exposure values

[broussel]

Hi guys,

I have a question, when bracketing an exposure say 3 frames, one being zero
one -1 and the third +1 does the shutter speed change at all or just the f
stops??

I'm new to this hobby so forgive my lack of knowledge.

Bob

[Larry CdeBaca]

Exposure = Speed + Aperture

If I understand rightly, aperture (f-stop) and shutter speed are on a
see-saw -- decrease one, the other must increase, and vice versa. If the
f-stop changes, the shutter must change to compensate.

"broussel" <broussel@cfl.rr.com> wrote in message
news:you4b.6197$zK3.314406@twister.tampabay.rr.com ...

> Hi guys,
>
> I have a question, when bracketing an exposure say 3 frames, one being

zero

> one -1 and the third +1 does the shutter speed change at all or just the f
> stops??
>
> I'm new to this hobby so forgive my lack of knowledge.
>
> Bob
>
>

[Ric Trexell]

"broussel" <broussel@cfl.rr.com> wrote in message
news:you4b.6197$zK3.314406@twister.tampabay.rr.com ...

> Hi guys,
>
> I have a question, when bracketing an exposure say 3 frames, one being

zero

> one -1 and the third +1 does the shutter speed change at all or just the f
> stops??
>
> I'm new to this hobby so forgive my lack of knowledge.
>
> Bob

**************************************************
Bob: It would be only the f stops usually but I suppose on different
cameras that have aperature priority it might be the shutter. It could also
be both of them on some automatic cameras I suppose. Ric in Wisconsin.

>
>

[Just Me]

You would be better off reading the post. Your answer makes no sense with regard
to the question, now does it?

"Larry CdeBaca" <lcdebaca@comcast.net> wrote in message
news:C--dnRAgh5c1EM-iU-KYuA@comcast.com...

> Exposure = Speed + Aperture
>
> If I understand rightly, aperture (f-stop) and shutter speed are on a
> see-saw -- decrease one, the other must increase, and vice versa. If the
> f-stop changes, the shutter must change to compensate.
>

> "broussel" <broussel@cfl.rr.com> wrote in message
> news:you4b.6197$zK3.314406@twister.tampabay.rr.com ...

> > Hi guys,
> >
> > I have a question, when bracketing an exposure say 3 frames, one being

> zero

> > one -1 and the third +1 does the shutter speed change at all or just the f
> > stops??
> >
> > I'm new to this hobby so forgive my lack of knowledge.
> >
> > Bob
> >
> >

>
>

[Dan Uneken]

Bracketing is exposing multiple frames, 3 for instance, where the
first is exposed normally, the second is under exposed and the third
over exposed (the order may vary). It depends on the setting on your
camera: if you use Shutter priority, the aperture will vary, if you
use Aperture priority, the shutterspeed will vary.
On full Automatic, the camera's programmed algorithm will decide which
one to vary.

Don't know if this works if the camera is in full manual mode. Anyone?
Of course one can bracket manually! As many frames as you like.

For slides full stop bracketing is a bit much, better use half stops,
if that's available.

Cheers,

Dan.

[Larry CdeBaca]

If you're addressing me, Just, I tried to answer broussel's question, "does
the shutter speed change at all or just the f-stops??" You can't adjust
aperture without the speed changing to allow the same amount of light to hit
the film. Is that better?




"Just Me" <spammelater@spam.com> wrote in message
news:cuA4b.121647$0v4.8768721@bgtnsc04-news.ops.worldnet.att.net...

> You would be better off reading the post. Your answer makes no sense with

regard

> to the question, now does it?
>
> "Larry CdeBaca" <lcdebaca@comcast.net> wrote in message
> news:C--dnRAgh5c1EM-iU-KYuA@comcast.com...

> > Exposure = Speed + Aperture
> >
> > If I understand rightly, aperture (f-stop) and shutter speed are on a
> > see-saw -- decrease one, the other must increase, and vice versa. If the
> > f-stop changes, the shutter must change to compensate.
> >

>
>

> > "broussel" <broussel@cfl.rr.com> wrote in message
> > news:you4b.6197$zK3.314406@twister.tampabay.rr.com ...

