hi all.. i always heard ppl said why DSLR cant see from LCD screen la..

why must see tru viewfinder la..

and why Olympus one can see tru LCD la..

so actually is why? how u guys answer this?

* sometime i just say tru viewfinder is more accurate n faster.. but i dont hv some theory to support

Because the viewfinder is what is 'actually' being reflected by the lens. Those digital camera tat have the LCD preview, the image already has been captured and displayed digitally....

dslrs have mirrors in front of the ccd unlike compact cams. it enables u to see what the lens sees,hence better composition. the mirrors prevent dslrs from having lcd preview but recent technoloy advances mainly in oly's e330 , panasonic's l1 and canon's just announced 1d does provide live view. on a personal note, i don think its tht necessary.

but the live view is accurate as the view from viewfinder?

so it's called Tru The Lens by looking tru viewfinder is it?

because..
dslr=digital single-lens reflex camera

canon eos20da have this function. specifically for astrophotography.

or even the new canon 1d markIII for a measly RM16k

swt lo.. no one answer my question.. just said

"canon eos20da have this function. specifically for astrophotography."

"or even the new canon 1d markIII for a measly RM16k"

while i asking....

live view is accurate as the view from viewfinder?

and Why DLSR cant see from LCD?

1. LCD have a limited pixel resolution, limited colours (mostly 6bit), limited respond.. while viewfinder is live view, limited by your eyes. Especially important if you are manually focusing, depth of field and such

2. The ccd or cmos sensor is behind the shutter.. in a way to protect the sensor and only is needed to capture the image and not used for composure of the picture about to be taken. So unless the shutter is able to flip up for live preview ..or the prism/mirror redirect image to a secondary sensor,.. u will not have preview on the lcd. Besides the image is already directed to sensors for auto-focusing points, light and whatnot..

Really shutter... not the consumer camera artifical shutter sound produced by built-in speakers

This post has been edited by BeastX: Feb 24 2007, 11:28 AM

Its a love it or Hate it affair i would say.
With LiveView and Swivel screens like Olympuses SLR, you can take shooting-from-the-ground shots without dirtying your body.. Its also useful to explore your creativity from diffrent angles...minus the hassle

But for me, I still like the view reflected from a DSLR..nth beats that really...
Just that LiveView screens is an added bonus

baru la professional gune viewfinder..

Coz that'd make people using DSLR looks like n00b

agree...lcd feels like beginners

My 2 sen on mememe12's questions:

1) Viewing through the viewfinder of a dslr is more accurate, as the image is reflected by the mirror in the mirror box into a pentaprism, then into your eyes. In other words, these are actual images. Any change in focus or focal length (zoom) is instanteneous and there is no lagging. This is very important, especially at crunch times (oh... the butterfly is flying away....). Another important factor is the limit on the resolution of an LCD. Would you prefer to look where you are going with a pair of LCD in front of your eyes, connected to cameras? Or would you rather see where you are going with your bare eyes? I think that explains it better.

2) In order for the image to be displayed on the LCD, the sensor has to "see" the image first. In a traditional dslr, this is not possible as the sensor is blocked by the mirror (which only swings out of the way when the shutter is pressed). Using the pair of LCD in front of your eyes example again: you can't expect to see the beautiful girl if it was blocked by a piece of plywood right? However, recent development, notably the olympus system, had found a way to deflect part of the light from the image into a secondary sensor. This sensor then transmit the image to the LCD.

Hope that answers mememe12's question.

Sham.

I am a E-330 owner, and I would rather have the mirror lock up or down depending on whether I feel like shooting through the viewfinder or LCD for composition.

Right now, the E-330 is designed to always split 20% of the light to the secondary sensor for Live View mode A. The viewfinder gets dark because of this. Plus it's already smaller than other DSLR's viewfinders already... Makes it a bit difficult to manually focus lenses.

Live view mode B gives Live View with from the main image sensor but I think it's some sort of circuitry limitation why it can't always be in Live View mode B. Probably prone to overheating, unlike the smaller (and less power-consuming) sensors of P&S cameras, I guess. Otherwise, it could always be left on and exposed to light and shuttering is done electronically.

Technically, all P&S with electronic view finders (the LCD) are SLRs... there is only one lens path the light goes through and no parallax error from viewing from a separate viewfinder. LCD composition, if aided by real-time magnification, can achieve much more accurate manual focusing than by eye alone through the viewfinder. The E-330's 10x EVF magnification is very useful for still life and macros.

cjtune: hehehe.... call me old fashioned but I don't believe P&S can be classified as SLR or DSLR because even though it also uses a single lens, there is no reflex mirror involved. But you do have a point that you are essentially looking at what is passing through the lens, rather than a separate viewfinder where you often can get parallax error.

but.... calling a P&S a dslr is like degrading a dslr lah... i dun wan...

sham.

True, true. OK, I'll say "it's in the same spirit as Single Lens Reflex".
But I'm not so sure if a mirror absolutely has to be associated with the term "SLR". Of course, back then you can't have live preview on film...

for me its makes the pro and noob diferences..
agree..the viewfinder is more accurate then the lcd..

Please explain why you think so.

Pros will be pros irregardless of their equipment.

LCD viewfinders can be more accurate than optical viewfinders in certain circumstances like macro photography where the depth-of-field is so thin and the LCD's digital zoom can aid your focusing.

wow.. a lot good points there... thanks all for the explanation...

u may cont' to contribute comments n ideas if u guys are willing..

thanks