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Can You Slow Motion 24fps fppotage? (And should you?)
OffTheMark [Avatar]
Member Joined: Jun 12, 2016 10:39 Messages: 114 Offline
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The camera I am looking to buy (sony a6300) shoots 4K in super 35 format at 24fps. That 4k footage is supposed to be gorgeous (downsampled from 6k)

So is it possible to slow that down in powerdirector without making it look horrible?

What I am doing is basically real estate "walk through" videos, but I would like the ability to do slow motion as well.

At the 1:14 mark through the 1:24 mark you will see where he slows down footage:

https://player.vimeo.com/video/135481663?byline=0&portrait=0

If you happen to watch the rest of the footage, you will also notice times where he is shooting inside of a room with a ceiling fan and it appears that the fan is moving slowly. I like that effect as well.

I don't plan on doing sports / action with it, but you never know... Maybe eventually but if so, I wll probalby upgrade to a different camera...
tomasc [Avatar]
Senior Contributor Joined: Aug 25, 2011 12:33 Messages: 6464 Offline
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Don't know much about that vimeo link. If you could download the original then you can check it for resolution and frame rate. Doubt that it is 24 fps.
OffTheMark [Avatar]
Member Joined: Jun 12, 2016 10:39 Messages: 114 Offline
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Quote: Don't know much about that vimeo link. If you could download the original then you can check it for resolution and frame rate. Doubt that it is 24 fps.


Yes, I understand it is NOT 24fps in that video. He is shooting 1080p at 60 or 120fps.

But if I want to do something similar, is that possible shooting at 24fps???

Or would it look horrible?

Thanks in advance.
Longedge [Avatar]
Senior Contributor Joined: Apr 28, 2011 15:38 Messages: 1504 Offline
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Quote: {snip}He is shooting 1080p at 60 or 120fps.{snip}


Before your follow-up I was going to remark that since the camera will shoot 1920x1080 120p then, for me that would be the way to go if you're wanting to do slo-mo. I reckon that your choice of 'glass' will be a more important factor in the end.
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IMO you don't need 4K for real estate videos. HD still looks good on 70" TV's...

Just get a camera that can shoot HD in 120FPS.

This message was edited 2 times. Last update was at Jun 30. 2016 05:13

OffTheMark [Avatar]
Member Joined: Jun 12, 2016 10:39 Messages: 114 Offline
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Quote: IMO you don't need 4K for real estate videos. HD still looks good on 70" TV's...

Just get a camera that can shoot HD in 120FPS.


You are correct, one TECHNICALLY doesn't really need 4k.

The camera I want (sony a6300) has very good low light performance and great 4k, but apparently is NOT that sharp in HD, oddly enough.

So a lot of people suggest shooting in 4k and then downsampling to 1080p in post.

But it only offers 4k in super 35 fromat at 24fps.
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Because that's not a video camera. It's a photo camera and there are limitations to what they can do.

Here you go:
http://www.sony.com/electronics/handycam-camcorders/hdr-cx900

Zeiss lens, 1" BSI sensor...
Anonymous [Avatar]
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Quote: Because that's not a video camera. It's a photo camera and there are limitations to what they can do.

Here you go:
http://www.sony.com/electronics/handycam-camcorders/hdr-cx900

Zeiss lens, 1" BSI sensor...


Hello, OffTheMark!

The camera you're looking to buy(sony a6300) may well be very good for shooting at low-lux but there are many dedicated videocameras that are also capable of shooting in such low-lux conditions(low light levels). As you're doing real-estate "walk-through" videos, is such a capability all that necessary? Surely, a house or flat(as we call them, rather than "apartments" in Australia) is shown at its best in well-lit videos. But if low-lux is what you need... I've watched quite a few ghost-hunting videos on YouTube, and the sort of videocamera sought by just about all of the producers of such videos is one capable of shooting in low-lux situations(night-time shooting in old houses, factories, etc). The other difference is that dedicated videocameras these days shoot either MP4(H.264) or AVCHD and in 16.9 aspect ratio, whereas nominally-stills-cameras, if they shoot video, might only shoot in 4:3 aspect ratio. And note, I emphasised the word "might" in that sentence.

And for slowing down a video, yes, it's possible, but it's up to you whether you want to apply such an effect, and where it would be appropriate. That's something only you can determine.

Neil.
OffTheMark [Avatar]
Member Joined: Jun 12, 2016 10:39 Messages: 114 Offline
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Because I wanted to discuss further the best camera for low light performance, I created a separate thread here:

http://forum.cyberlink.com/forum/posts/list/48876.page

Hopefully that thread will not be deleted by the moderators as it is off topic to powerdirector.

I would kindly ask that if you would like to discuss low light performance then PLEASE share your thoughts in that thread. I welcome all suggestions.

Just didn't want THIS thread to get too far off topic from slowing down video shot at 24fps.
Maliek [Avatar]
Senior Contributor Location: San Antonio, Texas USA Joined: Nov 10, 2012 12:01 Messages: 851 Offline
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You can slow down 24fps footage but it will look jerky compared to footage shot at a higher frame rate. The higher the frame rate the better the slow motion will look.

For best results, if you have yet to purchase the a6300 look for an alternative that can shoot video at 60, 120, or 240 fps and at 1080p resolution. This will give you the ability to produce the highest quality slow motion video as well as minimize some of the headaches that come with editing 4K video such as editing time, storage capacity, cost, etc. Subscribe to PowerDirector University on YouTube.

Subscribe to PDU Mobile on YouTube.
OffTheMark [Avatar]
Member Joined: Jun 12, 2016 10:39 Messages: 114 Offline
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Oh hey, Maliek.

Just realized yo are the same Maliek from the PD University youtube videos. Sorry, I am a bit slow...

Love your videos. they are very helpful.

The a6300 will shoot 1080p at 60fps and slightly cropped at 1080p 120fps. Just it is a bit softer when compared to its 4K output.

It looks like increasing the detail level a little bit helps to get it sharper, but just worried about what it does to noise and to dynamic range.

Thanks again for the input and all the great videos!!!
Maliek [Avatar]
Senior Contributor Location: San Antonio, Texas USA Joined: Nov 10, 2012 12:01 Messages: 851 Offline
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Quote: t looks like increasing the detail level a little bit helps to get it sharper, but just worried about what it does to noise and to dynamic range.


Yes it's me. laughing

The a6300 shoots 4K at 100Mbps and 1080p at 50Mbps so there will be a difference in quality but the dynamic range should be the same (dynamic range is the sensitivity of a camera to light and how it affects different shades of color). The more stops of light that a camera’s sensor can see, the higher the dynamic range. So bascially, dynamic range doesn't change when you switch from 4K to 1080.

You can cut down on noise and create a sharper image by shooting in 4K and downscaling to 1080p.

At the end of the day it is really up to what your preference is. If you prefer 4K roll with it. Having the proper computer specs, storage capacity, and patience to deal with editing 4K footage will be important factors to consider. Subscribe to PowerDirector University on YouTube.

Subscribe to PDU Mobile on YouTube.
OffTheMark [Avatar]
Member Joined: Jun 12, 2016 10:39 Messages: 114 Offline
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Thanks so much, Maliek, both for the advice and the tutorial videos!!!
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