[SML] Difference between LED-specific 50-degree EDLT and "normal" EDLT?

Jon Ares jonares at arescreative.com
Wed Jan 15 18:29:50 UTC 2025


Thanks.... eventually I was able to find a document on ETC's website
this morning that noted vignetting with the original 50 degree EDLT
lenses when placed on the LED fixtures, so they adjusted the design to
minimize it.

 - Jon

On Tue, Jan 14, 2025 at 5:06 PM Matthew Breton
<theatricalmatt at hotmail.com> wrote:
>
> Well, the big difference is the LED-specific one takes a 7.5" gel frame,  And like the other EDLT lens tubes, has a solid metal baffle at the front and rear.  Unlike the old-school 50-degree lens tube, the LED-50 has two compound lenses, so taking it apart for maintenance is a bit more work.
>
> I haven't noticed that much difference in terms of light output or the sharpness of the optics.
>
>
> Matthew Breton  |   he, him, his
> Design for Theater and Dance
> ________________________________
> From: Stagecraft <stagecraft-bounces at theatrical.net> on behalf of Jon Ares via Stagecraft <stagecraft at theatrical.net>
> Sent: Tuesday, January 14, 2025 2:20 PM
> To: Stagecraft Mailing List <stagecraft at theatrical.net>
> Cc: Jon Ares <jonares at arescreative.com>
> Subject: [SML] Difference between LED-specific 50-degree EDLT and "normal" EDLT?
>
> Hi - wondering if anyone has any empirical knowledge between ETC's
> "LED-specific 50-degree EDLT lens tubes", versus the "standard" EDLT
> 50-degree lens tube? (Other than very small price difference).   My
> local salesdude hasn't seen them side-by-side, so he doesn't know
> either.... anyone used both?
>
> For what it's worth, these lenses would be used on either ColorSource
> or S4LED Series II fixtures, with gobos, but not incandescent
> fixtures.  TIA!
>
>  - Jon
>
> --
> Jon Ares
> www.arescreative.com
>
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-- 
Jon Ares
www.arescreative.com



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