Screen Capture [message #391389] |
Sun, 01 March 2020 22:05 |
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Originally posted by: Anthony Adverse
Hmm I've been poking around with the GS->SCART cable, and trying to get some photos thereof. At the moment everything comes out looking like its written in neon and all glowing. Even after playing with brightness and contrast. Anyone got any tips for taking photos of a lit source?
Interstingly enough, the VidHD on a different LCD screen actually behaves a bit better, not quite as glow in dark, but does suffer from the same to some degree.
A
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Re: Screen Capture [message #391397 is a reply to message #391389] |
Mon, 02 March 2020 12:16 |
Michael J. Mahon
Messages: 1767 Registered: October 2012
Karma: 0
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Senior Member |
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Anthony Adverse <the.ertceps@gmail.com> wrote:
> Hmm I've been poking around with the GS->SCART cable, and trying to get
> some photos thereof. At the moment everything comes out looking like its
> written in neon and all glowing. Even after playing with brightness and
> contrast. Anyone got any tips for taking photos of a lit source?
>
> Interstingly enough, the VidHD on a different LCD screen actually behaves
> a bit better, not quite as glow in dark, but does suffer from the same to some degree.
>
> A
>
I presume you’re using a digital camera/phone to capture the images.
It’s very common for digital captures to have excessive contrast and
saturation—think of it as digital Kodachrome—because people usually prefer
it to a more realistic depiction. This exaggeration becomes particularly
obvious in photos of light sources, as you’ve found.
Cameras often have adjustments to modify these “enhancements”, or they can
be corrected by post-processing the images.
However, a simple way to reduce the effects is to reduce the exposure.
Light metering frequently underestimates the brightness of displays that
source light.
Check the exposure controls of your camera/phone and reduce the suggested
exposure by a factor of two to four (one or two f stops). This should
improve results, but post-processing may still be needed to make the
captured image look like the display.
--
-michael - NadaNet 3.1 and AppleCrate II: http://michaeljmahon.com
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Re: Screen Capture [message #391419 is a reply to message #391397] |
Mon, 02 March 2020 20:53 |
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Originally posted by: Anthony Adverse
On Tuesday, March 3, 2020 at 4:16:11 AM UTC+11, Michael J. Mahon wrote:
> Anthony Adverse <the.ertceps@gmail.com> wrote:
>> Hmm I've been poking around with the GS->SCART cable, and trying to get
>> some photos thereof. At the moment everything comes out looking like its
>> written in neon and all glowing. Even after playing with brightness and
>> contrast. Anyone got any tips for taking photos of a lit source?
>>
>> Interstingly enough, the VidHD on a different LCD screen actually behaves
>> a bit better, not quite as glow in dark, but does suffer from the same to some degree.
>>
>> A
>>
>
> I presume you’re using a digital camera/phone to capture the images.
>
> It’s very common for digital captures to have excessive contrast and
> saturation—think of it as digital Kodachrome—because people usually prefer
> it to a more realistic depiction. This exaggeration becomes particularly
> obvious in photos of light sources, as you’ve found.
>
> Cameras often have adjustments to modify these “enhancements”, or they can
> be corrected by post-processing the images.
>
> However, a simple way to reduce the effects is to reduce the exposure.
> Light metering frequently underestimates the brightness of displays that
> source light.
>
> Check the exposure controls of your camera/phone and reduce the suggested
> exposure by a factor of two to four (one or two f stops). This should
> improve results, but post-processing may still be needed to make the
> captured image look like the display.
>
> --
> -michael - NadaNet 3.1 and AppleCrate II: http://michaeljmahon.com
Hmm the camera in question is a rather long in the tooth Olympus nothing special job. I'll have to see what I can do with exposure times. As it stands it tends to over expose so I have to post process anyways, but even then the displays have remained like glowing neon unless I crank the contrast up so far the colours themselves start to get distorted.
Thanks for your advice, will give it a go.
A
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