Aerial Photography and Video Discuss the growing field of aerial photography and aerial video right here!

Video films too dark

Reply

Old 12-30-2003, 02:36 PM
  #1  
BGR
Member
Thread Starter
 
Join Date: Dec 2003
Location: Oceanside, CA
Posts: 31
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Video films too dark

I have watched many videos and most of them seem so dark it is hard to really see. Is this the norm for these CCD payload cameras?
BGR is offline  
Reply With Quote
Old 12-30-2003, 02:45 PM
  #2  
mr.rc-cam
Senior Member
 
mr.rc-cam's Avatar
 
Join Date: Jun 2002
Location: West Coast, CA
Posts: 536
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Video films too dark

Can you post links to the dark videos? That will help us identify which camera technology was used.

I have a feeling you are referring to the wireless video systems that use CMOS based cameras. These are usually very low cost designs and tend to have poor response to intensity changes and high contrast scenes. Good CCD sensor based cameras do not have this issue, but they tend to cost more. Budget about $100 for a good CCD bare-board camera.

Examples of the video quality from a Panasonic CCD camera can be seen at the RC-CAM site's movie catalog page.
mr.rc-cam is offline  
Reply With Quote
Old 12-30-2003, 03:17 PM
  #3  
BGR
Member
Thread Starter
 
Join Date: Dec 2003
Location: Oceanside, CA
Posts: 31
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Video films too dark

It seems that just about every video that I have seen either from the ground or onboard was rather dark. here is one site that seems to have this issue, not only from ground based camers but from onboard systems aswell. [link=http://fubar1.freeservers.com]Video Link[/link]
BGR is offline  
Reply With Quote
Old 12-30-2003, 04:14 PM
  #4  
mr.rc-cam
Senior Member
 
mr.rc-cam's Avatar
 
Join Date: Jun 2002
Location: West Coast, CA
Posts: 536
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Video films too dark

The ground based videos I sampled at that site were from a camcorder. They looked good to me. The one aerial video was using a CMOS based video camera, so it had the usual issues (too dark sometimes, too washed out at other times).

If all AVI videos look poorly then it may just be your PC's video card setup. Try using the True Color 32-bit video mode found in your display properties settings. Don't be too bashful to use the monitors contrast/brightness controls too.
mr.rc-cam is offline  
Reply With Quote
Old 12-30-2003, 04:28 PM
  #5  
aaron2874
Senior Member
 
Join Date: May 2003
Location: League City, TX
Posts: 488
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Video films too dark

Filming under overcast skys can be a problem too. In my videos, they seem too dark sometimes due to a cmos camera and an overcast sky. I wish the weather would be more cooperative when I'm shooting aerial footage...
aaron2874 is offline  
Reply With Quote
Old 12-30-2003, 08:32 PM
  #6  
Fubar-One
Senior Member
My Feedback: (1)
 
Fubar-One's Avatar
 
Join Date: Mar 2003
Location: Canyon Country, CA
Posts: 1,774
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Video films too dark

If the videos seem dark to you, it might be your computer. I have an airborne video or two (this link being to my site) that are dark due to filming on a cloudy day. 98% of the ground based camcorder shot video was shot using a very high quality Sony Digital 8 camera. I have run into situations where the rendered media file is a bit darker than the original but the video on the tape itself is not dark. The camcorder used works very well in low light conditions so I am not sure what the problem is.
They dont look dark to me!
ORIGINAL: BGR

It seems that just about every video that I have seen either from the ground or onboard was rather dark. here is one site that seems to have this issue, not only from ground based camers but from onboard systems aswell. [link=http://fubar1.freeservers.com]Video Link[/link]
Fubar-One is offline  
Reply With Quote
Old 12-30-2003, 09:01 PM
  #7  
Nik
Senior Member
My Feedback: (12)
 
Nik's Avatar
 
Join Date: Jan 2003
Location: Painted Post, NY
Posts: 286
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Video films too dark

I had the same prolem...
The first time I flew with the Camera it pointed straigt forward (Horizontally)
I fixed it by putting the camera a little father under the wing and changed the angle the camera looks at the horizon by 20-30 degrees down...

-Nik
Nik is offline  
Reply With Quote
Old 12-30-2003, 10:38 PM
  #8  
BGR
Member
Thread Starter
 
Join Date: Dec 2003
Location: Oceanside, CA
Posts: 31
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Video films too dark

Fubar-One. Please dont take my useing your videos as an example an indication that there is anything wrong with them. I have watched allot of RC flying videos and they are all dark in varying degrees. I am sure that your videos are just fine and that the problem is on my end. My applogies if I in any way caused you to believe i was criticizing your fine work.

I have since done some adjustments to my gamma correction and although my screen is now a tad too bright for my taste it does make your videos and others show much brighter than with my previous settings.
BGR is offline  
Reply With Quote
Old 12-31-2003, 10:51 PM
  #9  
Fubar-One
Senior Member
My Feedback: (1)
 
Fubar-One's Avatar
 
Join Date: Mar 2003
Location: Canyon Country, CA
Posts: 1,774
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Video films too dark


Nononononono!
Wasnt taking it that personal, just kinda tripped when I realized it was my site that the link went to. Was thinking, "Hmmm... Lets check out the site he's talking about, Hey, its mine!" sort of thing. No problemo!
Its cool![8D]
Fubar-One is offline  
Reply With Quote
Old 01-03-2004, 01:32 AM
  #10  
Skycam41
 
Skycam41's Avatar
 
Join Date: Sep 2003
Location: Lethbridge, AB, CANADA
Posts: 619
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Video films too dark

I would think that a lot of the problem with dark looking video's is caused by the camera's metering system. You will notice that when the plane is banked with the camera facing towards the ground the picture looks "normal" and as soon as you get some brighter sky in view it takes a moment for the camera to adjust to the brighter scene so the shutter can speed up and the opposite applies when shooting bright sky and then dipping a wing to a darker scene where the shutter needs to slow down to allow more light in. When you have a scene that includes bright sky and the ground all in one, the camera's metering system is more bias towards bright scenes and therefore the camera "sees" a large area of brightness and says, "my goodness, it's really bright out, speed up the shutter to compensate for such a bright subject" thus making the ground portion of the picture look much darker than it is......well OK the camera does not talk to itself but you get the picture. Makes you appreciate how good the human eye/brain is! Having the camera pointing slightly downwards should help with the "exposure" making it more consistent....you could always keep turning the same direction so the camera was shaded from the sun..lol.

Mike
Skycam41 is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service