I use mostly A, S, and M. Let say, u play S mode, if the bar more to the right(underexpose), then slow down ur shutter speed until it goes to the middle. If ur bar more to the left(over expose), then make ur shutter speed higher until it goes to the middle. All using the dial.

Same for A,S and M(play both to get the bar right!!).

I always set my EV to -0.3 and -0.7(most of the time).Then play the bar. First few days got D40, always set at 0EV and get overexposes. Then read few forums says that D40 need to be set at -0.3 to -0.7.

Hope it helps

Why increasing EV can affect shutter speed one? 1/20 somemore. Means if you already at 1/20 and increase EV +1 mah become 1sec shutter speed?

why compare pro bodies with normal bodies? Yours can still change EV even when you set your aperture and shutter speed.

D80, 350D and in this case i think the D40 are affected when you change your EV to +, your shutter will drop. EV-, your shutter will increase.

jeffbong / shinchan...
i will take a look at the EV settings...
thanks for the tips....

I heard even the EOS 5D also cannot do this ... why can't they put it in semi-pro or entry level DSLRs? It makes exposure control easier and I dun find this feature very 'professional' also? What about Nikon pro models? Can they +/- EV without affecting currect Shutter/Aperture value?

this we need andre to confirm whether d200 can do it or not. lol

no u cant adjust the EV without need to adjust the aperture or shutter speed on a d200. heard from a d200 owner

i wanted to include the owner you mentioned into my post just now but then... lol
looks like only canon pro bodies can do it... anyone with Nikon D1, d2 series?

on the D200, setting the EV just changes the Shutter speed.... (i think)

don't really play with it so much since the exposure is right most the time...

1D will not change the shutter speed when you change the EV... based on what i saw from ac's 1D

does d40 change shutter or aperture if we modify EV?
i didnt realise this...

you are in quite a good situation to answer your own question... haha

try it out and see if it adjusts your shutter speed or ISO (if autoISO is on) or Aperture (if you are not in aperture/manual mode)

gahh...

guys,
EV means Exposure Value.

facts:
- CCD/CMOS receives light from the subject to produce the photo.
- no enough light receives will leads to underexpose photo,
- too much light receives will leads to overexpose photo.

as i mentioned previously to xandman,
shutter speed, aperture, ISO, flash affects the exposure of the photo.
(the four factors which u can control on the camera. other factors would include external factors such as reflector, the sun, the moon, softbox, and other external source of light)

thus, changing your EV value WILL surely change:
- shutter speed when u're using A (aperture) priority.
- aperture size when u're using S (shutter) priority
- ISO range when u set your ISO mode at Auto.
- flash when u change the flash EV manually (if u notice, ur camera would have two EV value. one for the camera sensor, CCD/CMOS, another one for the built-in/attached flash).
* the only time ur shutter speed and aperture size does not change as of when u change the EV value is when u use the M (Manual) mode.
** ISO value will not change when u selected the required value at your camera menu settings, i.e. set to ISO200 and it will stay that way permanently till u change it again.

if just changing the EV wont affect the shutter speed / aperture / ISO, why we still need VR???

do i need to explain why u guys need VR? or IS? or AS? or any other brand camera technology that help reduce handshake...

This post has been edited by karwaidotnet: May 11 2007, 10:12 PM

wlcling...
i guess u r right...
i can check it out myself...
hehehhee...sorry..for asking kinda stupid ques...

EV will change your shutter/aperture in A,S,P and other modes. but it wont change in M. that i'm pretty sure for my d70s. AC, your 1D can change EV without affecting aperture/shutter in A or S?

I'm no camera Guru but, here's what i think which i hope makes it simplistic (to me at least)

like karwaidotnet elaborated earlier, you can say Exposure is manipulated by the combination of either aperture/shutter/iso (and i guess available light source as the main item that finally ties in to the combination of the 3 above).

The EV button/function is something like reverse engineering (maybe its not the best term to describe it ). So when you tweak the EV +/- settings, it automatically changes anyone of the 3 items above depending on which mode you're on (xcept Manual Mode) to get the Exposure you want.

My explanation should have holes anyway, since Ac98 mentions it doesn't change these settings mentioned

This post has been edited by wlcling: May 11 2007, 11:02 PM

kinda defeat the purpose of +-EV adjustment in the cam if it adjust the other values when we can adjust the other values ourselves

unless its meant for manual mode users

say i wanna +1.0 EV. what is there to add or minus to get 1.0EV?

EV is just a metering. what is there to add/tweak to make it +1.0EV? beside aperture, shutter speed and iso?

I dun remember the last time I use Av or Tv, haha! But at Av or Tv the values will change as you go up or down the Ev bar, they should change to correspond with the final exposure setting.