arri dichroic filter

U

unskooled

New member
Arri supplies an 168 mm (6.6") dichroic filter for the Arrilite 800. Their 650w fresnel takes a 6 5/8" (6.625") scrim, but Arri says that the filter won't work with the fresnel. Why would that be?
 
I think you answered your own question. 6.6 vs 6.25. the filter would not fit in the retainer. Do you own any Arri's. Gotta admit...you arent missing by much. But I think the design is to make things un-compatible...esp the scrims, filters, rings etc. I bought the dichroic filter for the 650 arri then bought the 1000w fresnel so I'm stuck with the wrong filter. Your not looking to purchase a dichroic are you? hehehehe
 
bwest, it's not 6.6 vs 6.25, it's 6.6 vs 6.625. But are you also saying that you bought a dichroic for the 650 Arri fresnel? That's what I'm looking for, but as far as I can tell from the Arri site only a filter frame is available specifically for the 650.
 
OK, I see what you mean...I missed that! Upon further investigation I'm seeing the arri dichroic filters being sold only with their flood lamps [arrilites], not the arri fresnels, so maybe the dichroic messes up the fresnel's pattern. I have the arrilite 650 dichroic, its a flood. I did notice at B&H that the 650 fresnel has scrims, snoots, etc under more accessories...in addition to the first accessary window, but no dichroic! So maybe fresnel and dichroic arent compatible?

try this:
http://www.bhphotovideo.com/bnh/con...2020&is=REG&si=acc&showAll=1#more_accessories
hope that works,

actually thinking about this more, the fresnel spot function is quite intense and may change the color of the dichroic's color output...overpower the dichroic's mirroring effect
 
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