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	<title type="html"><![CDATA[Forums - Bricks in Motion - Light flicker in DSLR]]></title>
	<link rel="self" href="http://bricksinmotion.com/forums/feed/atom/topic/23073/"/>
	<updated>2016-09-23T20:55:05Z</updated>
	<generator>PunBB</generator>
	<id>https://bricksinmotion.com/forums/topic/23073/light-flicker-in-dslr/</id>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362912/#p362912"/>
			<content type="html"><![CDATA[[quote=osomstudios]The optical zoom is on the lens, the digital zoom is a button on the camera body. Usually.

Hope that helps
osomSudios[/quote]

Thanks. That's actually what I hypothized it is, although it was good to see a confirmation of my theory.]]></content>
			<author>
				<name><![CDATA[LegoStudiosP]]></name>
				<uri>https://bricksinmotion.com/forums/user/130986/</uri>
			</author>
			<updated>2016-09-23T20:55:05Z</updated>
			<id>https://bricksinmotion.com/forums/post/362912/#p362912</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362908/#p362908"/>
			<content type="html"><![CDATA[The optical zoom is on the lens, the digital zoom is a button on the camera body. Usually.

Hope that helps
osomSudios]]></content>
			<author>
				<name><![CDATA[osomstudios]]></name>
				<uri>https://bricksinmotion.com/forums/user/130679/</uri>
			</author>
			<updated>2016-09-23T16:58:42Z</updated>
			<id>https://bricksinmotion.com/forums/post/362908/#p362908</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362906/#p362906"/>
			<content type="html"><![CDATA[Thanks for everyone's help, Feinstein Films got the solution. Still everyone's proposals helped me learn some stuff about my new camera, so thanks.]]></content>
			<author>
				<name><![CDATA[LegoStudiosP]]></name>
				<uri>https://bricksinmotion.com/forums/user/130986/</uri>
			</author>
			<updated>2016-09-23T15:26:28Z</updated>
			<id>https://bricksinmotion.com/forums/post/362906/#p362906</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362885/#p362885"/>
			<content type="html"><![CDATA[[quote=FeinsteinFilms][quote=LegoStudiosP][quote=Squid]One possible issue could be that the light source could be flickering.  Usually, if you want to test this, the best thing to do is wave your hand around and observe the blur with your own eyes while under the light source.

If your hand looks like several frames layered together, each clearly shaped like a hand, then your light source is actually flickering quite fast.

If your hand has a smooth consistent blur, then the light source probably isn't flickering really fast.

If super fast flickering is truly the issue, you can usually get around it by using a long exposure.  This will mostly average out the flicker and return fairly consistent frames.

If that's not the issue, it may be another one which I might have a fix for.[/quote]

About using a long exposure, how long? I tried with a 1 (wich also made overall the frame much brighter) and I still had the problem. Also, while doing this, I noticed that I just can't handle loghting from 0,5cm closeups. If the character moves, lighting gets brighter frame by frame. This, and the small brightness vibrations, how can I solve them? Exposure or some other setting? there are many settings I've modified so they're not automatic, but I'm not sure that it's enough.
Also sometimes I see grain in the screen, especially on close-ups. What's that I have to change in the settings?[/quote]

A shutter speed of around 1/4 - 1/2 seconds should be long enough to average out flicker caused by your lights. You can avoid making the overall picture too bright if you compensate by using a smaller aperature (larger f/stop number) or a  lower ISO. 
Your grain problem could be caused by high ISO. If you stick to an ISO of 400 or lower, you should be able to eliminate most, if not all, of your image grain. Another reason for image grain could be if you are using digital zoom instead of optical zoom. 

Hope this helps.[/quote]

Thank you very much, but how can I determine whether it's using optical or digital zoom? For all I know, I'm pretty sure it's an optical zoom, as I manually set it. Other than that, the use of very low ISO next to that shutter speed will allow to not change brightness between frames?

Sorry for being this annoying and ignorant, I'm new to DSLRs]]></content>
			<author>
				<name><![CDATA[LegoStudiosP]]></name>
				<uri>https://bricksinmotion.com/forums/user/130986/</uri>
			</author>
			<updated>2016-09-22T21:46:20Z</updated>
			<id>https://bricksinmotion.com/forums/post/362885/#p362885</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362879/#p362879"/>
			<content type="html"><![CDATA[[quote=LegoStudiosP][quote=Squid]One possible issue could be that the light source could be flickering.  Usually, if you want to test this, the best thing to do is wave your hand around and observe the blur with your own eyes while under the light source.

If your hand looks like several frames layered together, each clearly shaped like a hand, then your light source is actually flickering quite fast.

If your hand has a smooth consistent blur, then the light source probably isn't flickering really fast.

