HDS Rotary beam

Snake62

New member
Joined
Oct 23, 2011
Messages
4
Hi,

I just bought an HDS Rotary and there is a donut hole in the beam. Is that beam profile normal? beside this, i am very happy about it!

Thanks
 

AZPops

Well-known member
Joined
Jul 9, 2011
Messages
1,639
I remember reading about a dicussion regarding the donut hole somewhere when I was considering buying one. Maybe it's burried in the HDS Systems EDC #15 thread, but can't be sure.

Good Luck! Oh, I hope you get a few responses, because I'm still considering a Rotary someday!
 

TyJo

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Joined
Mar 9, 2011
Messages
1,011
Location
USA
Mine has a minor donut hole at extremely close distances but it is gone at 4-5 inches. It is normal for lights to have this at close distances, it has not affected the usage of my rotary or my other lights.
 

Tommygun45

Well-known member
Joined
Aug 26, 2010
Messages
438
Ya its totally normal. Its just a feature of many xpg emitters. Its pretty obvious to see if you put a waterbottle cap on it. It also vanishes after about 5 inches.

IMG_20111023_193032.jpg
 

eh4

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Joined
Oct 18, 2011
Messages
2,002
it just means 'show us some visual proof'.
Not to imply that pics prove that it Did happen.
Just asking for a picture.
 

Tommygun45

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Joined
Aug 26, 2010
Messages
438
Well I am pretty sure that anyone who actually has a Rotary knows that its fairly common. Or anyone who owns an XPG light understands this phenomenon. My E1B has it, my E1L has it, my M61, M61L, M61 hi cri, Quark Turbo, etc.... All of my XPG lights have it. Visual proof not necessary. If you know what you are talking about.
 

jalal20

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Joined
Apr 4, 2011
Messages
626
that donut hole is a must in almost any flashlight when u put it that close to the wall or table, the donut hole would be a problem when u see it on a wall a few feet away
 

Snake62

New member
Joined
Oct 23, 2011
Messages
4
Thanks everybody!

I just wanted to be sure about this...Like i said, I am very happy about this light. Sorry for the pic. missing. I will have to learn how to post it...
 
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