Getting a 24p look with NEX-5

Started Apr 19, 2011 | Discussions
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GAD807 Regular Member • Posts: 138
Getting a 24p look with NEX-5

I don't know about NTSC but for PAL
slower than 1/25 = 1/25 iso 3200 in video mode
1/30 = 1/25 iso 800-6400?
last step 1/30 before 1/40 = 1/48 iso 200, 25 fps (for a near perfect 24p look!)

I shoot in this order:
1. Set focus with focus assist
2. Set 1/48
3. Start recording and hold shutter
4. Adjust aperture or ND for correct exposure

macsoft Regular Member • Posts: 236
Re: Getting a 24p look with NEX-5

I wanna try this.
you gotta hold the shutter button all thru the recording?
what is ND and how do you ajust it during rec?

Thanks
--
byMaC

jazzroy1972 Regular Member • Posts: 172
Re: Getting a 24p look with NEX-5

OMG it works!!
noise-free low light videos!
this is amazing, thanks for the tip.

Just a question: how do yu set 1/48 if we have 1/40 and then 1/50 ?

now I have to find a way of having the button pressed..

crisg0112 Regular Member • Posts: 349
Re: Getting a 24p look with NEX-5

Hi,

Great tip, can't wait to try it when I get home.

Have you tried using the Sony Remote Commander?

Thanks again

Cris

 crisg0112's gear list:crisg0112's gear list
Sony RX1 Sony RX100 II
GAD807 OP Regular Member • Posts: 138
Re: Getting a 24p look with NEX-5

jazzroy1972 wrote:

OMG it works!!
noise-free low light videos!
this is amazing, thanks for the tip.

Just a question: how do yu set 1/48 if we have 1/40 and then 1/50 ?

Thats the tricky part and you probably need some practicing.
You will get 1/48 video if you shoot at 1/30 just on the border to 1/40.

In a low light situation you need a light source like a mobile and in daylight just cover the lens until you get 1/30.

macsoft Regular Member • Posts: 236
Re: Getting a 24p look with NEX-5

How do i ajust aperture while holding the shutter while recording?
i cant

GAD807 wrote:

I don't know about NTSC but for PAL
slower than 1/25 = 1/25 iso 3200 in video mode
1/30 = 1/25 iso 800-6400?
last step 1/30 before 1/40 = 1/48 iso 200, 25 fps (for a near perfect 24p look!)

I shoot in this order:
1. Set focus with focus assist
2. Set 1/48
3. Start recording and hold shutter
4. Adjust aperture or ND for correct exposure

-- hide signature --

byMaC

GAD807 OP Regular Member • Posts: 138
Re: Getting a 24p look with NEX-5

To make it faster you can put a picture with the right brightness in your mobile and then cover the lens with the picture. It takes some testing at first but then just bring up the phone and nail the 1/48s shutter every time.

Not really user friendly but at least a possibility and I don't think you can get any other ISO than 200.

GAD807 OP Regular Member • Posts: 138
Re: Getting a 24p look with NEX-5

macsoft wrote:

How do i ajust aperture while holding the shutter while recording?
i cant

You can do that with older manual lenses.

GAD807 OP Regular Member • Posts: 138
Re: Getting a 24p look with NEX-5

jazzroy1972 wrote:

now I have to find a way of having the button pressed..

You can always buy a lockable cable release and then leave the camera on a tripod.

headofdestiny Veteran Member • Posts: 9,226
Re: Getting a 24p look with NEX-5

GAD807 wrote:

jazzroy1972 wrote:

now I have to find a way of having the button pressed..

You can always buy a lockable cable release and then leave the camera on a tripod.

Where can you buy a nex cable release?

GAD807 OP Regular Member • Posts: 138
24p look or low ISO

If I'm remembering this right you can also shot at 1/40 to make sure you are shooting at low ISOs.

1/40 in still mode = 1/48 or 1/60 in video mode at ISO 200

jazzroy1972 Regular Member • Posts: 172
Re: 24p look or low ISO

I'm a bit confused..

How do you know the recording framerate and ISO ?!?

The Nex doesn't display it while recording, and reviewing the movie there's no way to know the capturing framerate, being recorded at 25p.

I think there's no lockable cable release for Nex, the button has no screw hole

npires
npires Senior Member • Posts: 1,544
Re: 24p look or low ISO

Agreed please elaborate further please!

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Sony Cyber-shot DSC-RX100 III Sony Alpha NEX-5 Sony Alpha 7 II Sony FE 55mm F1.8 Sony FE 70-200 F4 +3 more
GAD807 OP Regular Member • Posts: 138
Re: 24p look or low ISO

jazzroy1972 wrote:

I'm a bit confused..

