Originally posted by Tranzistors Maybe my sarcasm detector is broken, but isn't EVF in K-5 already?
I mean a true EVF. That, to me, is something different than a LCD on the back of the camera (which is next to useless in bright light). To me, it means an electronic replacement of the current ground glass screen + viewfinder, with the same way of looking into the camera.
Originally posted by Pål Jensen DSLR's already have EVF's. The concept is to remove an optical finder which is a feature. The main function of a finder is looking, and looking is best done optically; thats why we have glasses, windows, binoculars instead of LCD screens. Seeing the real thing is the perfect solution for seeing the real thing; no need to reinvent the wheel. EVF have their uses - thats why they are included on DSLR's. A camera without optical finder is a camera without an important feature.
Your reasoning is flawed. Of course glasses, windows and binoculars are pretty good as they are in their current optical form. Because the end image is formed in our eyes, and not meant to be recorded. In the case of our cameras, however, the end result is a digital picture. And that's why I don't want to see the real thing. An OVF is next to useless, because what you see is *definitely* not what you'll get. No matter which SLR I use the end result is always somewhat unpredictable because of the extreme discrepancy between the picture on the ground glass screen (which has a deeper DOF) and the recorded picture.
I fail to see why a photographer would not want to see the picture, in real time, as it would be recorded by the camera, including the DOF. It makes shooting so much easier and the cameras so much more reliable and cheaper. Cheaper yes, because a lens would only need a manual diaphragm (it is closed at working f/stop all the time, which also means that focus shift because of stopping down is a thing of the past).
Originally posted by Clavius If your K5 has focussing errors, shouldn't you return it and have it fixed?
I'm kidding of course, but truth is, these camera's focus correctly as it is. Whenever I run into incorrectly focussed images then I myself am the one to blame.
I use manual focus lenses and I don't fiddle around with any screens, glass or shims. Maybe you should quit that and your camera wil focus and meter better?
Actually, and that's no joke, I manual focus a lot of the time (I'd say more than 50% of the time) and I'm pretty good at it. However, even then my hit ratio is less than 50% because the K-5's viewfinder, while very good in its class, is a bloody shame when compared to the old MX or LX. Every time I put my MX to my eye I get tears because I still don't understand why the optical viewfinders were so good back then, and so bad right now...
Originally posted by thibs IMO you make a big mistake by stating EVF means contrast detect.
First, it is already in K7/K5 etc.
Second, EVF doesn't mean CD-AF, Sony SLT is a good example.
Best option is an EOS RT-like solution with hybrid VF. Everybody happy. That's it.
Contrast detect AF will eventually be faster than phase detect AF. And, there's no denying that doing metering and AF-ing on the sensor is the best solution to all problems that exist right now. For instance, in the case of my K-5 there are a lot of variables when it comes to autofocusing accuracy:
- the bayonet-sensor distance
- the bayonet-ground glass screen distance
- the bayonet-AF sensor array distance
- focus shift because of stopping down the diaphragm during the shot
- focus shift because of the color temperature of the light
If one of those variables is off then be prepared for lots of focusing headaches... With contrast detection on the sensor, none of these problems do exist.
Again: the OVF was good in its time, but today there are better ways to frame your pictures and focus.