Pentax FF Dead, Maybe

But for manual focus a good EVF can be superior for focusing, if not, I admit, as pleasant to use as an OVF (especially in low light when they can become grainy). Why?

- Focus peaking allows you to nail focus, unlike an OVF with a standard focus screen.

- Contrary to what Algi says, DOF actually reflects how it will appear in the picture, unlike an OVF with standard focus screen.

At least this is my experience using the NEX-6's EVF with K-mount lenses.

I would not want to use an EVF for the majority of my photography, however for playing around with fast MF primes, they make a lot of sense IMHO.

And I don't think it is fair to pick the X-5 as a typical example of a camera with an EVF. It is a lowly small-sensored bridge camera.

No... no it doesn't. The EVF shows the actual DOF exactly as recorded. You must be thinking of OVFs, which struggle to give a preview of DOF at fast apertures.

I've never used an EVF (Pentax don't make one and it's really off
topic on this forum) but I'd be very surprised if the electronics
could cope with say and f/1.2 lens and a whitish subject without
stopping down the lens. Hopefully Pentax will never make one
and I'll never need to know.

Edit: Possibly the Sony EVF does not close the aperture,
which must restrict the range to that of the sensor.
Don't look at the Sun.

The K-5 LV stops down in 2 stop steps... see here ....
http://ricehigh.blogspot.com/2012/01/focus-adjust-k-5-and-pentax-af-lenses.html

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LV seems to be different on the K-30 link

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point of pedantry, that is actually handled by the raw converter, some converters give you a choice of algorithms for de-mosaicing, with some being better than others for high ISO or fine detail rendering.

You are correct that some processing is necessary though, the signal from the sensor itself is analogue (a voltage) and must be converted by the A/D converter.

shouldn't really look at the sun though an OVF either, you'll burn a rather more precious sensor if you're not careful!

Just a rumor but why not stoke the fire!

http://www.dpreview.com/forums/post/52384176

Sounds like a disgruntled fanboy fantasy to me though...

so what you mean is the EVF doesn't really use a different aperture but might need to stop down to avoid blowing the highlights on the sensor.

Pentax does have an EVF. It's called Live view and as youv'e noted on Rice High's blog it does indeed stop down to avopid blowing the sensor. :

Funny how often people forget this!

Interesting. I've never noticed this behaviour, but then in LV MF mode I tend to be using M or K glass (which are always wide open until the shutter press).