Filming with D810 — Shutter Speed?

Irish_Tom · 6 Jan 2016 at 19:02

Hi everyone, I've started playing around with video on my D810.

I've been reading blogs and watching tutorial videos on YouTube.

They all suggest that the shutter speed should be twice the frame rate; so 24fps should be shot at 1/50, 30fps should be shot at 1/60 shutter.

I've been doing this with a few test videos but the movement in all of them comes out really choppy and unnatural.

If I drop the shutter speed to match the frame rate (half the recommended shutter speed) the movement looks normal.

Should I go with what looks good, or do you think I'm doing something else wrong? If I leave it at half the recommended rate, am I asking for trouble when I add videos to YouTube for instance?

Has anyone got any experience with this? Cheers for any help you can give me.

Tysonator · 6 Jan 2016 at 19:40

Irish_Tom said:
Hi everyone, I've started playing around with video on my D810.

I've been reading blogs and watching tutorial videos on YouTube.

They all suggest that the shutter speed should be twice the frame rate; so 24fps should be shot at 1/50, 30fps should be shot at 1/60 shutter.

I've been doing this with a few test videos but the movement in all of them comes out really choppy and unnatural.

If I drop the shutter speed to match the frame rate (half the recommended shutter speed) the movement looks normal.

Should I go with what looks good, or do you think I'm doing something else wrong? If I leave it at half the recommended rate, am I asking for trouble when I add videos to YouTube for instance?

Has anyone got any experience with this? Cheers for any help you can give me.

When I shoot video on my Canon EOS 7D it is all in manual.
Yes you correct regarding the shutter speed.
Also the ISO has to be set to one value i.e ISO 100 or 200 etc not auto.
This can cause a flickering effect. Also the aperture does not cause choppy issues. It just adjusts the video darker or lighter so really the exposure of the video.

Irish_Tom · 6 Jan 2016 at 20:11

Thanks Tysonator.

It's all set to manual, I'm not changing the aperture, and the ISO it fixed at 320 (I've read multiples of 160 provide the least noise).

So it seems that the 'recommended' or best shutter speed is giving a worse result…

Kei · 6 Jan 2016 at 20:11

Pans, zooming and fast moving subjects do not work at all nicely at low framerates. Use 50 fps instead. 1080p50 comes out lovely and smooth on my D810. Auto ISO works better than having to tweak the aperture or shutter speed mid shoot and has zero effect on the apparent smoothness, just gets a tad noisier as it rises.

Irish_Tom · 6 Jan 2016 at 20:15

Thanks Kei I'll try 50fps.

However, it's the fast movement that looks better at 1/30 than 1/60 when shooting at 30fps…

Kei · 6 Jan 2016 at 20:19

The slower shutter speed allows for more blur and consequently will look slightly better, but it will still seem slightly stuttery. 50fps will seem very smooth by comparison, but not everyone likes it as it doesn't seem as "filmic".

Spleen Sauce · 6 Jan 2016 at 20:35

Very daft question, but you're using a quick memory card, right?

Irish_Tom · 6 Jan 2016 at 21:33

Kei said:
The slower shutter speed allows for more blur and consequently will look slightly better, but it will still seem slightly stuttery. 50fps will seem very smooth by comparison, but not everyone likes it as it doesn't seem as "filmic".

I'll give it a go tomorrow.

Spleen Sauce said:
Very daft question, but you're using a quick memory card, right?

Yeah, I've got an SD and CF card, both ScanDisk Extreme Pro, 95 and 160Mb/s respectively. There's no noticeable difference in video quality between the two cards as far as I can tell.

Tysonator · 7 Jan 2016 at 10:25

Irish_Tom said:
I'll give it a go tomorrow.

Yeah, I've got an SD and CF card, both ScanDisk Extreme Pro, 95 and 160Mb/s respectively. There's no noticeable difference in video quality between the two cards as far as I can tell.

The cards seem fine as I think from memory you need a minimum of 30Mbps for HD video !

Using 24 or 25 fps is the normal cinema effect video and has mentioned in this thread fast moving objects need a much higher frame rate. If want to do slowmo then you need some very fast frame rates. When you slow down it needs to be back at 24fps. So 50fps clip can be slowed down by half speed for example.

Good luck :cool: