Rid of Reflection on Clear Plexiglass?

Started Dec 23, 2002 | Discussions
Debwins Regular Member • Posts: 217
Rid of Reflection on Clear Plexiglass?

I am using a Table Top Studio to photograph art glass (please see earlier thread). You can see an example of the table at http://www.sell-it-on-the-net.com/online_store/tt_studio_kits.htm

There are two pieces of plexiglass used in this table the one on the bottom is white and the one about four inches above it is clear. I love the table it really does a remarkable job. However I get a mirror image of the object I'm shooting reflected from surface of the clear plexiglass that I place the object on. (Just like the reflection in a lake of the mountains in the background.)

Do you have any ideas about how to eliminate the reflection?

Thank you,
Nann

TonyK_in_Texas Veteran Member • Posts: 3,680
Re: Rid of Reflection on Clear Plexiglass?

What is needed is a way to defuse the light. I would say using umbrellas or softboxes will help.

I believe an umbrella will reduce the reflections more than softboxes as they are pointed away from the reflective surface, but I could be wrong.

What I do know is do not use direct lighting.

Take care,

Nann wrote:

I am using a Table Top Studio to photograph art glass (please see
earlier thread). You can see an example of the table at
http://www.sell-it-on-the-net.com/online_store/tt_studio_kits.htm

There are two pieces of plexiglass used in this table the one on
the bottom is white and the one about four inches above it is
clear. I love the table it really does a remarkable job. However
I get a mirror image of the object I'm shooting reflected from
surface of the clear plexiglass that I place the object on. (Just
like the reflection in a lake of the mountains in the background.)

Do you have any ideas about how to eliminate the reflection?

Thank you,
Nann

-- hide signature --

TonyK

Merle Sebzda Regular Member • Posts: 140
Re: Rid of Reflection on Clear Plexiglass?

Nann wrote:

I am using a Table Top Studio to photograph art glass (please see
earlier thread). You can see an example of the table at
http://www.sell-it-on-the-net.com/online_store/tt_studio_kits.htm

There are two pieces of plexiglass used in this table the one on
the bottom is white and the one about four inches above it is
clear. I love the table it really does a remarkable job. However
I get a mirror image of the object I'm shooting reflected from
surface of the clear plexiglass that I place the object on. (Just
like the reflection in a lake of the mountains in the background.)

Do you have any ideas about how to eliminate the reflection?

Thank you,
Nann

Roliaz wrote:
You might want to try a "polarizing filter".

Regards

Ranjan Senior Member • Posts: 1,253
Re: Rid of Reflection on Clear Plexiglass?

Nann wrote:

I am using a Table Top Studio to photograph art glass (please see
earlier thread). You can see an example of the table at
http://www.sell-it-on-the-net.com/online_store/tt_studio_kits.htm

There are two pieces of plexiglass used in this table the one on
the bottom is white and the one about four inches above it is
clear. I love the table it really does a remarkable job. However
I get a mirror image of the object I'm shooting reflected from
surface of the clear plexiglass that I place the object on. (Just
like the reflection in a lake of the mountains in the background.)

Do you have any ideas about how to eliminate the reflection?

Thank you,
Nann

Reducing the distance between plain sheet & white will reduce the mirror image. Another thing you can do is to have half stop more light from the bottom that your main light.
--
Ranjan
Professional photographer.
http://www.photosig.com/userphotos.php?id=11993

OP Debwins Regular Member • Posts: 217
Re: Rid of Reflection on Clear Plexiglass?

Thank you for these suggestions. I will try each one of them today.
Nann

Nann wrote:

I am using a Table Top Studio to photograph art glass (please see
earlier thread). You can see an example of the table at
http://www.sell-it-on-the-net.com/online_store/tt_studio_kits.htm

There are two pieces of plexiglass used in this table the one on
the bottom is white and the one about four inches above it is
clear. I love the table it really does a remarkable job. However
I get a mirror image of the object I'm shooting reflected from
surface of the clear plexiglass that I place the object on. (Just
like the reflection in a lake of the mountains in the background.)

Do you have any ideas about how to eliminate the reflection?

Thank you,
Nann

Elis Vener Regular Member • Posts: 180
Re: Rid of Reflection on Clear Plexiglass?

Nann wrote:

Thank you for these suggestions. I will try each one of them today.
Nann

Here is a better one: switch to plexi with a "frosted' surface.

Rinus Borgsteede Veteran Member • Posts: 3,207
Two methods
  1. 1 More light from the bottom will kill a lot of the reflection but with lighter objects, that may also cause flare.

  2. 2 Polarizers take away reflections of that lake you are talking about and also off the plexiglass table. As the polarizer works best at about 35° to any shining surface it may be best to see which lens will give you that angle. I shoot typically onto a glass shelf with a 60 Micro (90mm equivalent 35mm) and as i shoot slightly from above, I can rotate the polarizer and really kill the reflection completely.

Observe your object carefully as well as you can also change the look of that with an undesirable outcome.

As I shoot mostly with a white backdrop, I prefer to remove the remaining traces of the reflection with the dodging tool in Photoshop. For darker shadowless backgrounds I just do the polarizer trick.
Rinus of Calgary

OP Debwins Regular Member • Posts: 217
Re: Two methods

I was wondering about the polarizer. I'm going to give that a shot (no pun intended).

I am also going to try shooting light up from the bottom as well. I have some crystal that I believe will show better being lit this way.

The new effect that I am working on acheiving is to use gels to create a colored backdrop lighting and the object appearing to be suspended in space.

I'm not too familar with photoshop yet, but I intend to use it to "polish" off my photos. However, I want to maximize the quality of my photos out of the camera, and minimize any required work in photoshop. I just figure life will be easier that way. Thanks for your ideas.
Nann

Rinus wrote:

  1. 1 More light from the bottom will kill a lot of the reflection but

with lighter objects, that may also cause flare.

  1. 2 Polarizers take away reflections of that lake you are talking

about and also off the plexiglass table. As the polarizer works
best at about 35° to any shining surface it may be best to see
which lens will give you that angle. I shoot typically onto a glass
shelf with a 60 Micro (90mm equivalent 35mm) and as i shoot
slightly from above, I can rotate the polarizer and really kill the
reflection completely.
Observe your object carefully as well as you can also change the
look of that with an undesirable outcome.
As I shoot mostly with a white backdrop, I prefer to remove the
remaining traces of the reflection with the dodging tool in
Photoshop. For darker shadowless backgrounds I just do the
polarizer trick.
Rinus of Calgary

OP Debwins Regular Member • Posts: 217
Re: Rid of Reflection on Clear Plexiglass?

Yes, I'm going to try that. However the ultimate effect I'm looking for is that my object will appear to be floating in air. I may need the clear plexi over white plexi to achieve that.

That said, I'm going to take the clear plexi off and try just setting my object on the white plexi and see what I get. I'll post on my results.
Nann

Ellis Vener Photography wrote:

Nann wrote:

Thank you for these suggestions. I will try each one of them today.
Nann

Here is a better one: switch to plexi with a "frosted' surface.

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