If super fast flickering is truly the issue, you can usually get around it by using a long exposure.  This will mostly average out the flicker and return fairly consistent frames.

If that's not the issue, it may be another one which I might have a fix for.[/quote]

About using a long exposure, how long? I tried with a 1 (wich also made overall the frame much brighter) and I still had the problem. Also, while doing this, I noticed that I just can't handle loghting from 0,5cm closeups. If the character moves, lighting gets brighter frame by frame. This, and the small brightness vibrations, how can I solve them? Exposure or some other setting? there are many settings I've modified so they're not automatic, but I'm not sure that it's enough.
Also sometimes I see grain in the screen, especially on close-ups. What's that I have to change in the settings?[/quote]

A shutter speed of around 1/4 - 1/2 seconds should be long enough to average out flicker caused by your lights. You can avoid making the overall picture too bright if you compensate by using a smaller aperature (larger f/stop number) or a  lower ISO. 
Your grain problem could be caused by high ISO. If you stick to an ISO of 400 or lower, you should be able to eliminate most, if not all, of your image grain. Another reason for image grain could be if you are using digital zoom instead of optical zoom. 

Hope this helps.]]></content>
			<author>
				<name><![CDATA[FeinsteinFilms]]></name>
				<uri>https://bricksinmotion.com/forums/user/133707/</uri>
			</author>
			<updated>2016-09-22T18:36:32Z</updated>
			<id>https://bricksinmotion.com/forums/post/362879/#p362879</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362875/#p362875"/>
			<content type="html"><![CDATA[[quote=Squid]One possible issue could be that the light source could be flickering.  Usually, if you want to test this, the best thing to do is wave your hand around and observe the blur with your own eyes while under the light source.

If your hand looks like several frames layered together, each clearly shaped like a hand, then your light source is actually flickering quite fast.

If your hand has a smooth consistent blur, then the light source probably isn't flickering really fast.

If super fast flickering is truly the issue, you can usually get around it by using a long exposure.  This will mostly average out the flicker and return fairly consistent frames.

If that's not the issue, it may be another one which I might have a fix for.[/quote]

About using a long exposure, how long? I tried with a 1 (wich also made overall the frame much brighter) and I still had the problem. Also, while doing this, I noticed that I just can't handle loghting from 0,5cm closeups. If the character moves, lighting gets brighter frame by frame. This, and the small brightness vibrations, how can I solve them? Exposure or some other setting? there are many settings I've modified so they're not automatic, but I'm not sure that it's enough.
Also sometimes I see grain in the screen, especially on close-ups. What's that I have to change in the settings?]]></content>
			<author>
				<name><![CDATA[LegoStudiosP]]></name>
				<uri>https://bricksinmotion.com/forums/user/130986/</uri>
			</author>
			<updated>2016-09-22T15:17:37Z</updated>
			<id>https://bricksinmotion.com/forums/post/362875/#p362875</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362874/#p362874"/>
			<content type="html"><![CDATA[[quote=SlothPaladin]All auto functions like lens stabilization need to be turned off?

Did you [url=https://vimeo.com/30974031]try this method[/url]? The one that fixed the problem Hazzat was having?[/quote]

I actually don't know where's that 'preview button' on my 1300D.]]></content>
			<author>
				<name><![CDATA[LegoStudiosP]]></name>
				<uri>https://bricksinmotion.com/forums/user/130986/</uri>
			</author>
			<updated>2016-09-22T15:15:55Z</updated>
			<id>https://bricksinmotion.com/forums/post/362874/#p362874</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362846/#p362846"/>
			<content type="html"><![CDATA[One possible issue could be that the light source could be flickering.  Usually, if you want to test this, the best thing to do is wave your hand around and observe the blur with your own eyes while under the light source.

If your hand looks like several frames layered together, each clearly shaped like a hand, then your light source is actually flickering quite fast.

If your hand has a smooth consistent blur, then the light source probably isn't flickering really fast.

If super fast flickering is truly the issue, you can usually get around it by using a long exposure.  This will mostly average out the flicker and return fairly consistent frames.

If that's not the issue, it may be another one which I might have a fix for.]]></content>
			<author>
				<name><![CDATA[Squid]]></name>
				<uri>https://bricksinmotion.com/forums/user/3704/</uri>
			</author>
			<updated>2016-09-20T13:31:45Z</updated>
			<id>https://bricksinmotion.com/forums/post/362846/#p362846</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362845/#p362845"/>
			<content type="html"><![CDATA[All auto functions like lens stabilization need to be turned off?

