AE Lock on S602 problem?

[cillin]

After the “AE-L” button is pressed, I shift the camera around; the brightness on the LCD fluctuates. Once the “AE-L” button is released, the “AE-l” icon also gone off.

If I pressed the “AE-L’ button followed by shutter button and I shift the camera around, the brightness on the LCD remain unchanged. If I need to refocus on another object, I released the button and half shutter, the new exposure setting take effect. Is this normal? Or “AE-L” is not used in this way?

Thanks

[fruitybix]

Still experimenting with the cam.

If I am not wrong, the AE Lock is used mainly for 2 functions. let's say 2 people, with a gap between them, the camera may focus on the gap instead of the people. So I will AE lock on one, HOLD the AE Lock, shift camera to the middle and release. The pictures have turn out fine..

The other function is when i take panaroma. I use AE Lock to maintain the same exposure, so that when I stitch the pictures together, the images will look evenly exposed at the edges.

However, the AE Lock can only be used in Auto mode. in M (Manual) mode, you can control the both apeture and shutter speed, so no problem there.

hope this helps.

[cillin]

Quote: ... let's say 2 people, with a gap between them, the camera may focus on the gap instead of the people. So I will AE lock on one, HOLD the AE Lock, shift camera to the middle and release ...

I have try with P, A, S mode. Assume the the people is darker than the gap at the centre that is brighter. After depressed AE lock button when focusing on the people, I shift the camera to the centre, the exposure changes; the person will look darker. The lock does not seem to work. But If I depressed the shutter after the AE lock and shift the camera to the centre, the exposure is locked.

[fruitybix]

The exposure should be unchanged i.e. it should look exactly the way it does when you first frame the people, and when you move to the center, where it is darker.

So your second way is correct.

If the people is dark, and the center is bright, maybe you can consider using flash, which will fill in the dark faces.

[cillin]

Quote: Originally posted by fruitybix The exposure should be unchanged ...

That is the confusing thing to me, it changes.

[fruitybix]

tonight will go and try...discuss some more..

By the way, was reading the manual, sounds confusing, or maybe i am not a "read manual" guy.

Have taken some shots using the AE Lock in Auto mode, with flash, under very dark conditions (almost no light). could focus a little. So i AE Lock, and use the on board flash. the faces turn out sharp.

[mpenza]

do the shutter speed or aperture settings change? what's important is the number, not whether the LCD turns brighter or dimmer.

[Zerstorer]

The AE-Lock only works in Auto/A/P/S modes and you have to hold on to the button until the shutter is released.

Though the viewfinder may adjust its brightness accordingly to the scene, I can assure you that the AE-Lock does indeed work.

[Mr Fish]

Yes i can confirm guarantee and chop it. The lcd will not represent what ur final picture will look like. The AEL works fine. Just hold on to it and dun let go till the photo's taken!

[cillin]

Thank for the replies. Sorry for the alarm.

AE-L is working, not getting used to S602 was was misled by the LCD in WYSIWYG.

Quote: ... Just hold on to it and dun let go till the photo's taken ...

Am I correct to say that if I intend to take panaroma shot, I have to use manual mode? If not either
a) I have to keep on shifting the camera to where I took the AE reading and hold the button and shift the camera to where I took previously and carried from there.
b) or keep on holding the AE-L button till all the shots are taken.

[fruitybix]

Quote: Originally posted by Zerstorer The AE-Lock only works in Auto/A/P/S modes and you have to hold on to the button until the shutter is released. Though the viewfinder may adjust its brightness accordingly to the scene, I can assure you that the AE-Lock does indeed work.

Hi cillin, tried out the AE Lock, yes you are right, the brightness of the LCD display does change when you shift it, but as what has been said, the numbers remain the same, so the exposure should be unchanged..

[wiz]

I find the AE-lock difficult to use so when shooting panaroma I tend to use AV mode to meter and use manual mode to take the shot.

[shawntim]

How is AE compared to say Spot Metering? Coz the way it's used is the same: aim, press (half shutter or AE button), shift camera..

[chenwei]

Quote: Originally posted by shawntim How is AE compared to say Spot Metering? Coz the way it's used is the same: aim, press (half shutter or AE button), shift camera..

spot metering is different from AE-L, one is the way it measure the lighting, another is exposure lock. in simply said, one is calculate and another give u result... (correct example? )

should compare spot metering with multi-metering, average metering.

[Zerstorer]

Quote: Originally posted by shawntim How is AE compared to say Spot Metering? Coz the way it's used is the same: aim, press (half shutter or AE button), shift camera..

Erm, its not the same at all.

Spot metering will only meter the centre exposure at the point of the shutter release, regardless of where you focused at initially.

AE lock works in conjunction with ANY (spot,matrix,average) metering mode to lock the exposure for the point that you originally sampled.

[shawntim]

Quote: Originally posted by Zerstorer Erm, its not the same at all. Spot metering will only meter the centre exposure at the point of the shutter release, regardless of where you focused at initially. AE lock works in conjunction with ANY (spot,matrix,average) metering mode to lock the exposure for the point that you originally sampled.

ok, maybe spot metering is not a good example, but the way that it's employed?

coz both of them are aim, (half)press, shift focus.. and using the half shutter method, you lock the exposure also if you don't release the button.

[chenwei]

Quote: Originally posted by shawntim ok, maybe spot metering is not a good example, but the way that it's employed? coz both of them are aim, (half)press, shift focus.. and using the half shutter method, you lock the exposure also if you don't release the button.

i guess u r comparing shuttle n AE-lock??? if u half press shuttle, not only the exposure is locked, the focus is locked also. however if u use AE-Lock, only exposure is locked, u still can composite the pic by half-press shuttle.

[Zerstorer]

Quote: Originally posted by shawntim ok, maybe spot metering is not a good example, but the way that it's employed? coz both of them are aim, (half)press, shift focus.. and using the half shutter method, you lock the exposure also if you don't release the button.

If I didn't recall wrongly, you don't even have to press half shutter to use AE lock. In A/P/S modes, the exposure values are constantly changing whenever you shift the composition. What you do here is to press aim at the spot you want to meter, hold on to AE-Lock and then recompose and take the shot.

You don't have to hold on to half shutter unless you want the focus to be fixed at the same point where you sampled the exposure.

Normally, when you half-shutter on an object and then recompose, only the focus will be locked. The exposure will be metered at the point when you take the shot, not the spot which you focused upon.

[mpenza]

hmm... if you just half press on shutter without AE-L, both exposure and focus is locked.

AE-L comes in handy when you want the exposure to be metered at a place different from the focus point. You press on AE-L to lock exposure, than recompose as required and half-shutter to focus.

[shawntim]

Quote: Originally posted by Zerstorer If I didn't recall wrongly, you don't even have to press half shutter to use AE lock. In A/P/S modes, the exposure values are constantly changing whenever you shift the composition. What you do here is to press aim at the spot you want to meter, hold on to AE-Lock and then recompose and take the shot.

but coz the exposure (as viewed on LCD screen) is constantly changing, i don't feel as if the exposure was being locked either using AE-L or half shutter. Or is it not supposed to be view this way?

Quote: hmm... if you just half press on shutter without AE-L, both exposure and focus is locked. AE-L comes in handy when you want the exposure to be metered at a place different from the focus point. You press on AE-L to lock exposure, than recompose as required and half-shutter to focus.

thanks mpenza