ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: [1]   Go Down

Author Topic: Gobo Projector with Minimal hazey edge?  (Read 3041 times)

Josh Billings

  • Full Member
  • ***
  • Offline Offline
  • Posts: 228
Gobo Projector with Minimal hazey edge?
« on: February 23, 2015, 09:17:55 pm »

So I'm looking into getting a gobo projector (Strongly prefer LED) and I'm noticing a lot have hazey edges where the spot light would be (with no gobo). Are there any that can minimize this effect? What is causing this?

The effect is easily noticed in this video

http://youtu.be/ftZ3Gwqu5Ek

Looking forward to your feedback

Josh
Logged

Steve Alves

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 547
  • South Florida
    • South Florida Sound
Re: Gobo Projector with Minimal hazey edge?
« Reply #1 on: February 23, 2015, 10:45:56 pm »

Looks like a crappy home made gobo. I have two different Chauvet models. With a professionally made metal or glass gobo and proper focusing they are extremely sharp and look nothing like that.

Here is a vid I found of one of the Chauvet ones I have.

https://www.youtube.com/watch?v=4WLTOCYVYQ4
Logged
Steven Alves
South Florida Sound, Fort Lauderdale, FL
www.southfloridasound.com

Josh Billings

  • Full Member
  • ***
  • Offline Offline
  • Posts: 228
Re: Gobo Projector with Minimal hazey edge?
« Reply #2 on: February 24, 2015, 01:34:22 am »

Looks like a crappy home made gobo. I have two different Chauvet models. With a professionally made metal or glass gobo and proper focusing they are extremely sharp and look nothing like that.

Here is a vid I found of one of the Chauvet ones I have.

https://www.youtube.com/watch?v=4WLTOCYVYQ4

That's odd because even on the product page they've got hazy edges - http://www.chauvetlighting.com/gobo-shot-50w-irc.html

Josh
Logged

Josh Daws

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 335
Re: Gobo Projector with Minimal hazey edge?
« Reply #3 on: February 24, 2015, 09:16:26 am »

projection on an angle regardless of fixture will do that as optics are designed for projection dead to surface. its kinda get what you get. on more expensive or "better" brands the optics are better, and the soft edges are a little less noticeable. but at the end of the day welcome to lighting.

Logged

Steve Alves

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 547
  • South Florida
    • South Florida Sound
Re: Gobo Projector with Minimal hazey edge?
« Reply #4 on: February 24, 2015, 10:53:07 am »

That's odd because even on the product page they've got hazy edges - http://www.chauvetlighting.com/gobo-shot-50w-irc.html

Josh

I have a metal gobo of my logo. I will get you a pic tonight.
Logged
Steven Alves
South Florida Sound, Fort Lauderdale, FL
www.southfloridasound.com

Kyle Leonard

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 91
  • Bozeman, MT
    • Enlightened Events
Re: Gobo Projector with Minimal hazey edge?
« Reply #5 on: February 24, 2015, 01:16:03 pm »

That's going to happen anytime you pass light through a transparency. The black ink won't completely block the light. However, if you use a metal gobo, then you won't have the circle at all. You'll only get the design. I've even used a transparency glued to a metal gobo to get sharp edges on the design (no circle) and color.

Kyle
Logged

Mike Pyle

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1014
  • Santa Rosa, CA
Re: Gobo Projector with Minimal hazey edge?
« Reply #6 on: February 24, 2015, 04:43:31 pm »

Do you need for it to rotate? I stock the Chauvet LFS-5 and LFS-75DMX framing spots and they project a pretty sharp edged gobo.
Logged
Mike Pyle  Audiopyle Sound  707-315-6204
Dealer For: JBL, Soundcraft, Crown, dbx, AKG, Yorkville, EV, QSC, RCF, FBT, Danley Sound Labs, Fulcrum Acoustic, Tannoy, Lab Gruppen, Powersoft, Linea Research, VTC, EAW, Allen & Heath, Ashly, APB, Audix, One Systems, OnPoint Audio, Presonus, K&M, Ultimate, Global Truss, Road Ready, SKB, Gator, Radial Engineering, Turbosound, Midas, dB Technologies, American DJ, Odyssey, ProCo, Rapco, CBI, Elation, Mipro, Chauvet, Blizzard, Shure, Whirlwind, Bassboss, Yamaha, Line 6, Behringer, Whirlwind, On-Stage, more...

Cailen Waddell

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1428
Re: Gobo Projector with Minimal hazey edge?
« Reply #7 on: February 24, 2015, 06:44:48 pm »

An ETC s4 led, with the enhanced definition lens tube does a great job for no hazy edges, with a quality gobo.  That said no solution works when the projection surface is at an angle to the fixture. 

Cheap solutions will generally have cheap results.   But degrees of improvement get exponentially more expensive. 


Sent from my iPhone using Tapatalk
Logged

Ray Cerwinski

  • Jr. Member
  • **
  • Offline Offline
  • Posts: 78
Re: Gobo Projector with Minimal hazey edge?
« Reply #8 on: February 24, 2015, 07:03:00 pm »

That's what you get with cheap transparency gobos. Toner or Inkjet ink just doesn't have the density to block 100% of the light.

Here is a [terrible instagram] photo of a set of custom Rosco Cool Ink projections I did in a ballroom with ETC S4 LED fixtures and 14 degree ED lens tubes.

Done properly, you can get a razor sharp image with absolutely no bleed.
Logged
Ray Cerwinski

Craig Hauber

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 674
  • Mondak Sound Design - Plentywood MT/Grenora ND
Re: Gobo Projector with Minimal hazey edge?
« Reply #9 on: February 24, 2015, 10:36:31 pm »

That's what you get with cheap transparency gobos. Toner or Inkjet ink just doesn't have the density to block 100% of the light.

Here is a [terrible instagram] photo of a set of custom Rosco Cool Ink projections I did in a ballroom with ETC S4 LED fixtures and 14 degree ED lens tubes.

Done properly, you can get a razor sharp image with absolutely no bleed.
Those gobos are amazing Ray!
In the "old" days the light would have burned those up rather quickly, LED's have really changed the game.

I have found the printing 2 copies then stacking them tends to help the black contrast quite a bit, still not as good as a proper glass gobo, but much better than in the OP's video.
Logged
Craig Hauber
Mondak Sound Design
-Live PA
-Installs
-Theatre

ProSoundWeb Community

Re: Gobo Projector with Minimal hazey edge?
« Reply #9 on: February 24, 2015, 10:36:31 pm »


Pages: [1]   Go Up
 



Page created in 0.051 seconds with 23 queries.