Video Cameras forum

General discussion

flicker +wavy lines in Canon Hf 20 video

i need some help. i have got the above mentioned camcorder. a good part of my video has got some kind of wavy lines and flicker in it. flicker is often in building windows, horizontal lines, or when its trying to get a detail of something in the back ground. I have played around with the shutter speed and other controls but i just cant quite seem to get rid of this. read the manual too. i am bummed out since the video has got this. any suggestions?
*much of it can be seen in just the lcd panel.
i have been using this with a Mac and iMovie '09. i am wondering if there is also any way to remove the flicker with some sort of additional software or other way?
i also noticed this sort of flicker and wavy lines in a another stores same model. thus i don't really think it is a defect.


Discussion is locked
You are posting a reply to: flicker +wavy lines in Canon Hf 20 video
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: flicker +wavy lines in Canon Hf 20 video
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
We may need to discuss "how things work."

In reply to: flicker +wavy lines in Canon Hf 20 video

I wonder if this is what you see when we take a picture and the scene has some horizontal line in it that is slightly at a different angle than our camera's sensors. To explain this I would need a few minutes with a drawing pad, and talk about sensors, scan lines and such but there is nothing amiss here. In fact this area is where film excels for reasons we would again have to dive into how things work.

The LCD display should always be the worst at this effect. Don't rely on that because it's a downsampled image.

Collapse -
you can see a bit here

In reply to: We may need to discuss "how things work."

Collapse -
No I can't see that.

In reply to: you can see a bit here

But if you will research more about moire patterns and how these things work you will gain the understanding you need.

Light reading at

This issue is well known but eludes some at first.

Popular Forums

Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


This one tip will help you sleep better tonight

A few seconds are all you need to get a better night's rest.