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Is there an easy way to stop this light scatter ghosting in all my photos & videos of engine valves?



 
 
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  #1  
Old December 14th 17, 05:48 PM posted to rec.photo.digital,rec.video.desktop
Arthur Wood
external usenet poster
 
Posts: 6
Default Is there an easy way to stop this light scatter ghosting in all my photos & videos of engine valves?

Is there an easy way to stop this light scatter sparkling in all my photos
& videos of engine valves. What specifically is causing all the ghosting
and sparkling?

I'm using just a shop light and a mobile phone to video (without flash) and
photograph (with and without flash) an engine problem where all the photos
have this shiny glare no matter what angle I put the light or phone with
respect to the valves - and whether or not I use flash.

https://www.turboimagehost.com/p/368..._bay1.jpg.html
https://www.turboimagehost.com/p/368..._bay2.jpg.html
https://www.turboimagehost.com/p/368..._bay3.jpg.html
https://www.turboimagehost.com/p/368..._bay4.jpg.html
https://www.turboimagehost.com/p/368..._bay5.jpg.html
https://www.turboimagehost.com/p/368..._bay6.jpg.html
https://www.turboimagehost.com/p/368..._bay7.jpg.html
https://www.turboimagehost.com/p/368..._bay8.jpg.html
https://www.turboimagehost.com/p/368..._bay9.jpg.html
https://www.turboimagehost.com/p/368...bay10.jpg.html

The original thread is here, where it also contains video with the same
problem, but the photos above show the problem enough.
http://www.bimmerfest.com/forums/showthread.php?t=1181089

Is there an easy way to stop this light scatter ghosting in all my photos &
videos of engine valves.
  #2  
Old December 14th 17, 05:54 PM posted to rec.photo.digital,rec.video.desktop
Paul[_10_]
external usenet poster
 
Posts: 64
Default Is there an easy way to stop this light scatter ghosting in allmy photos & videos of engine valves?

Arthur Wood wrote:
Is there an easy way to stop this light scatter sparkling in all my photos
& videos of engine valves. What specifically is causing all the ghosting
and sparkling?

I'm using just a shop light and a mobile phone to video (without flash) and
photograph (with and without flash) an engine problem where all the photos
have this shiny glare no matter what angle I put the light or phone with
respect to the valves - and whether or not I use flash.

https://www.turboimagehost.com/p/368..._bay1.jpg.html
https://www.turboimagehost.com/p/368..._bay2.jpg.html
https://www.turboimagehost.com/p/368..._bay3.jpg.html
https://www.turboimagehost.com/p/368..._bay4.jpg.html
https://www.turboimagehost.com/p/368..._bay5.jpg.html
https://www.turboimagehost.com/p/368..._bay6.jpg.html
https://www.turboimagehost.com/p/368..._bay7.jpg.html
https://www.turboimagehost.com/p/368..._bay8.jpg.html
https://www.turboimagehost.com/p/368..._bay9.jpg.html
https://www.turboimagehost.com/p/368...bay10.jpg.html

The original thread is here, where it also contains video with the same
problem, but the photos above show the problem enough.
http://www.bimmerfest.com/forums/showthread.php?t=1181089

Is there an easy way to stop this light scatter ghosting in all my photos &
videos of engine valves.


https://www.diyphotography.net/getti...larized-light/

Paul
  #3  
Old December 14th 17, 06:08 PM posted to rec.photo.digital, rec.video.desktop
Savageduck[_3_]
external usenet poster
 
Posts: 16,487
Default Is there an easy way to stop this light scatter ghosting in all my photos & videos of engine valves?

On Dec 14, 2017, Arthur Wood wrote
(in article ):

Is there an easy way to stop this light scatter sparkling in all my photos
& videos of engine valves. What specifically is causing all the ghosting
and sparkling?

I'm using just a shop light and a mobile phone to video (without flash) and
photograph (with and without flash) an engine problem where all the photos
have this shiny glare no matter what angle I put the light or phone with
respect to the valves - and whether or not I use flash.

https://www.turboimagehost.com/p/368..._bay1.jpg.html
https://www.turboimagehost.com/p/368..._bay2.jpg.html
https://www.turboimagehost.com/p/368..._bay3.jpg.html
https://www.turboimagehost.com/p/368..._bay4.jpg.html
https://www.turboimagehost.com/p/368..._bay5.jpg.html
https://www.turboimagehost.com/p/368..._bay6.jpg.html
https://www.turboimagehost.com/p/368..._bay7.jpg.html
https://www.turboimagehost.com/p/368..._bay8.jpg.html
https://www.turboimagehost.com/p/368..._bay9.jpg.html
https://www.turboimagehost.com/p/368...bay10.jpg.html

The original thread is here, where it also contains video with the same
problem, but the photos above show the problem enough.
http://www.bimmerfest.com/forums/showthread.php?t=1181089

Is there an easy way to stop this light scatter ghosting in all my photos &
videos of engine valves.


