Where to get fresnel lens? at DVinfo.net

Alex Milne · June 30th, 2004, 12:43 PM

I was just wondering where someone could get a good fresnel lens. -thanks
-alex

Wayne Orr · June 30th, 2004, 03:10 PM

The lens would be specific to the light manufacturer. The lens is not sold separately, except as a replacement. Were you looking for a recommendation for a fresnel light, such as Arri, Mole, or LTM? If so, for what application?

Wayne Orr, SOC

Alex Milne · July 1st, 2004, 09:12 AM

oops, I guess I don't really know what i'm talking about, but i'm building an agus35 and there's an overexposed light spot in the middle. I ran a search and came up with a thread from back in april, somebody had the same problem, and it was suggested he/she get a fresnel to reduce and scatter the hotspot. Now as far I could understand a modern day fresnel is an adaptation and miniturization of the old 1800's light house lens, now applied to optics. I'm really sorry if I dont know what I'm talking about. Thanks for any help.
-alex
Heres that thread- http://www.dvinfo.net/conf/showthread.php?s=&threadid=24686

Cosmin Rotaru · July 1st, 2004, 09:29 AM

I had a fresnell in an IKEA catalog :) It was in a book sign (so you could see in detail the pics in the catalog).
It is posible to see the circles of the fresnell throu the GG. Not good (at last mine fresnell had the circles big enough to be visible for the camera).
A better solution would be to use "condenser lens" (they are plane-convex lenses). "condenser lens" are better (and probably more expensive) quality than fresnells (they work the same).

Ari Shomair · July 1st, 2004, 10:03 AM

Get a 35mm Focusing Screen -

They have the proper focal length fresnal lens attached right to them, as well as a ground glass included!

June 30th, 2004, 12:43 PM	#1
Alex Milne Regular Crew Join Date: Aug 2003 Location: Springfield, Massachusetts Posts: 63	Where to get fresnel lens? I was just wondering where someone could get a good fresnel lens. -thanks -alex

July 1st, 2004, 09:29 AM	#4
Cosmin Rotaru Major Player Join Date: Feb 2003 Location: Romania, Timisoara Posts: 453	I had a fresnell in an IKEA catalog :) It was in a book sign (so you could see in detail the pics in the catalog). It is posible to see the circles of the fresnell throu the GG. Not good (at last mine fresnell had the circles big enough to be visible for the camera). A better solution would be to use "condenser lens" (they are plane-convex lenses). "condenser lens" are better (and probably more expensive) quality than fresnells (they work the same). __________________ Cosmin Rotaru

July 1st, 2004, 10:03 AM	#5
Ari Shomair Major Player Join Date: Dec 2003 Location: LA, California, USA Posts: 224	Get a 35mm Focusing Screen Get a 35mm Focusing Screen - They have the proper focal length fresnal lens attached right to them, as well as a ground glass included!

June 30th, 2004, 03:10 PM	#2
Wayne Orr Major Player Join Date: Dec 2002 Location: Northridge Ca Posts: 734	The lens would be specific to the light manufacturer. The lens is not sold separately, except as a replacement. Were you looking for a recommendation for a fresnel light, such as Arri, Mole, or LTM? If so, for what application? Wayne Orr, SOC

July 1st, 2004, 09:12 AM	#3
Alex Milne Regular Crew Join Date: Aug 2003 Location: Springfield, Massachusetts Posts: 63	oops, I guess I don't really know what i'm talking about, but i'm building an agus35 and there's an overexposed light spot in the middle. I ran a search and came up with a thread from back in april, somebody had the same problem, and it was suggested he/she get a fresnel to reduce and scatter the hotspot. Now as far I could understand a modern day fresnel is an adaptation and miniturization of the old 1800's light house lens, now applied to optics. I'm really sorry if I dont know what I'm talking about. Thanks for any help. -alex Heres that thread- http://www.dvinfo.net/conf/showthread.php?s=&threadid=24686