| Author |
Message |
Mickey Mouse
Guest
|
 Posted:
Fri Nov 11, 2005 5:41 am Post subject:
D70s - Black corners |
|
|
I've taken a few test shots of clouds with my D70s and I notice that the
four corners of each photo is black. Why is this, is something wrong? The
D70s is only a week old.
Camera set to auto
Lens: 18-70 (pictures taken at 18mm)
iso 250
white balance A
polarizing filter Hoya 67mm PL-CIR
UV filter Hoya 67mm (uv0)
image quality
nef raw
jpeg fine
jpeg normal
jpeg basic
nef+jpeg
All five shots have blackening at all four corners
Mickey
|
|
| Back to top |
|
 |
MarkČ
Guest
|
| Posted:
Fri Nov 11, 2005 5:41 am Post subject:
Re: D70s - Black corners |
|
|
Mickey Mouse wrote:
| Quote: | I've taken a few test shots of clouds with my D70s and I notice that
the four corners of each photo is black. Why is this, is something
wrong? The D70s is only a week old.
Camera set to auto
Lens: 18-70 (pictures taken at 18mm)
iso 250
white balance A
polarizing filter Hoya 67mm PL-CIR
UV filter Hoya 67mm (uv0)
image quality
nef raw
jpeg fine
jpeg normal
jpeg basic
nef+jpeg
All five shots have blackening at all four corners
Mickey
|
Your post implies that you are using BOTH the UV filter, AND the polarizing
filter together.
If so, then this would certainly lead to vignetting as you
describe...expecially at the wide end of your zoom.
If you're using a polarizer, you should mount it alone...NOT in addition to
the UV.
Use one or the other.
Not both at the same time.
With some longer lenses and extra thin filter mounts, you can get away with
mounting two, but the polarizer should do away with the need for the UV.
It's of no benefit...
-M2 |
|
| Back to top |
|
|
Steve Wolfe
Guest
|
| Posted:
Fri Nov 11, 2005 5:41 am Post subject:
Re: D70s - Black corners |
|
|
| Quote: | I've taken a few test shots of clouds with my D70s and I notice that the
four corners of each photo is black. Why is this, is something wrong?
The D70s is only a week old.
Lens: 18-70 (pictures taken at 18mm)
polarizing filter Hoya 67mm PL-CIR
UV filter Hoya 67mm (uv0)
All five shots have blackening at all four corners
|
Wide angles and multiple filters sound like a guaranteed recipe for
vignetting, which is what you're seeing. You can take the filters off, and
the problem will likely go away. If you really need both filters, you can
try a longer focal length, and/or a smaller aperture.
steve |
|
| Back to top |
|
|
Mickey Mouse
Guest
|
| Posted:
Fri Nov 11, 2005 5:41 am Post subject:
Re: D70s - Black corners - Thanks |
|
|
So obvious, the answers to such a dumb question. Nice to know that when you
need an answer you just have to ask. Thankyou.
Mickey
Next Question, I've read that many nikon lenses produced before 1977 are
compatible with the D70 body if a $35 conversion is used to avoid damage to
the body. Also, newer lenses (less than 25yrs old) work just fine with the
D70. Is this also true for the D70s and how can you tell how old a lense
is?
Reference: Nikon D70 Digital Field Guide.
Mickey |
|
| Back to top |
|
|
Bill Funk
Guest
|
| Posted:
Fri Nov 11, 2005 5:41 am Post subject:
Re: D70s - Black corners |
|
|
On Fri, 11 Nov 2005 13:06:17 +1100, "Mickey Mouse" <.> wrote:
| Quote: | I've taken a few test shots of clouds with my D70s and I notice that the
four corners of each photo is black. Why is this, is something wrong? The
D70s is only a week old.
Camera set to auto
Lens: 18-70 (pictures taken at 18mm)
iso 250
white balance A
polarizing filter Hoya 67mm PL-CIR
UV filter Hoya 67mm (uv0)
image quality
nef raw
jpeg fine
jpeg normal
jpeg basic
nef+jpeg
All five shots have blackening at all four corners
Mickey
|
Try at a slightly longer focal length.
You may be getting some vignetting from the two filters; try with none
or just the polarizer. You shouldn't need the UV filter anyway.
--
Bill Funk
Replace "g" with "a"
funktionality.blogspot.com |
|
| Back to top |
|
|
Mike G.
Guest
|
| Posted:
Sat Nov 12, 2005 5:40 am Post subject:
Re: D70s - Black corners - Thanks |
|
|
Mickey Mouse wrote:
| Quote: | So obvious, the answers to such a dumb question. Nice to know that when you
need an answer you just have to ask. Thankyou.
Mickey
Next Question, I've read that many nikon lenses produced before 1977 are
compatible with the D70 body if a $35 conversion is used to avoid damage to
the body. Also, newer lenses (less than 25yrs old) work just fine with the
D70. Is this also true for the D70s and how can you tell how old a lense
is?
Reference: Nikon D70 Digital Field Guide.
Mickey
Check this site. May be more than you wanted to know, but the answer is |
there somewhere.
Nikon F-mount index
http://www.zi.ku.dk/personal/lhhansen/photo/fmount.htm |
|
| Back to top |
|
|
Paul Rubin
Guest
|
| Posted:
Sat Nov 12, 2005 5:41 am Post subject:
Re: D70s - Black corners - Thanks |
|
|
"Mickey Mouse" <.> writes:
| Quote: | Next Question, I've read that many nikon lenses produced before 1977 are
compatible with the D70 body if a $35 conversion is used to avoid damage to
the body. Also, newer lenses (less than 25yrs old) work just fine with the
D70. Is this also true for the D70s and how can you tell how old a lense
is?
|
Yes, non-AI lenses won't mount on either camera (they can damage it).
Non-CPU lenses with the AI mount (basically all MF lenses except a few
special ones like the 45/2.8 AI-P) will mount on the camera but you
get no exposure metering whatsoever, not even manual metering. |
|
| Back to top |
|
|
jim
Guest
|
| Posted:
Sat Nov 12, 2005 5:41 am Post subject:
Re: D70s - Black corners - Thanks |
|
|
"Mickey Mouse" <.> wrote
| Quote: | So obvious, the answers to such a dumb question. Nice to know that when you
need an answer you just have to ask. Thankyou.
Mickey
Next Question, I've read that many nikon lenses produced before 1977 are
compatible with the D70 body if a $35 conversion is used to avoid damage to
the body. Also, newer lenses (less than 25yrs old) work just fine with the
D70. Is this also true for the D70s and how can you tell how old a lense
is
|
The conversion is done on Nikkor lenses pre AI mount. The pre AI moun
lenses had a small triangular piece of metal mounted on the apertur
ring which interlocked with the meter on Nikon F's . Nikon introduced th
AI lens with the F2. Early AI lenses still had the dog ear as well a
the AI ring. The AI lenses have a small ring at the rear of the bod
with a second set of f/stop numbers. The ring is notched half wa
around it's circumference. Later AI lenses dropped the dog ear.
AI lenses and AI modifieds (properly done) will mount on your D70s..
but you get no metering.. none. You need an external light meter. Thi
cripples the camera in my view.so why bother?. I have a D70s., an
N90s and an Nikon F.. and lenses bought through the years. They all wor
on the N90s. My good macro stuff is all AI and AI modified, so I kee
the N90s and the Nikon F to my macro work.
Ji
| Quote: |
Reference: Nikon D70 Digital Field Guide.
Mickey
|
--
Ji |
|
| Back to top |
|
|
|
|
|
|
Profile
Log in to check your private messages
Log in