How do you know the recording framerate and ISO ?!?

The Nex doesn't display it while recording, and reviewing the movie there's no way to know the capturing framerate, being recorded at 25p.

I think there's no lockable cable release for Nex, the button has no screw hole

So your are telling me it can't be done, because you don't know how to do it?

Framerate for PAL-version is always 25fps but no one can see the difference between 24p with 1/48s and 25p with 1/48s shutter.
You can get shutter speed and gain value (ISO) from DVMP Pro.

I don't know if there is a cable release specifically for the NEX. Just buy a ordinary one and a fitting bolt, and then make some modifications, or use a rubberband, iPhone or whatever...

cybersri Regular Member • Posts: 238
Re: 24p look or low ISO

Thanks for the Tip on the DVMP Pro. Even the demo version shows the frame rate and the amount of noise.
In low light videos Nex try to keep the frame rate at 25.
Seems like it's the minimum frame rate for nex.

zoranT Contributing Member • Posts: 915
I don t get it

Great posting, but: I thought only aperture is kept video mode, anything else is dependent on auto algorithms in video. My experience with the NEX shows that the camera behaves differently even in similar low light situations: particularly ISO gain.

I will try what you suggest, but I don t understand how or why it should work, even if I can reproduce it. What do you know about the algorithms that others don t know?

GAD807 OP Regular Member • Posts: 138
Re: I don t get it

zoranT wrote:

Great posting, but: I thought only aperture is kept video mode, anything else is dependent on auto algorithms in video. My experience with the NEX shows that the camera behaves differently even in similar low light situations: particularly ISO gain.

I will try what you suggest, but I don t understand how or why it should work, even if I can reproduce it. What do you know about the algorithms that others don t know?

Yes, there's one algorithm for photo and one for video. Now you can do a chart and see what video values every still shutter speed can have. It's pretty easy except for 1/30s where you can have 7-8 different values, but the most important one is the last value (1/48s ISO 200).

Now I don't have to rely on luck or fluke to know how to avoid too high ISO or too fast shutter or banding in some situations. Now I know that I can get max ISO at 1/25s (photo) and low ISO at 1/30s (photo).

First I found it strange that I got banding when I shot at 1/100s, but then I did some tests that showed that 1/100s still = 1/150s video. The only setting that is the same in photo/video mode is at 1/4000s.

Componist New Member • Posts: 11
Re: I don t get it

Hello,

I am confused in this debate, still do not understand how I can upload the video to set the shutter speed on my Sony NEX-5 worth 1 / 48? The setting is no speedometer, it would probably be the best procedure to see "how it's done" at some video .... is it somewhere on the Internet (YouTube or Vimeo) manual? I would be grateful to see the process

GAD807 OP Regular Member • Posts: 138
Re: I don t get it

Componist wrote:

Hello,

I am confused in this debate, still do not understand how I can upload the video to set the shutter speed on my Sony NEX-5 worth 1 / 48? The setting is no speedometer, it would probably be the best procedure to see "how it's done" at some video .... is it somewhere on the Internet (YouTube or Vimeo) manual? I would be grateful to see the process

First step is to set your camera to A-mode and Auto-ISO, then read the first post again.

zoranT Contributing Member • Posts: 915
I still don t get it

Yes, there's one algorithm for photo and one for video. Now you can do a chart and see what video values every still shutter speed can have. It's pretty easy except for 1/30s where you can have 7-8 different values, but the most important one is the last value (1/48s ISO 200).

Now I don't have to rely on luck or fluke to know how to avoid too high ISO or too fast shutter or banding in some situations. Now I know that I can get max ISO at 1/25s (photo) and low ISO at 1/30s (photo).

The last sentence doesn t make sence to me, photo adjustments are not carried over to video, so they are irrelevant. Or you are implying and take it for granted that the exposure measurement in camera will choose the same values whether in photo or in video mode??
What makes you so sure about it?

Anyway, I could not reproduce what you suggest, or perhaps you are not explicit enough. Does the aperture value matter? No matter what exposure adjustment you have in still mode, once you switch to video, all parameters are measured anew - aside from aperture. = There is no way to control shutter in video - the system may as well chose high ISO + high shutter in low light; you did not reveal how you came to your findings, but my experience is that the camera behaves pretty much randomly in low light (sometimes high gain, sometimes lower gain in similar conditions).

I have no way to get the EXIF in video, I m on Mac, don t know any program, but from judging first videos the procedure doesn t make any difference....

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