Did you [url=https://vimeo.com/30974031]try this method[/url]? The one that fixed the problem Hazzat was having?]]></content>
			<author>
				<name><![CDATA[SlothPaladin]]></name>
				<uri>https://bricksinmotion.com/forums/user/411/</uri>
			</author>
			<updated>2016-09-20T01:48:23Z</updated>
			<id>https://bricksinmotion.com/forums/post/362845/#p362845</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362841/#p362841"/>
			<content type="html"><![CDATA[[quote=riofore]
It could be your shadow or reflection on the set, that happens to me a lot when I put the lights up high. Also, the two comparison shots have slightly different focus points, so it's hard to compare them.[/quote]

I'm not sure about it being my shadow, although the lights are about half a meter (that's 1.5 feet I think?) high. What I was wondering is whether it's the tubes that flicker in a way I can't see with naked eye, but my camera detects, or just a camera setting I need to change.
By slightly different focus points, you mean exactly what? 
Also, I turned down the stabilizer, but I was wondering what equivalent or similar setting needs to be turned off.

Thank you anyways ;)]]></content>
			<author>
				<name><![CDATA[LegoStudiosP]]></name>
				<uri>https://bricksinmotion.com/forums/user/130986/</uri>
			</author>
			<updated>2016-09-19T21:58:56Z</updated>
			<id>https://bricksinmotion.com/forums/post/362841/#p362841</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362828/#p362828"/>
			<content type="html"><![CDATA[Where's the light in relation to the set? It's kinda hard to get the context of it from the pic.

It could be your shadow or reflection on the set, that happens to me a lot when I put the lights up high. Also, the two comparison shots have slightly different focus points, so it's hard to compare them.

Make sure the Auto Stabilizer on your lens (it's a switch on the left side of the lens) is turned off, and any equivalent features inside the camera.

Sorry I can't help more, but maybe you can try that out and maybe it'll work. :)]]></content>
			<author>
				<name><![CDATA[rioforce]]></name>
				<uri>https://bricksinmotion.com/forums/user/131977/</uri>
			</author>
			<updated>2016-09-19T15:12:18Z</updated>
			<id>https://bricksinmotion.com/forums/post/362828/#p362828</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362826/#p362826"/>
			<content type="html"><![CDATA[can somebody please help me out?]]></content>
			<author>
				<name><![CDATA[LegoStudiosP]]></name>
				<uri>https://bricksinmotion.com/forums/user/130986/</uri>
			</author>
			<updated>2016-09-19T14:50:18Z</updated>
			<id>https://bricksinmotion.com/forums/post/362826/#p362826</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362751/#p362751"/>
			<content type="html"><![CDATA[I'm using this existing thread for a similar kind of problem wich I'm not sure whether was answered or not.
I have bought yesterday a Canon 1300D with standard 18-55mm lens. While the scene setup allows me to focus where I want, I have noticed a slight change in the brightness from shot to shot. I did a few setting changes, such as white balance and iso,  and it's still there, slight but noticeable. Is the problem the lights that flicker impercettibly to me but percettibly to the camera? I have two neon tubes such as this:

[img]https://i.imgur.com/ThRRPf7.jpg[/img]

and here are two shots with slightly different brightness: 

[img]https://i.imgur.com/oqprb2i.jpg[/img]

[img]https://i.imgur.com/Ix5xuox.jpg[/img]

is it a settings problem in the camera or a lighting problem?]]></content>
			<author>
				<name><![CDATA[LegoStudiosP]]></name>
				<uri>https://bricksinmotion.com/forums/user/130986/</uri>
			</author>
			<updated>2016-09-11T17:45:29Z</updated>
			<id>https://bricksinmotion.com/forums/post/362751/#p362751</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362264/#p362264"/>
			<content type="html"><![CDATA[Nice! Glad it worked.]]></content>
			<author>
				<name><![CDATA[SlothPaladin]]></name>
				<uri>https://bricksinmotion.com/forums/user/411/</uri>
			</author>
			<updated>2016-08-25T01:26:29Z</updated>
			<id>https://bricksinmotion.com/forums/post/362264/#p362264</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Light flicker in DSLR]]></title>
			<link rel="alternate" href="https://bricksinmotion.com/forums/post/362234/#p362234"/>
			<content type="html"><![CDATA[[quote=SlothPaladin]Have you eliminated the possibility of aperture flicker? When you use a Canon lens on a Canon body it is opening the aperture up each shot, you can lock the aperture in place [url=https://vimeo.com/30974031]using this method[/url][/quote]
This fixed it!! Thank you. :)]]></content>
			<author>
				<name><![CDATA[Hazzat]]></name>
				<email><![CDATA[harry@bossert.com]]></email>
				<uri>https://bricksinmotion.com/forums/user/99/</uri>
			</author>
			<updated>2016-08-23T11:07:12Z</updated>
			<id>https://bricksinmotion.com/forums/post/362234/#p362234</id>
		</entry>
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