Features like this are what convince me that I don't need autofocus as well. When I can focus so quickly and so easily, even in dim light, why bother with all the complications and drawbacks of AF?
On Wed, Sep 7, 2011 at 2:20 AM, Steven Desjardins <[email protected]> wrote: > It would be a feature that would interest me in a future mirrorless > body. I have tried on on a Sony and it's pretty nice. I suspect that > one you really began to use it with MF lenses it would be hard to go > back. > > On Tue, Sep 6, 2011 at 8:47 PM, Godfrey DiGiorgi <[email protected]> wrote: >> On Tue, Sep 6, 2011 at 3:06 PM, Brian Walters <[email protected]> wrote: >>>> "Peaking mode" highlights the part fo the image in focus. It's a >>>> nifty way to do manual focus. The Sony NEXs are best known for it. >>>> >>>> http://www.youtube.com/watch?v=sJxUiLqPUgQ >>>> >>> OK. Thanks for the clarification, but is this any different from (or >>> better than) the focus confirmation indicator that we get with DSLRs >>> when used with manual lenses? >> >> "Focus peaking" highlights the edges of the scene in the local areas >> where contrast is at its peak. Unlike with a focus confirmation light >> on a DSLR, with a fixed position array of AF focus sensors, focus >> peaking operates on the actual image being captured by the sensor. >> When you turn it on, you can literally see the focus plane shift based >> on where the peak contrasts are located in the image. >> >> The GXR with firmware 1.40 (not limited to just the A12 Camera Mount) >> supports two modes: mode 1 retains the natural full color image in the >> viewfinder, illuminating edges with highlights as focus is moved. Mode >> 2 does the edge illumination but also does a high pass filter on the >> image, which essentially means you see ONLY the contrasty edges. >> Coupled with the focus magnification function (which allows you to see >> high resolution 2x, 4x and 8x magnifications of the field of view), >> you can pinpoint critical focus to an arbitrary level of precision >> with all kinds of scenes and lenses, even with lenses stopped down to >> f/11 or f/16 and deep depth of field. >> >> These are focusing tools impossible in an optical reflex finder. They >> require fast, high-resolution image processing of the incoming image >> stream. Focus aids like this have been a high-end feature on >> professional video cameras for a bit ... Seeing it come into the still >> camera world is great. >> >> I experimented with the GXR + A12 Camera Mount, experiencing this >> feature with manual focus lenses, a week ago. It is thrilling to see >> how easy and precise TTL manual focus can become when using it. >> -- >> Godfrey >> godfreydigiorgi.posterous.com >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. >> > > > > -- > Steve Desjardins > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- Godfrey godfreydigiorgi.posterous.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
