of posts titled ‘Discovering Ergonomics’ consisting of a
distillation of ideas and concepts which I have developed over the last five
years. Most of the material has already been published on this blog. However I
have gathered up and summarised my findings into a more condensed and easily
accessible form.
Ergonomics
is defined by Wikipedia as:
The
study of designing equipment and devices that fit
the human body, its movements and its cognitive abilities.
Thus we can talk about ergonomics as a type of study
or applied science.
The word ergonomics is also used to describe
characteristics of a device which are intended to maximise productivity.
Thus a camera can be evaluated as to how well it ‘fits
the human body, its movements and cognitive capabilities’.
Ergonomics is an important part of the overall user experience. A camera might have good picture quality but if
it has poor ergonomics it is likely to stay at home not making any pictures at
all.
I have been studying and writing about camera
ergonomics for the last five years.
I
evaluate cameras
with reference to four sets of characteristics:
1. Specifications, features and target user group. It is easy for reviewers and prospective
buyers to compare specifications and features. In fact many reviews are little more than a regurgitation of the manufacturer's posted specifications.
2. Picture quality.
There are now ways to evaluate image quality which enjoy reasonably wide
acceptance. The basic underpinning of these is the signal to noise ratio which
can be measured.
3. Performance.
Performance is easy to measure. Items typically measured include shot to
shot time with JPG or RAW capture, focus acquisition time, zoom speed time, OIS
(VR, IS) effectiveness, AF accuracy in
single shot and continuous modes, burst frame rate, follow focus ability with
moving subjects, EVF blackout time, buffer capacity, write to card time…..and
so forth.
4. Ergonomics. This
is by far the most difficult aspect of camera capability to characterise,
describe and measure.
I believe this is because the way forward to better
picture quality and performance is fairly straightforward conceptually (for
instance, less noise, faster processing) even though the technological
challenges are considerable.
The pathway to better ergonomics has the opposite
characteristics. It is conceptually complex and poorly understood by camera
makers (as evident by the atrocious user experience provided by some cameras)
but presents no particular technological challenge. It is just as easy to put a
dial in the right place as the wrong place.
But camera
makers have a great deal of difficulty figuring out where that right place
might be. The evidence for this is the many different locations where control
dials can be found on modern cameras.
It appears to me that they are not making good use of
applied functional anatomy in their design processes.
They are mostly good at solving technological problems**
but manage conceptual challenges very
poorly, often seeming oblivious to the possibility that their cameras might be
really frustrating buggers of things to use.
I say this because they often churn out successive models with the same
egregious fault, be it an incomprehensible menu system, absence of a
viewfinder, an awkwardly located control dial or some other frustrating
impediment to a satisfying user experience.
All the camera makers seem to me like travellers
unaware of their destination. Therefore
they are always lost. They do not know which way to go and would not recognise
their destination even if they accidentally fetched up there.
(** Not always though. For instance the Canon G5X
needs a little rest after each RAW shot and the Nikon P7800 a recuperative siesta.)
The study of camera ergonomics lacks a framework of
concepts, principles, language and specifications.
The word ‘ergonomics’ often appears in user reports
and professional reviews of cameras.
But nowhere do the authors of these reports and
reviews explain what they mean by the word ‘ergonomics’.
My work seeks to provide a framework on which such
meaning can be constructed, leading to a method for evaluating and scoring a
camera’s ergonomics.
I work on the principle that ‘What you don’t count, doesn’t count’.
I have discovered that it is possible to write an
ergonomic specification for each phase of camera use such that a camera can be
evaluated and scored with respect to specific capabilities.
In this series of ten posts titled “Discovering
Ergonomics” I will describe how I do this.
Before going further I need to raise some issues which
might affect the reader’s engagement with the material.
Communication
modalities Using a camera involves holding, viewing
and operating, which is a tactile experience.
This series of posts of necessity uses words and
pictures, presenting the reader with a very different type of experience.
I therefore urge the reader to supplement his or her
reading with thoughtful handling of any camera(s) to which they may have access.
Personal
experience of the reader
Every reader will come to this material from some kind of background,
unknown to me. This will I suppose, often involve familiarity with some kind of
camera(s) and ideas derived from experience about what works well in cameras.
Inevitably one is likely to like/dislike or
agree/disagree with the material which I present.
I just ask the reader to keep an open mind while
reading and accept the possibility of new discoveries.
Experience
of the writer I
am an amateur photographer who has been using cameras for 62 years.
In that
time I have used almost every type of camera available to consumers.
I am independent.
I have no affiliation with any organisation which
makes, markets or sells photographic equipment. I buy equipment new at retail
prices for testing and sell it on eBay when testing is completed.
I have no partisan leanings towards or away from any
brand or manufacturer. I have tried them all.

Just found your site. Great work! Will follow your blogspot from on. THE most comprehensive words on ergonomics I've been reading. Thank you!
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