It looks to me as though your problem lies with the shop light. You will
never solve this problem photographically by using such undiffused harsh
lighting, but that is easily solved. You could go the expensive route by
using specialized photographic diffusers, or reflectors, or you can adapt
your shop light by placing a diffuser sheet between the light and your
subject. A search on Amazon for light diffuser, or diffuser sheet will expand
those options.

Here is more for you to read:
https://en.wikipedia.org/wiki/Diffuser_(optics)
https://diffuserspecialist.com/fluor...products/flat-
sheet-light-diffuser-panels/
http://www.instructables.com/id/10-Minute-Light-Diffuser/
https://www.inventables.com/technologies/light-diffuser-film-rolls

--

Regards,
Savageduck

  #4  
Old December 14th 17, 06:13 PM posted to rec.photo.digital, rec.video.desktop
Savageduck[_3_]
external usenet poster
 
Posts: 16,487
Default Is there an easy way to stop this light scatter ghosting in all my photos & videos of engine valves?

On Dec 14, 2017, Paul wrote
(in article ):

Arthur Wood wrote:
Is there an easy way to stop this light scatter sparkling in all my photos
& videos of engine valves. What specifically is causing all the ghosting
and sparkling?

I'm using just a shop light and a mobile phone to video (without flash) and
photograph (with and without flash) an engine problem where all the photos
have this shiny glare no matter what angle I put the light or phone with
respect to the valves - and whether or not I use flash.

https://www.turboimagehost.com/p/368..._bay1.jpg.html
https://www.turboimagehost.com/p/368..._bay2.jpg.html
https://www.turboimagehost.com/p/368..._bay3.jpg.html
https://www.turboimagehost.com/p/368..._bay4.jpg.html
https://www.turboimagehost.com/p/368..._bay5.jpg.html
https://www.turboimagehost.com/p/368..._bay6.jpg.html
https://www.turboimagehost.com/p/368..._bay7.jpg.html
https://www.turboimagehost.com/p/368..._bay8.jpg.html
https://www.turboimagehost.com/p/368..._bay9.jpg.html
https://www.turboimagehost.com/p/368...bay10.jpg.html

The original thread is here, where it also contains video with the same
problem, but the photos above show the problem enough.
http://www.bimmerfest.com/forums/showthread.php?t=1181089

Is there an easy way to stop this light scatter ghosting in all my photos &
videos of engine valves.


https://www.diyphotography.net/getti...larized-light/

Paul


Nope! This isn’t a problem that polarizer filters will fix. This is a case
where a light diffuser, or reflector is needed.

--

Regards,
Savageduck

  #5  
Old December 14th 17, 06:26 PM posted to rec.photo.digital,rec.video.desktop
nospam
external usenet poster
 
Posts: 24,165
Default Is there an easy way to stop this light scatter ghosting in all my photos & videos of engine valves?

In article .com,
Savageduck wrote:

Is there an easy way to stop this light scatter ghosting in all my photos &
videos of engine valves.


It looks to me as though your problem lies with the shop light.


be advised who the poster actually is.
  #6  
Old December 14th 17, 06:49 PM posted to rec.photo.digital, rec.video.desktop
Savageduck[_3_]
external usenet poster
 
Posts: 16,487
Default Is there an easy way to stop this light scatter ghosting in all my photos & videos of engine valves?

On Dec 14, 2017, nospam wrote
(in ) :

In iganews.com,
Savageduck wrote:

Is there an easy way to stop this light scatter ghosting in all my photos &
videos of engine valves.


It looks to me as though your problem lies with the shop light.


be advised who the poster actually is.


I thought that it might be our pal from the hills above San Jose, but the
question seemed to be benign enough to respond.

This did not appear to be an OS troll.

--

Regards,
Savageduck

  #7  
Old December 14th 17, 06:59 PM posted to rec.photo.digital,rec.video.desktop
nospam
external usenet poster
 
Posts: 24,165
Default Is there an easy way to stop this light scatter ghosting in all my photos & videos of engine valves?

In article .com,
Savageduck wrote:

Is there an easy way to stop this light scatter ghosting in all my
photos & videos of engine valves.

