Post by C J CampbellPost by Focushttp://forums.dpreview.com/forums/read.asp?forum=1034&message=31436871
I was looking over the reactions as some folks seem to think that it's OK
for Nikon to over expose in MM. But is it really?
"Nikon 3D Color Matrix Metering II with Scene Recognition System: Nikon's
renowned 420-pixel RGB 3D Color Matrix Metering II, teamed with the
exclusive Scene Recognition System, evaluates images, referencing an
on-board database of over 30,000 photographic scenes, for unmatched exposure
accuracy."
A database of 30.000 photos? None of them had a clear, sunny sky in them?
That hardly sounds like a camera that would blow out skies like a P&S
shooter, does it?
So, Nikon: explain yourself.
Most matrix metering systems nowadays will give you a good exposure --
for at least part of the picture. However, it is impossible for any
camera when faced with both bright sky and shadows to properly expose
for both. It is going to pick one or the other.
The difference between a good photographer and a snap-shooter is the
ability to understand and deal with the limitations of what cameras can
do. That includes a good understanding of lighting problems and what to
do about them.
The thing is though, I wouldn't call a simple sunlit landscape a
"lighting problem". After portraits, sunlit landscapes would probably
be the next most commonly shot thing - by pros, keen photographers, and
mum & dad snapshooters.
I've taken countless landscapes myself, on equipment ranging from 35mm
rangefinders with no light meter, through to mid-range DSLRs. Yet, I
never had a single problem metering this type of shot, until I got a
DSLR. Getting these shots nailed ain't rocket science. If you have no
meter, sunny 16 and open up a bit if it's hazy/cloudy. On my old
cameras that had meters, I could always trust it - even using slide
film. Your gut feel would tell you if a shot warranted adjustement of
the exposure (snowfields, beach etc), but a simple sunlit landscape
wasn't one of those situations.
Manual mode and sunny 16 tends to go ok with my digitals, but you
should still be able to trust the meter, and IME, you can't. Trust the
meter and you'll get a white sky pretty much every time. This is what
I've found with my Canon and Samsung/Pentax gear, and from what I've
seen from others with the 2-digit Nikon bodies, they handle it even
worse than Canon & Samsung/Pentax.
When I was selling cameras, it would be a fairly regular occurrence
that people would bring Nikon DSLRs in claiming they were faulty
because of this very fault. I'm not talking about the mum & dad
snapshooter with their first DSLR camera - they probably don't know
enough to recognise that they are getting overexposure. I'm talking
about people who are seasoned photographers, professionals etc.
Yes there are workarounds, and someone with a bit of experience knows
that if they go manual, put negative EC on, bracket, or use the
histogram they can get a correct exposure. But the fact remains that
auto exposure, especially in a matrix mode that supposedly analyses the
photograph and adjusts for the type of photo, should not get something
as common as a sunlit landscape fundamentally wrong.
So I have not owned one of the "two digit" Nikons since the D70, which
did not seem to have the exposure problem you describe. It does not
seem to be a problem on the outdoor landscapes you see on review sites.
Neither do I see the problem on photo sharing groups.
I mean, far be it from me to suggest "user error," but there it is. A
camera salesman (who just might be interested in selling more expensive
cameras) and one user who see this problem, against everybody else who
does not. Especially with a user who has expressed extreme
dissatisfaction with every camera he has handled -- I have never seen a
guy who has gone through so many cameras in such a short period of
time. So I hope you will understand that if Focus complains about his
camera, it is pretty much getting to be "same-old, same-old."
Sometimes people who use cameras like the D90 will use S mode and then
run out of apertures, which can cause severe under- or over-exposure.
But I would not expect that a professional camera salesman or a pro
shooter like Focus to make a tyro error like that, eh?
However, it is very difficult to address yours and Focus' assertion
that there is something wrong with the D90 without seeing some actual
photos, along with additional information such as what metering mode
the camera was in, whether it was in P (for Professional), M, A, S, or
one of the built-in programmed modes, whether it was shot raw or JPG,
etc. So far, both you and Focus have been less than forthcoming in
demonstrating the actual problem.
And yes, landscapes pose lighting problems, not least of which can be a
need for fill flash for the foreground. If you are exposing for the
foreground, you may well get a washed out sky. No two ways about it.
This is not a digital problem; it is even worse with film. Camera
sensors, both digital and film, can only address a very limited range
of stops. A "pro" would know this.
For that matter, a "pro" would know how to calibrate the exposure on
his camera, anyway, using a white sheet of paper and an incident light
meter, so that he would know whether his camera consistently over- or
under-exposes and whether it is a common tendency across the board for
a particular model or specific to a particular body. A "pro" would also
know that this can change over time.
So, while I am not calling you a liar, I do point out that your
experience appears to be contrary to that of most users.
--
Waddling Eagle
World Famous Flight Instructor