Glaucoma Disease » Glaucoma » Does such a filter exist?

Does such a filter exist?

Question:

A repaired detached retina has much the same effect.  We could whack him on the back of the head (3 Stooges Style).  :-) Mac

– Hide quoted text — Show quoted text –   Sounds like glaucoma to me. — Digital Photo restoration in Chapel Hill N.C. Before you buy.

Response:

You know when you look at a bright light across a street at night and the eye tends to break up the brightness.

No Like a combination of a starburst with hundreds of lines coming out and yet the lines not really lines and are sort of fragmented. It’s like the light has been smashed into a thousand pieces and distributed radially around the light to dilute its brightness. Is there any sort of special effects filter that can do this? And if not, how could I make one?

Sounds like you need to lay of the old falling over water a little before you walk/stagger home from the pub to me

Response:

You provided a funny answer but it sure sounds like some of the first very unfunny symptoms of cataracts.

– Hide quoted text — Show quoted text – You know when you look at a bright light across a street at night and the eye tends to break up the brightness. No Like a combination of a starburst with hundreds of lines coming out and yet the lines not really lines and are sort of fragmented. It’s like the light has been smashed into a thousand pieces and distributed radially around the light to dilute its brightness. Is there any sort of special effects filter that can do this? And if not, how could I make one? Sounds like you need to lay of the old falling over water a little before you walk/stagger home from the pub to me

Response:

You can get a similar effect by closing your aperture all the way down. Unfortunately, this will make your speed extra long. A lot of photographers use this technique when the sun is in the picture. Try a star burst filler for night photography.

– Hide quoted text — Show quoted text – You know when you look at a bright light across a street at night and the eye tends to break up the brightness. Like a combination of a starburst with hundreds of lines coming out and yet the lines not really lines and are sort of fragmented. It’s like the light has been smashed into a thousand pieces and distributed radially around the light to dilute its brightness. Is there any sort of special effects filter that can do this? And if not, how could I make one? Roland

Response:

- Hide quoted text — Show quoted text – Two good candidates are "star filter" and "radial diffraction grating". The star filters cause every light source or specular reflection to emit a set of "spokes" light a cartoonist’s depiction of a star.  The filters are available in variations of strength and of numbers of spokes per light source.   Any fine mesh (window screening, nylon stocking) will cause this same effect, although the denser the mesh, the more pronounced the accompanying soft-focus effect will be. As you rotate the filter, the spokes will also rotate. Diffraction gratings cause a rainbow effect across specular light sources.  A combination star-filter/diffraction grating will cause, of course, rainbow-spectrum star bursts. When the combo filter is applied to a quiet scene with a single light source such as the setting sun, the effect may be pleasing.  Applied to a scene such as city lights at night, the effect might be almost overwhelming.  Applied to an already overwhelming scene such as the final burst of fireworks at a major display, the effect might cause insanity.  Only to be used by licensed photographers on the advice of a physician. BTW Just wait until you discover multiple prism filters!  Spiratone, here we come! You know when you look at a bright light across a street at night and the eye tends to break up the brightness. Like a combination of a starburst with hundreds of lines coming out and yet the lines not really lines and are sort of fragmented. It’s like the light has been smashed into a thousand pieces and distributed radially around the light to dilute its brightness. Is there any sort of special effects filter that can do this? And if not, how could I make one? Roland          Perry White What in thundering tarnation?!?!?   (and don’t call me "Chief")

I have a starburst filter and the effect I am looking for goes beyond that. But starburst filters apply their effect only to bright light sources which is what I need. For normal scenes I want the filter to have no effect at all. Roland

Response:

I’ve always had vision like that and I’m sure your eyes are the same. Our brain switch off these effects so we no longer notice them. Like trailing images when something moves. You can relearn to see these with a bit of effort. I invite you to look at a street lamp from across the street at night and study the area around the light. You will find that the light doesn’t just stop at the boundary of the object but goes beyond.

Eyes may have all kinds of defects, large or small.  So quite a few people will see something extra when looking at a small very bright light in a dark place. But trailing images when something move???  That’s something I only see on old green computer monitors – and it is a monitor problem. Helge Hafting

Response:

because they don’t allow them sharp pencils in the asylum in message Our brain switch off Roland

Well, we know yours does Roland, permanently !!

Response:

I’ve always had vision like that . You will find that the light doesn’t just stop at the boundary of the object but goes beyond.

Like he said earlier ….. Just lay off the booze !!

