Black reflectors
Oct 14, 2014 04:06:42 #
a gloss black would reflect and a matt black would reflect less (we have shiny black cars around don't we). I can see a use to reduce the light reflected from a bright surface.
Never used a black reflector that way myself or thought about doing so , so its all good :)
Never used a black reflector that way myself or thought about doing so , so its all good :)
Oct 14, 2014 04:39:58 #
Pablo8
Loc: Nottingham UK.
redhogbill wrote:
isn't that a pain killer!!!???
:D :shock: :thumbup:
:D :shock: :thumbup:
***********************************************
Oxybutynin Hydrochloride... Used to control bladder... And NO... I'm not taking the P......
Oct 14, 2014 08:06:58 #
[quote=Pablo8]***********************************************
Oxybutynin Hydrochloride... Used to control bladder... And NO... I'm not taking the P......[/quote
no intention to offend you!! it was just a play on words,{oxymoron/oxycotin!} and not an accusation.
how would I have even known what you are taking.
when I attach a smiley face it usually denotes humor!
also thanks for the information on the Oxybutynin Hydrochloride.. now when I am laughing so hard at some of the comments on this web site & I am p!ssing my self, I will know what to take :D :D :D :D
Oxybutynin Hydrochloride... Used to control bladder... And NO... I'm not taking the P......[/quote
no intention to offend you!! it was just a play on words,{oxymoron/oxycotin!} and not an accusation.
how would I have even known what you are taking.
when I attach a smiley face it usually denotes humor!
also thanks for the information on the Oxybutynin Hydrochloride.. now when I am laughing so hard at some of the comments on this web site & I am p!ssing my self, I will know what to take :D :D :D :D
Oct 14, 2014 10:12:42 #
Not terribly often, but I do use them. Always called it the "light subtractor" I wouldn't call it a gobo or flag in the use which was originally posted. I do use flags, never owned a real gobo, but have made a few to mimic light coming through a window with muttons, or have hung a vertical blind in front to give that impression... What I use for the light subtractor is flat black posterboard held close to the shadow side of the face when I don't get the moody light that I'm going for. Like I said, I don't do it often, but when it is needed, it works very well.
Oct 14, 2014 20:29:31 #
Actually black reflects. If it did not it would be invisible. The 'quality' of the reflection depends on the surface. A glossy black will reflect a light, attenuated but it will be reflected. A black matte surface reflects the light to a lesser degree**. When we use a color light on a black background it is reflected (not bounced) otherwise, what will be the point if black absorbed all? Think about it.
To create a true 'black' one needs something similar to a honeycomb that will capture the light and prevent any reflection or bounce back*. Think about it again...
As to the 'gobo' it is nothing more than a shade creator. Using that is sometime easier than finding a shade in the middle of a desert... In a cityscape where light can bounce off anything it is good idea to have one to suppress incident light.
Going back to the 'shade' a neutral diffuser is a better solution, in my opinion. It preserves some of the luminosity and quality of light. That light quality deteriorates in the shade...
Pablo8 calls it 'light absorber' and I think it is as close as can come to a description. A black reflector attenuates so 'adsorbs'...
Gold and sliver reflect and modify the light. White reflects and diffuses, black 'absorbs/attenuates' the reflection.
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* I think there is a company that makes something similar to create a true black reference point...
** If I recall correctly a black model posed for a photographer using black reflector and the result is one of the best pictures ever taken of her. I do not recall her name...
To create a true 'black' one needs something similar to a honeycomb that will capture the light and prevent any reflection or bounce back*. Think about it again...
As to the 'gobo' it is nothing more than a shade creator. Using that is sometime easier than finding a shade in the middle of a desert... In a cityscape where light can bounce off anything it is good idea to have one to suppress incident light.
Going back to the 'shade' a neutral diffuser is a better solution, in my opinion. It preserves some of the luminosity and quality of light. That light quality deteriorates in the shade...
Pablo8 calls it 'light absorber' and I think it is as close as can come to a description. A black reflector attenuates so 'adsorbs'...
Gold and sliver reflect and modify the light. White reflects and diffuses, black 'absorbs/attenuates' the reflection.
-----
* I think there is a company that makes something similar to create a true black reference point...
** If I recall correctly a black model posed for a photographer using black reflector and the result is one of the best pictures ever taken of her. I do not recall her name...
Oct 14, 2014 23:14:17 #
jboy24
Loc: Downey Ca,
Well of course if one has a high gloss shiny surface there will be some reflection..now the opposite of this would be a dull flat black matte surface, there will be no reflection how can it be unless there is a high powered BEAM of light on it and even then if there is a reflection it would be very slim.. But for ambient light purposes and using it to direct light, I'm not buying it as a reflector..
Oct 14, 2014 23:23:36 #
You see it, there is a reflection. Simple as that.
A black hole, as described (box or honeycomb) trap the light. There you see nothing, even if you use a strong light on it.
You can do a simple test.
Paint something black, matte. Pierce a hole in it. That a picture.
The hole is black, the surface is really not.
A black hole, as described (box or honeycomb) trap the light. There you see nothing, even if you use a strong light on it.
You can do a simple test.
Paint something black, matte. Pierce a hole in it. That a picture.
The hole is black, the surface is really not.
Oct 15, 2014 07:43:45 #
Rongnongno wrote:
You see it, there is a reflection. Simple as that.
A black hole, as described (box or honeycomb) trap the light. There you see nothing, even if you use a strong light on it.
You can do a simple test.
Paint something black, matte. Pierce a hole in it. That a picture.
The hole is black, the surface is really not.
A black hole, as described (box or honeycomb) trap the light. There you see nothing, even if you use a strong light on it.
You can do a simple test.
Paint something black, matte. Pierce a hole in it. That a picture.
The hole is black, the surface is really not.
Amazing that your rather simple and straight forward question caused so much confusion. :roll:
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