Lens Diaries Go Now
Glamour, Beauty, Nude, Models, Photographers

*    |  Register  


 
Go Back   Garage Glamour™ > Garage Glamour™ Main Forums > Tech Talk Forum
 

Tech Talk Forum Photography & Technical Related Only!

Reply
 
LinkBack Thread Tools Display Modes
Ring Light Red Eye...
Old 03-29-2005, 12:25 PM   #1 (permalink)
Lifetime Photographer
 
Join Date: Mar 2004
Member GG#: 38485
Location: Tyler
Posts: 302
Comments: 0

photoTexas is offline IP: 66.76.233.130
 
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote

Why does my Ring Light give me red eye every time and can I prevent it?
  View Public Profile Send a private message to photoTexas Find More Posts by photoTexas
 
Re: Ring Light Red Eye...
Old 03-29-2005, 02:56 PM   #2 (permalink)
Lifetime Photographer
 
Join Date: Dec 2004
Member GG#: 41014
Location: Atlanta
Posts: 465
Comments: 0

RoshGlamour is offline IP: 24.98.68.188
 
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote

It can happen consistently if the room lighting is low, making the pupils of your subjects widen. Here's a couple of things to try:

1. Increase the light in the room so your subject's pupils aren't so wide.

2. Hold the ring flash off camera, but that's probably not something you want, right?

3. Have the subject look slightly off center from the lens.

4. I don't like this one, but you could use the red-eye reduction pre-flashing.

Someone else might have better suggestions.

Greg
  View Public Profile Send a private message to RoshGlamour Visit RoshGlamour's homepage! Find More Posts by RoshGlamour
 
Re: Ring Light Red Eye...
Old 03-29-2005, 06:03 PM   #3 (permalink)
Free Member
 
Join Date: Jan 2004
Member GG#: 37977
Posts: 102
Comments: 0

Sean_Armenta is offline IP: 68.234.188.145
 
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote

casey,

the ringlight shares the same axis as the lens, and the light reflects off the retina's blood vessels, which is why you would get red eye. since the pupil regulates the amount of light that enters into the eye, the amount of red is proportional to the size of the pupil at the time of exposure. since ringflashes don't have modeling lights that would possibly shrink the pupil down, you have to use an additional light for that purpose. i would use a 250W bulb -- it won't factor into your exposure if you're shooting at max sync speed.



  View Public Profile Send a private message to Sean_Armenta Find More Posts by Sean_Armenta
 
Re: Ring Light Red Eye...
Old 03-29-2005, 06:05 PM   #4 (permalink)
Lifetime Photographer
 
Join Date: Mar 2004
Member GG#: 38485
Location: Tyler
Posts: 302
Comments: 0

photoTexas is offline IP: 66.76.233.130
 
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote

thanks.... I will try again...
  View Public Profile Send a private message to photoTexas Find More Posts by photoTexas
 
Re: Ring Light Red Eye...
Old 03-29-2005, 07:00 PM   #5 (permalink)
Lifetime Photographer
 
Join Date: Jun 2003
Member GG#: 35977
Posts: 609
Comments: 0

Andy_Pearlman is offline IP: 66.245.238.47
 
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote

I use a 500w hot light work light from home depot, mounted on a C stand, and positioned right over the lense. It not not only gives me some approximation of your actual light, and closed the pupils down on the eyes. If you keep the f-stop down and the shutter speed fast, you'll never see it, BUT..... you can slow down the shutter and get a little crossover blend. With digital its easy to preview and see if you like it or not.

Regards,
Andy Pearlman
Andy Pearlman Studio
  View Public Profile Send a private message to Andy_Pearlman Visit Andy_Pearlman's homepage! Find More Posts by Andy_Pearlman
 
Re: Ring Light Red Eye...
Old 03-29-2005, 08:26 PM   #6 (permalink)
Free Member

 
Jason407's Avatar
 
Join Date: Feb 2004
Member GG#: 38303
Location: Orlando, Florida
Posts: 289
Comments: 0

Jason407 is offline IP: 24.95.242.171
 
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote

What type of ring light is this? Is it one of thosemacro ring flashes, or a real full ring flash?

I have a homemade full size ring flash, and I have not had any trouble with redeye.
  View Public Profile Send a private message to Jason407 Visit Jason407's homepage! Find More Posts by Jason407
 
Re: Ring Light Red Eye...
Old 04-06-2005, 06:08 PM   #7 (permalink)
Marko
Guest
 
Member GG#:
Posts: n/a
Comments:

IP: 83.131.9.229
 
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote

Same reason on-camera flashes on little point-and-shoot cameras do. The light source is very close to the angle of the lens. The red eye is literally the blood vessels of the subjects corneas illuminated.

How to prevent red eye? Ever notice what those cheapy little snapshooter "say cheese" point-and-shoot cameras do on the "red eye reduction mode?" They strobe a little light from the flash before exposure. Why? Because the light forces the subject's iris to close down. The smaller the subject's pupils, the less chance for red eye. Using a bright focusing lamp generally does the trick in the studio or indoors (and that's my favorite method because ringflash does not have a modelling lamp, and the light allows me to see and focus better in the viewfinder). When shooting with ringflash in daylight it's also no problem.

The other 2 things of course are shoot B&W or simply retouch it out in photoshop. Those are 2 methods by which a whole lot of ringflash red eye problems are resolved, believe it or not...
 
 
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
A Ring(ing) Endorsement! Part I AND Part II Fish Main Community Forum 17 05-29-2007 06:26 PM
Minimum Strobes/Monolights power needed? RHWeiner Main Community Forum 11 11-27-2006 03:09 PM
Spec & result of my homemade Ring Light (Multiple Images) m435tro Tech Talk Forum 10 08-18-2004 01:38 AM
Ring Light Questions Gunfitr Tech Talk Forum 3 01-06-2003 01:40 AM

Sponsors


New To Site? Need Help? Photographer & Model Links
All times are GMT -5. The time now is 04:37 PM.

© 1999-2017 Garage Glamour™




Search Engine Friendly URLs by vBSEO 3.2.0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93