> > > Hi guys,
> > >
> > > I have a question, when bracketing an exposure say 3 frames, one being

> > zero

> > > one -1 and the third +1 does the shutter speed change at all or just

the f

> > > stops??
> > >
> > > I'm new to this hobby so forgive my lack of knowledge.
> > >
> > > Bob
> > >
> > >

> >
> >

>
>

[Gareth Kitchener]

Larry CdeBaca said:

>If you're addressing me, Just, I tried to answer broussel's question, "does
>the shutter speed change at all or just the f-stops??" You can't adjust
>aperture without the speed changing to allow the same amount of light to hit
>the film. Is that better?
>

Not really.... the original question was about bracketing - can you do
this by altering shutter speed or only by altering the aperture?
The simple answer is that you can do it by either.

What you said is quite right... but doesn't answer the question.



--
Gareth Kitchener
Bedfordshire, England
[url]http://www.garethkitchener.org.uk[/url]

[Norman Worth]

It depends on the camera and the exposure mode. Nikon varies the shutter
speed in manual (M), shutter priority (S) and Aperture priority (A) modes
and both shutter and aperture in programmed mode (P).

broussel wrote:

> Hi guys,
>
> I have a question, when bracketing an exposure say 3 frames, one being
> zero one -1 and the third +1 does the shutter speed change at all or just
> the f stops??
>
> I'm new to this hobby so forgive my lack of knowledge.
>
> Bob

[Slingblade]

On Sun, 31 Aug 2003 22:11:42 GMT, "broussel" <broussel@cfl.rr.com>
wrote:

>Hi guys,
>I have a question, when bracketing an exposure say 3 frames, one being zero
>one -1 and the third +1 does the shutter speed change at all or just the f
>stops??
>I'm new to this hobby so forgive my lack of knowledge.
>Bob

Well, that depends on you, or in some cases your camera.

If you are shooting fully manual, then you can bracket your shots with
either aperture or shutter speed.

Quick example...

Say your light meter says to shoot f/8 at 125th sec.

Aperture bracketing:

Bracketing up 1 full stop would be
f/5.6 at 125th
Bracketing down 1 full stop would be
f/11 at 125th

Shutter speed bracketing:

Up
f/8 at 60th
Down
f/8 at 250th

So it doesn't matter which one you change, either shutter speed or
aperture, the real question is...what effect are you trying to
achieve.

If you need to maintain a particular depth of field for whatever
reason, then you'd want to bracket by changing shutter speed, but if
stopping action is more important, then perhaps changing aperture is
better.

As a rule, I've found changing aperture is usually "easier" on most
older cameras with aperture rings on the lens barrel, but it may not
always be desirable, as mentioned above.

[Slingblade]

On Mon, 1 Sep 2003 16:26:59 -0600, "Larry CdeBaca"
<lcdebaca@comcast.net> wrote:

>If you're addressing me, Just, I tried to answer broussel's question, "does
>the shutter speed change at all or just the f-stops??" You can't adjust
>aperture without the speed changing to allow the same amount of light to hit
>the film. Is that better?

I think he was addressing you, but I have to agree with him. You
didn't answer his question.

And to enlighten you...yes, you CAN adjust aperture without the speed
changing, because that is what bracketing is. If you were trying
shoot the same shot three times at the same exposure, that would not
be bracketing. Bracketing is when you have what your camera or
handheld meter says is correct, plus one or more exposures that vary
up and/or down one or more stops, or in some cases partial stops, if
your camera/lens is capable of in-between f-stops or shutter speeds.

[Slingblade]

On 31 Aug 2003 23:34:28 -0700, [email]fotofilm@worldonline.es[/email] (Dan Uneken)
wrote:

>Don't know if this works if the camera is in full manual mode. Anyone?
>Of course one can bracket manually! As many frames as you like.

I may be wrong, but I don't think that any cameras that have the
exposure compansation dials work when shooting fully manual, but
perhaps on some of these newer ones...it might be possible, but that'd
kinda defeat the whole idea of manual.

[Thijs Verbeek]

When I set my camera to Aperture, he will choose the right shutter-speed.

If I then set the camera to autobracketing (+/- 1/3 stop) he will change the
shutterspeed to
under or overexpose the image.

In autobracketing, the camera wil shoot 3 photo's, the first with the
neutral setting, then one
underexposed, and one overexposed (at least mine does).