It looks to me as though your problem lies with the shop light.


be advised who the poster actually is.


I thought that it might be our pal from the hills above San Jose, but the
question seemed to be benign enough to respond.


the first part is correct, the second is debatable. any attempt to
teach him lighting technique will turn into the usual idiocy.

This did not appear to be an OS troll.


but yet a troll nonetheless.
  #8  
Old December 14th 17, 11:24 PM posted to rec.photo.digital,rec.video.desktop
Eric Stevens
external usenet poster
 
Posts: 13,611
Default Is there an easy way to stop this light scatter ghosting in all my photos & videos of engine valves?

On Thu, 14 Dec 2017 16:48:04 -0000 (UTC), Arthur Wood
wrote:

Is there an easy way to stop this light scatter sparkling in all my photos
& videos of engine valves. What specifically is causing all the ghosting
and sparkling?

I'm using just a shop light and a mobile phone to video (without flash) and
photograph (with and without flash) an engine problem where all the photos
have this shiny glare no matter what angle I put the light or phone with
respect to the valves - and whether or not I use flash.

https://www.turboimagehost.com/p/368..._bay1.jpg.html
https://www.turboimagehost.com/p/368..._bay2.jpg.html
https://www.turboimagehost.com/p/368..._bay3.jpg.html
https://www.turboimagehost.com/p/368..._bay4.jpg.html
https://www.turboimagehost.com/p/368..._bay5.jpg.html
https://www.turboimagehost.com/p/368..._bay6.jpg.html
https://www.turboimagehost.com/p/368..._bay7.jpg.html
https://www.turboimagehost.com/p/368..._bay8.jpg.html
https://www.turboimagehost.com/p/368..._bay9.jpg.html
https://www.turboimagehost.com/p/368...bay10.jpg.html

The original thread is here, where it also contains video with the same
problem, but the photos above show the problem enough.
http://www.bimmerfest.com/forums/showthread.php?t=1181089

Is there an easy way to stop this light scatter ghosting in all my photos &
videos of engine valves.


I think you mean cams rather than valves.

It looks to me as though the highlighted parts give rise to a strak of
light at an angle to the frame of the image. In some of the shots
(e.g. bay 10) streaks can be seen emenating from highlights other than
the cams. I suspect the problem may be due to a smear on the camera
lens. I suggest you try it with another camera.
--

Regards,

Eric Stevens
  #9  
Old December 15th 17, 04:49 AM posted to rec.photo.digital,rec.video.desktop
PeterN[_7_]
external usenet poster
 
Posts: 1,161
Default Is there an easy way to stop this light scatter ghosting in allmy photos & videos of engine valves?

On 12/14/2017 12:49 PM, Savageduck wrote:
On Dec 14, 2017, nospam wrote (in
) :

In iganews.com,
Savageduck wrote:

Is there an easy way to stop this light scatter ghosting in all
my photos & videos of engine valves.

It looks to me as though your problem lies with the shop light.


be advised who the poster actually is.


I thought that it might be our pal from the hills above San Jose, but
the question seemed to be benign enough to respond.

This did not appear to be an OS troll.



Regardless of whether the poster is a troll, I see it as a legitimate
question. I think that your answer is a good response to a real problem.
Some here may have encountered it and you provided an answer that would
help them.
--
PeterN
  #10  
Old December 15th 17, 07:18 AM posted to rec.photo.digital,rec.video.desktop
Arthur Wood
external usenet poster
 
Posts: 6
Default Is there an easy way to stop this light scatter ghosting in all my photos & videos of engine valves?

PeterN wrote:

I think that your answer is a good response to a real problem.
Some here may have encountered it and you provided an answer that would
help them.


I see the solution is a "diffuser" but what's the "problem".
What I mean by that is why does the light look like it's raining?

For whatever reason, it's like "sleet" at a 45 degree angle.
Where is all that "sleet" of light coming from?

And why always a 45-degree angle?
I assumed that some "physics" principle is being invoked.

No matter how I held the camera, I still got a 45-degree "sleet" of light.

Take this one example from far away:
https://www.turboimagehost.com/p/368..._bay4.jpg.html

Compared with this at 90 degrees:
https://www.turboimagehost.com/p/368..._bay6.jpg.html

Compared with this at a closeup:
https://www.turboimagehost.com/p/368...bay10.jpg.html

All have this "sleet" of light at the same angle.

Why the 45-degree "sleet" angle in /all/ the photos?

I realize the /solution/ is a diffuser but what's the physics problem?
Is there a physics principle that causes the always 45 degree sleet?
 




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