[Tanzer]

Has this been reported elsewhere?

Yes, it is linked in Steve' second post on this thread, but let me copy that link and paste it here:
https://www.pentaxforums.com/forums/172-pentax-k-3/250619-focus-peaking-during-video.html

[richandfleur]

Yes, it is linked in Steve' second post on this thread, but let me copy that link and paste it here:
https://www.pentaxforums.com/forums/172-pentax-k-3/250619-focus-peaking-during-video.html

Thanks.
Most likely scenario is definitely buggy software then, allowing focus peaked footage to be written to the memory card.


It's an area that Pentax could develop a bit more, as many users use manual focus during video, (limited video autofocus options anyway on Pentax cameras), where digital zoom and focus peaking would be really useful.
Sony for instance allows 3 levels of peaking, and 3 options for colours, as well as digital zoom during video recording ~ none of which are recorded to the memory card file.

[kadajawi]

Thanks.
Most likely scenario is definitely buggy software then, allowing focus peaked footage to be written to the memory card.


It's an area that Pentax could develop a bit more, as many users use manual focus during video, (limited video autofocus options anyway on Pentax cameras), where digital zoom and focus peaking would be really useful.
Sony for instance allows 3 levels of peaking, and 3 options for colours, as well as digital zoom during video recording ~ none of which are recorded to the memory card file.

It is, however Sony has horsepower that Pentax lacks. I do think Pentax will offer it once it is possible. Hopefully they will stop using their dated processors. And hopefully they will switch to something with more power, if Fujitsu doesn't provide it.

[Not a Number]

Looks like over aggressive edge enhancement to me. Commonly used in video. But I suppose that's how focus peaking outlining works to begin with.

Ultimate Guide to 'Edge Enhancement'

Scroll down halfway for some examples of bad edge enhancement.

[PiDicus Rex]

Focus Peaking Bug?

Links?

Or do you just mean how it turns off when one presses record?

[kadajawi]

Focus Peaking Bug?

Links?

Or do you just mean how it turns off when one presses record?

No. Apparently once in a while the focus peaking does not turn off when starting to record... Giving you those bad artefacts.

[stevebrot]

Focus Peaking Bug?

Links?

https://www.pentaxforums.com/forums/172-pentax-k-3/250619-focus-peaking-during-video.html


Steve

[PiDicus Rex]

Ahh. Yes, that does explain things.

[osv]

https://www.pentaxforums.com/forums/172-pentax-k-3/250619-focus-peaking-during-video.html

what, the peaking color is white? all i see there is horrible compression artifacting.

steve, the mov file that you posted 5 days ago:

Bit rate : 18.7 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 fps

is 19Mbps the highest video bitrate that the camera is capable of?

[stevebrot]

what, the peaking color is white?

Ummmm...yes...the focus peaking color on Pentax dSLRs is white.

s 19Mbps the highest video bitrate that the camera is capable of?

I will ask the camera and get back to you...*


Steve

* Given that the bitrate for HD Blueray is about 20 Mbps, I did not think the number particularly low. I am not particularly knowing about such things except that it is not settable on-camera.

[osv]

i remember looking at a k-3 sample video in detail a couple of years ago: https://www.pentaxforums.com/forums/172-pentax-k-3/238987-pentax-k-3-video-di...ml#post2579468

note that was shot at 29.97fps, vs. the 23.976fps that your clip was shot at.

that clip looks like nearly similar bitrate to what you posted, and i see where you say that there aren't any bitrate choices in the camera menu.

there must be a menu choice for those two different frame rates, tho, right?

i would try shooting the same comparison scenes at both frame rates, and see if there is a difference.

[richandfleur]

These controls live under a video menu called Movie Capture Settings.


There are then options for Recorded Pixels (Resolution), Framerate and Quality Level.


The bitrate is controlled by the quality level setting, which is expressed in the common units of stars...

[osv]

stars? that's good to know.

is there any way to change the peaking color to something other than white? remove white from the equation? so you can tell for sure if peaking is somehow getting recorded along with video.

then start comparing stars and framerates

---------- Post added 07-26-15 at 03:04 PM ----------

* Given that the bitrate for HD Blueray is about 20 Mbps, I did not think the number particularly low.

yes, 19mbps should give decent pq, if those pentax mov files were right out of the camera, not re-encoded, something must be wrong.

[richandfleur]

stars? that's good to know.

is there any way to change the peaking color to something other than white? remove white from the equation?

Buy a Sony where you can pick from3 different colours and 3 different peaking sensitivities.


On a Pentax? no, you get what you're given. In this case, white.

[stevebrot]

yes, 19mbps should give decent pq, if those pentax mov files were right out of the camera, not re-encoded, something must be wrong.

Straight from the camera, no PP or editing. Highest quality (minimal compression) and 24 fps at 1080p.

Unfortunately, this problem has only happened to me twice and then both times within a 10 minute span. I have not been able to reproduce it despite attempting under similar conditions with the same lens.


Steve