For example; f=5,6 , then the first picture wil be shot with 1/400 then
1/500 and the last is
shot with 1/320

Now I set the camera to Shutter priority and choose s=1/400 he will change
the aperture setting

The first shot is at f=7,1 then 8,0 and 6,3

I tried this with my E10 and it works just fine, I know the 5,6-1/400 is not
the same as the 1/400-7,1
but that is because while changing my camera from aperture to shutter
priority the lighting conditions
changed a bit too.

The only thing I do not like about the feature of this camera is that you
can not choose to have
all images overexposed or underexposed, so it is always one correct a, one
under and overexposed.

When bracketing manually, you can do as you like...

Thijs

Slingblade <bladeREMOVEslinger@earthREMOVElink.net> schreef in berichtnieuws
[email]6tq8lvkj04j1m6lthrv32eh5stpbhrhi82@4ax.com[/email]...

> On 31 Aug 2003 23:34:28 -0700, [email]fotofilm@worldonline.es[/email] (Dan Uneken)
> wrote:
>

> >Don't know if this works if the camera is in full manual mode. Anyone?
> >Of course one can bracket manually! As many frames as you like.

>
> I may be wrong, but I don't think that any cameras that have the
> exposure compansation dials work when shooting fully manual, but
> perhaps on some of these newer ones...it might be possible, but that'd
> kinda defeat the whole idea of manual.

[Dan R]

would it be too much to ask, "WHAT CAMERA"? <| 8-)

Dan R.

"Thijs Verbeek" <thijs.verbeek@tiscali.nl> wrote in message
news:bj2nv2$osq$1@reader1.tiscali.nl...

> When I set my camera to Aperture, he will choose the right shutter-speed.
>
> If I then set the camera to autobracketing (+/- 1/3 stop) he will change

the

> shutterspeed to
> under or overexpose the image.
>
> In autobracketing, the camera wil shoot 3 photo's, the first with the
> neutral setting, then one
> underexposed, and one overexposed (at least mine does).
>

[Robin Verbeek]

Olympus E10,

I mentioned just the E10...


Dan R <doktterSPAMLESS@hotmail.com> schreef in berichtnieuws
[email]vladrt1racsdaf@corp.supernews.com[/email]...

> would it be too much to ask, "WHAT CAMERA"? <| 8-)
>
> Dan R.
>
> "Thijs Verbeek" <thijs.verbeek@tiscali.nl> wrote in message
> news:bj2nv2$osq$1@reader1.tiscali.nl...

> > When I set my camera to Aperture, he will choose the right

shutter-speed.

> >
> > If I then set the camera to autobracketing (+/- 1/3 stop) he will change

> the

> > shutterspeed to
> > under or overexpose the image.
> >
> > In autobracketing, the camera wil shoot 3 photo's, the first with the
> > neutral setting, then one
> > underexposed, and one overexposed (at least mine does).
> >

>
>

[tjs]

It is one of the other that changes. Usually, the f stop. If you change
both, you might end up not changing the exposre at all, or changing it too
much, but 2 stops.

hope this helps.

toneh

"broussel" <broussel@cfl.rr.com> wrote in message
news:you4b.6197$zK3.314406@twister.tampabay.rr.com ...

> Hi guys,
>
> I have a question, when bracketing an exposure say 3 frames, one being

zero

> one -1 and the third +1 does the shutter speed change at all or just the f
> stops??
>
> I'm new to this hobby so forgive my lack of knowledge.
>
> Bob
>
>

[rob kd]

Bob,

It depends on what is critical for you: the fstop or the shutter speed. If
the fstop and therefore the depth of field is important, use the shutter
speeds to bracket. Don't, however, go slower than 1/60 if you are using a
normal lens. If you are giving priority to having a certain shutter speed,
then change the fstop to bracket. You can also mix and match, but that's
harder to keep track of.

Robert
"broussel" <broussel@cfl.rr.com> wrote in message
news:you4b.6197$zK3.314406@twister.tampabay.rr.com ...

> Hi guys,
>
> I have a question, when bracketing an exposure say 3 frames, one being

zero

> one -1 and the third +1 does the shutter speed change at all or just the f
> stops??
>
> I'm new to this hobby so forgive my lack of knowledge.
>
> Bob
>
>