Response:

I’m probably gonna catch it for this one…but when I was in high school I was somewhat of a pothead.  on a cold night after smokin some….uhm..stuff….my eyes would be dry and if I looked at a streetlight I ould see what I think your trying to explain.  kind of like an ordered..patterned haze around the light…it always happened when my eyes were dry, and it was a humid type cold….I dunno how to reproduce it….but i want to let you know your not a kook! Andy P

– Hide quoted text — Show quoted text – There is certainly a starburst element in it. I have a starburst filter but I need to break up the light some more so that the bursts are more irregular. I would guess that the human eye has scratches on the surface due to the abrasion from the eyelids and this is what is giving this effect. I am looking for some way to produve the same effect with a filter. Roland You can get a similar effect by closing your aperture all the way down. Unfortunately, this will make your speed extra long. A lot of photographers use this technique when the sun is in the picture. Try a star burst filler for night photography. You know when you look at a bright light across a street at night and the eye tends to break up the brightness. Like a combination of a starburst with hundreds of lines coming out and yet the lines not really lines and are sort of fragmented. It’s like the light has been smashed into a thousand pieces and distributed radially around the light to dilute its brightness. Is there any sort of special effects filter that can do this? And if not, how could I make one? Roland

Response:

I’ve always had vision like that and I’m sure your eyes are the same. Our brain switch off these effects so we no longer notice them. Like trailing images when something moves. You can relearn to see these with a bit of effort. I invite you to look at a street lamp from across the street at night and study the area around the light. You will find that the light doesn’t just stop at the boundary of the object but goes beyond. Roland – Hide quoted text — Show quoted text – You provided a funny answer but it sure sounds like some of the first very unfunny symptoms of cataracts. You know when you look at a bright light across a street at night and the eye tends to break up the brightness. No Like a combination of a starburst with hundreds of lines coming out and yet the lines not really lines and are sort of fragmented. It’s like the light has been smashed into a thousand pieces and distributed radially around the light to dilute its brightness. Is there any sort of special effects filter that can do this? And if not, how could I make one? Sounds like you need to lay of the old falling over water a little before you walk/stagger home from the pub to me

Response:

There is certainly a starburst element in it. I have a starburst filter but I need to break up the light some more so that the bursts are more irregular. I would guess that the human eye has scratches on the surface due to the abrasion from the eyelids and this is what is giving this effect. I am looking for some way to produve the same effect with a filter. Roland – Hide quoted text — Show quoted text – You can get a similar effect by closing your aperture all the way down. Unfortunately, this will make your speed extra long. A lot of photographers use this technique when the sun is in the picture. Try a star burst filler for night photography. You know when you look at a bright light across a street at night and the eye tends to break up the brightness. Like a combination of a starburst with hundreds of lines coming out and yet the lines not really lines and are sort of fragmented. It’s like the light has been smashed into a thousand pieces and distributed radially around the light to dilute its brightness. Is there any sort of special effects filter that can do this? And if not, how could I make one? Roland

Response:

Two good candidates are "star filter" and "radial diffraction grating".   The star filters cause every light source or specular reflection to emit a set of "spokes" light a cartoonist’s depiction of a star.  The filters are available in variations of strength and of numbers of spokes per light source.   Any fine mesh (window screening, nylon stocking) will cause this same effect, although the denser the mesh, the more pronounced the accompanying soft-focus effect will be.   As you rotate the filter, the spokes will also rotate. Diffraction gratings cause a rainbow effect across specular light sources.  A combination star-filter/diffraction grating will cause, of course, rainbow-spectrum star bursts.   When the combo filter is applied to a quiet scene with a single light source such as the setting sun, the effect may be pleasing.  Applied to a scene such as city lights at night, the effect might be almost overwhelming.  Applied to an already overwhelming scene such as the final burst of fireworks at a major display, the effect might cause insanity.  Only to be used by licensed photographers on the advice of a physician.   BTW Just wait until you discover multiple prism filters!  Spiratone, here we come!   You know when you look at a bright light across a street at night and the eye tends to break up the brightness. Like a combination of a starburst with hundreds of lines coming out and yet the lines not really lines and are sort of fragmented. It’s like the light has been smashed into a thousand pieces and distributed radially around the light to dilute its brightness. Is there any sort of special effects filter that can do this? And if not, how could I make one? Roland

         Perry White What in thundering tarnation?!?!?   (and don’t call me "Chief")

Response:

You know when you look at a bright light across a street at night and the eye tends to break up the brightness. Like a combination of a starburst with hundreds of lines coming out and yet the lines not really lines and are sort of fragmented. It’s like the light has been smashed into a thousand pieces and distributed radially around the light to dilute its brightness. Is there any sort of special effects filter that can do this? And if not, how could I make one? Roland

Response:

  Sounds like glaucoma to me. — Digital Photo restoration in Chapel Hill N.C. Before you buy.

Response:

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