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Blackmagic Pocket Cinema Camera 4K


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1 minute ago, deezid said:

https://drive.google.com/open?id=1lYduNOHyHSZj_SZPlRy96GJdZUFj8L6Z

A short dynamic range comparison by @tidefilm
Matched the source files (the shadows of the GH5s are completely desaturated) and added a bit of blur to take away the edge.

Please download the file. The Pocket 4K smokes the GH5s in this test, it's not even fair. Not only no sharpening but also way cleaner. The GH5s shows some horizontal noise patterns (was shot at 25p)

Good find. Yes, the lack of sharpening on the Pocket is another huge plus. I love the smoothness of the image while at the same time not lacking detail at all.

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My dear erstwhile member can you please stop attacking John Brawley now. I have long since given up on camera forum arguments so might not be completely up on who is right and who is wrong-evil /

I like the pictures. A lot.  This camera will probably replace the micro cinema camera for me as it’s not much bigger and is much easier to work with.  I didn’t feel as strongly about the 4K

What a shame. Who are these "deep state" BMD insiders that are here pushing an agenda ? Myself and Hook.  Who else ?  What do you guys think, there's a plot and conspiracy ?  You guys don't wat t

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12 minutes ago, Anaconda_ said:

To everyone who asked me why they shouldn’t shoot 60fps (or 120) for a 25p project. This is why. Everything is so flickery. 

I live in a 50hz country (Australia) and just did a test here at home. Setting the HFR frame rate on the Pocket4k to 60p (but keeping the project rate at 25p) does result in flicker at 180degree shutter as would be expected. But, If you change the shutter to 216 degrees, the flicker goes away. Just tested this with a flouro tube, domestic LED's and incandescent bulb and no flicker with any of them.

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13 minutes ago, Anaconda_ said:

Right. You could also shoot at 30p with that shutter angle and the lights won’t flicker. I still wouldn’t do it though haha. 

Why is that? Do you only use 180 degree shutter exclusively?

Not sure why you would want to shoot 30fps though. If you wanted a very slight slowmo effect you could shoot at 33fps which eliminates flicker at 180 degrees with LED's and incandescent. A bit of rolling flicker with Flouro's though at 33fps and 180 degree but this is fixable by choosing 237.6 degrees

When shooting 60p, it is more for slow and a shutter angle of 216 is perfectly acceptable. 

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Mostly, but it’s more of a ‘only use multiples of project frame rate exclusively’.  I only mentioned 30fps as it’ll have the same flicker as 60 at 180deg  

The shutter angle/speed introduces or reduces motion blur. So if you shot at 60fps with 90deg you’d also loose (hide) the flicker. In that scenario though, you won’t have sharp slowmo which mean ugly footage. 

I actually read for nicer slow motion, you should use more than 180deg. The sharper the better. 

Motion blur at real time allows the footage to look realistic, but slow motion by nature is not realistic and so shouldn’t live by the 180 rule. 

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3 minutes ago, Anaconda_ said:

Mostly, but it’s more of a ‘only use multiples of project frame rate exclusively’.  

The shutter angle/speed introduces or reduces motion blur. So if you shot at 60fps with 90deg you’d also loose (hide) the flicker. In that scenario though, you won’t have sharp slowmo which mean ugly footage. 

I actually read for nicer slow motion, you should use more than 180deg. The sharper the better. 

Motion blur at real time allows the footage to look realistic, but slow motion by nature is not realistic and so shouldn’t live by the 180 rule. 

But the 216 degree shutter angle I suggested IS more than 180degrees. I wouldn't suggest shooting slow at 90 degrees.

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Ah - but you edited you post while I was replying haha. 

Anyway, my point is if you deviate from multiples of the project frame rate you’re allowing space for flicker and if you change your mind later and want to play back at normal speed, you’re making life hard for yourself. 

Stick to multiples of the project frame rate and you can use whatever shutter speed/angle you want and never worry - even if you want to playback at full speed later. 

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5 minutes ago, Anaconda_ said:

Ah - but you edited you post while I was replying haha. 

I did, but I didn't change anything that you referred too. I stated 216 degrees from the start. Never edited that.

4 minutes ago, Mattias Burling said:

Beacuse then you limit all your clips to slowmo only. If you want some realtime or do a warp it will look like a porly made stop motion. 

 

Yes, shooting at 50p gives you more flexibility in post but if you know what you are trying to achieve when you are shooting, 60p is a viable option and can be used without flicker if need be.

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7 minutes ago, Anaconda_ said:

Well then I jumped the gun with my response, sorry about that.

If 60p at 216 works for you, crack on. Personally I’d stick to 50p and have more flexibility, both while shooting and in the edit. 

No worries and for most scenarios, I completely agree that 50p is a safer option.

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5 minutes ago, Anaconda_ said:

Well then I jumped the gun with my response, sorry about that.

If 60p at 216 works for you, crack on. Personally I’d stick to 50p and have more flexibility, both while shooting and in the edit. 

ah OK, so take a look here:

http://urbanvideo.ca/avoid-video-flicker

Hope this helps,

E : -)

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1 hour ago, A_Urquhart said:

Hi Turbo, I too would love to move over to BMC user but while I am registered there, have never been given permission to post and have contacted the mods countless times but no-one seems to be home.

Looking forward to a forum that isn't run by a Nazi. Andrew closed the topic I created directing arguments between the GH5 and Pocket4k to another thread. It's his way or the highway here at EOSHD! ?

 

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Sorry about the detour then...

Can the GH5 shoot 60p at 180 with no flicker?

@Emanuel nice link - but I still feel like you're opening holes to make mistakes in by choosing 60p. All you're gaining is slightly slower footage, but in my opinion it's costing a lot both on the shoot and in the edit. You need to ensure your shutter speed is right (with 50p anything will work regarding the flicker), and you're locked into slow motion.

If you're making a documentary it's very hard to tell how you want to use our footage until you're editing it. At 60p you can't do any ramping or play with it at all really.

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58 minutes ago, Emanuel said:

Looks some Iscorama glass coupled there. To me, bothers much more that flickering over there which could be corrected with the use of proper shutter speed BTW : ) Aside the dichotomy 50Hz vs 60Hz for 25/50/100 or 24/60/120 fps, respectively.

Some guys on facebook prefer to concentrate upon the flickering (which was just a 50hz/60 p issue that I wanted to check) or the anamorphic effect to the image. But they don't wan to see the red clipping. 

The settings

Capture d’écran 2018-10-13 à 23.05.51.png

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3 minutes ago, Slothorp said:

prefer to concentrate upon the flickering (which was just a 50hz/60 p issue that I wanted to check) or the anamorphic effect to the image. But they don't wan to see the red clipping. 

That's because the flickering is much more distracting than the red lights. If you didn't mention it, I wouldn't have noticed.

Red light is hot on basically every camera I've used, especially when there's less light around it like in this shot. For me in this night scene, the red isn't a problem at all. 

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