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Sorry, please don't hate me. Can you explain what these mean? Well like how I can use them on the phone. I tried to read up about them but well...
anyway I really appreciate the help, thanks
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Posted: 2008-09-24 17:55:33
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adsada
no, I will not hate you we are here to discuss and help each other give me some minutes for answer
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Posted: 2008-09-24 18:01:45
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yes & yes
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Posted: 2008-09-24 18:04:39
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yes (CORRECT) & yes (WRONG)

the real problem are photons on sensor which is not able to catch them all. your answer is really weird, what do you want to do with light metering algorithm if your problem is called photon? fixed (whatever this mean) light metering will not change your poor sensor to HDR sensor. if I'm wrong then why overexposure and underexposure is still big problem even in professional cameras?

can you pour 1,5L of water into the 1L bottle?

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Posted: 2008-09-24 18:22:55
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adsada
ok, it's hard to explain everything especially if I don't want to complicate this. I hope this helps, you can also use Google to search interesting sites (a lot) about this, for example:

http://www.megapixel.net/html/articles/article-contexpo.php


1. Exposure Value (EV) compensation

autoexposure


EV -2.0
use negative EV if you want to reduce overexposure (too bright)


EV +2.0
use positive EV if you want to reduce underexposure (too dark)


of course you have to know that this isn't magic solution which will make wonders. it can help only if overexposure/underexposure problem is not too big


2. AutoExposure (AE) lock
use half pressed shutter key (this one which you're using to focus and taking pictures) to lock AE. it will be locked just before autofocusing process. with locked AE you can point your camera everywhere and exposure will be 'freezed'. release shutter key and you will unlock AE

AE locked (overexposure)
exposure locked at dark object and then camera pointed at bright object (screen)


AE locked (underexposure)
exposure locked at bright object (screen) and then camera pointed at dark object


how to use it? move your camera to find good exposure for your scene (e.g. well balanced sky and ground brightness for landscape). lock AE and now you can move your camera more to sky or to ground without any problems with brightness


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Posted: 2008-09-24 20:00:23
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Thanks for taking the time to explain this to me. So yeah I understand EV compensation, it's just on the second one. Now when it is locked is this when the four corners go green? Also what is that happening when the picture is focusing and it sort of partly zooms in then out at the same time, going dark (or sometimes light) and then going back to normal once set. Is that anything to do with it? Thanks
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Posted: 2008-09-24 20:13:29
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AE is locked not before as I wrote earlier but after focus, when box is green. changes during focusing like small zoom in/out is because of lens is moving, it's normal. I can't answer on rest of your question because I don't have described by you effect on my K800. one more thing, pay attention on AE lock used with focus infinity - is it working in K850? I'm asking because it's not working in K800 (this bug was never fixed)

_________________
K800 R1KG001
raider.4shared.com
flickr.com/photos/raiderek

[ This Message was edited by: Raiderski on 2008-09-25 09:31 ]
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Posted: 2008-09-25 10:31:02
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Okay I understand 100% now thanks. Do you mean the infinite mode? Because auto-focus is completely removed? Due to that being for like landscape and stuff... or did I misunderstand?
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Posted: 2008-09-25 17:31:20
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