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12-02-2012, 03:02 PM   #1
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LCD "interference" when focusing

When I push the shutter half-way down to focus, in the process the LCD produces horizontal-ish lines (they are not all strictly horizontal) that look like electrical interference or moire. It seems to occur along the edges of objects, and even over something like a cell phone case that is uneven or mottled leather in texture. I have two micro 4/3 cameras and their LCDs do not do that at all. Is this normal for the K-01?

12-02-2012, 03:08 PM   #2
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That is focus peaking, it is a feature, showing you the edges of what is in focus.
12-02-2012, 03:10 PM   #3
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QuoteOriginally posted by kpevav Quote
When I push the shutter half-way down to focus, in the process the LCD produces horizontal-ish lines (they are not all strictly horizontal) that look like electrical interference or moire. It seems to occur along the edges of objects, and even over something like a cell phone case that is uneven or mottled leather in texture. I have two micro 4/3 cameras and their LCDs do not do that at all. Is this normal for the K-01?
Lol, yup, that's focus peaking. When you see the white outline, it means it's in focus. You can disable it in the menu, but it's actually a really handy / almost integral feature.

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12-02-2012, 03:19 PM   #4
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Ah, that makes sense. My left brain and right brain probably are not working together, since earlier today I went through your suggested settings for a new K-01 and turned on focus peaking. No wonder I only noticed it now!

By the way, I really like the relative simplicity but power of the Pentax menus.

12-02-2012, 03:55 PM   #5
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QuoteOriginally posted by kpevav Quote
By the way, I really like the relative simplicity but power of the Pentax menus.
The menus haven't changed much over the years either, I just went from a K100D to a K-5, I felt right at home with the menus.
12-02-2012, 11:26 PM   #6
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Love the menu/interface that Pentax uses. So quick and easy to understand. My brother mostly uses the T3i which he loves but even he said how much better/streamlined the Pentax menus are.
12-05-2012, 05:57 PM   #7
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Follow-up: Focus Peaking is actually turned off. I made a quick video that is out of focus but shows clearly what I was trying to describe, visible on the blinds as intermittent horizontal black marks. In real time, it seems like a wave of electronic interference, usually on horizontal surfaces or lines. These occur only as the cameras auto focuses. My other two digital mirrorless cameras do not do this.

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12-05-2012, 06:51 PM   #8
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happens in fluorescent light sometimes, tv lighting, a lot of lighting outside of stores and resteraunts in big cities, it has to do with the flickering of the fluorescent light that happens to fast for the human eye to see but your camera can pick it up. I used to have a bunch of examples but I cleaned up my flickr, for the longest I didnt have a clue what was causing it as I like to shoot at night a lot and some city lights would cause the lines...

12-05-2012, 07:01 PM   #9
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QuoteOriginally posted by wanderography Quote
happens in fluorescent light sometimes, tv lighting, a lot of lighting outside of stores and resteraunts in big cities, it has to do with the flickering of the fluorescent light that happens to fast for the human eye to see but your camera can pick it up. I used to have a bunch of examples but I cleaned up my flickr, for the longest I didnt have a clue what was causing it as I like to shoot at night a lot and some city lights would cause the lines...
I just tried it in incandescent light, and it does the same thing. However, when trying it with another camera, that camera also had the momentary "interference," it was just more difficult to notice because the autofocus is faster.

Last edited by Elliot; 12-06-2012 at 07:46 AM. Reason: Update
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