Conventional Fixtures Lens tube/Lens barrel

[LekoBoy]

Which is which? "Run the barrel" means move the lenses, but ETC has their EDLT's, so...
1. What is the part that holds the lenses called?
2. What is the cylinder affixed to the fixture body called?

 

[waynehoskins]

I've always understood them to be synonymous, both referring to the dealie that holds the lenses and is what lets you move the lenses with respect to the (lamp and) reflector.

I'm not sure the proper name for the thingy that the barrel moves within. I may have known at one time and just forgotten it. Housing or body is what, I believe, it's part of, but I'm sure that also includes the rest of the unit, on both sides of the gate.

But in any event, Lens Tube is ETC-speak for Barrel. Or looking at it the other way, Barrel is old-school-speak for Lens Tube.

 

[gafftaper]

I would have to agree with Wayne. In ancient times (before fire) we called it a barrel. Then ETC released the S4 with interchangeable lens tubes and gave us a different term to describe the new design. Today they have merged together to mean the same thing.

I bet ETC has an official name for the part of the fixture that holds the lens tube and I bet someone from Middleton will stop in and tell us that term in a post or two.

 

[MNicolai]

http://www.etcconnect.com/docs/docs_downloads/techdocs/S4_Assembly_Guide_UL_2006-01_revA.pdf


The barrel holds the tube. The lens tube completely detaches from the front barrel assembly. The barrel not only houses the lens tube, but also the shutters and iris slot.

I guess that raises the question, is "Run the barrel" a proper term? From this new found info, it looks like it should be "Run the tube."

 

[Esoteric]

http://www.etcconnect.com/docs/docs_downloads/techdocs/S4_Assembly_Guide_UL_2006-01_revA.pdf


The barrel holds the tube. The lens tube completely detaches from the front barrel assembly. The barrel not only houses the lens tube, but also the shutters and iris slot.

I guess that raises the question, is "Run the barrel" a proper term? From this new found info, it looks like it should be "Run the tube."

Winner winner chicken dinner!

Although the terms are still interchangeable and down here in the south we call the lens barrel part of the instrument body (even though the Source4 body can be taken apart into two pieces).

Mike

 

[derekleffew]

...I guess that raises the question, is "Run the barrel" a proper term? From this new found info, it looks like it should be "Run the tube."

It probably should be "Run the tube," but perhaps "Run the barrel" somehow relates to Barrel Racing. (Some still say "Spin the bottle" even with S4-Pars.)

To re-iterate:

1. What is the part that holds the lenses called?

Lens tube.

2. What is the cylinder affixed to the fixture body called?

Lens barrel.
The tube goes in the barrel.

However, in their exploded views of the 360/360Q, Altman calls #1 "Lens Assembly" and #2 "Lens Tube." In the specification sheet sheet, #1 is called a "Lens Tube."

 

[waynehoskins]

http://www.etcconnect.com/docs/docs_downloads/techdocs/S4_Assembly_Guide_UL_2006-01_revA.pdf


The barrel holds the tube. The lens tube completely detaches from the front barrel assembly. The barrel not only houses the lens tube, but also the shutters and iris slot.

I guess that raises the question, is "Run the barrel" a proper term? From this new found info, it looks like it should be "Run the tube."

Most interesting .. but is that universal, or only ETC-speak?

Or is it kind of like "speaker", which can mean both "cone driver" and "multi-driver cabinet"?

Would be interesting to look at some old Strand or Century literature, if any of that's still left.

 

[gafftaper]

We probably have our old nemesis local slang to deal with here. There's what the manufacturer calls it and then there's what the crew down at the local theater say.

 

[Esoteric]

We probably have our old nemesis local slang to deal with here. There's what the manufacturer calls it and then there's what the crew down at the local theater say.

Yup, we still say spin the bottle even with Source4 PARs.

Mike

 

[zuixro]

We call the lens tube any one of, or any combination of the following terms:
Lens
Tube
Barrel
Cannon

For example: "Grab a 27 degree lens tube barrel cannon."

Usually just cannon though.

 

[Esoteric]

Now PLAYING spin the bottle is something else entirely. ;-)

Mike