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Mysterious Rainbow Filter ?? 🌈🌈

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    Mysterious Rainbow Filter ?? 🌈🌈

    Hi Guys!
    Trying to find out what is this mysterious special-effect filter? It's a diffraction filter that divides the light into organic random colorful spots.
    You can see it in action in this video:
    https://streamable.com/rdotga

    And I managed to find an image of people using it, it seems to be a squared filter with etched diagonal lines (marked via yellow arrow):
    https://ibb.co/rxJbGKg

    Would you have any direction or clue what's the name of this filter and where to get it? Seems to be an old one. Any help would be so amazing!
    Thank you so much!

    Unknown rainbow filter.jpg

    #2
    These could be crystal ball filters. Particularly some variation of a trigonal prism.

    https://www.bhphotovideo.com/c/produ...m_crystal.html

    Random link...there are diffferent kinds, some screw on lenses.

    If a certain photographer catches this thread, they’d know immediately and have more suggestions.

    Comment


      #3
      Originally posted by NorBro View Post
      These could be crystal ball filters. Particularly some variation of a trigonal prism.
      https://www.bhphotovideo.com/c/produ...m_crystal.html
      Hey buddy!
      1. No confusion here, as you can definitely see from the BTS image how this filter looks [and it is far away from the trendy youtuber glass that people use].
      It's a square filter with etched diagonal lines, and I guess it's an old one [meaning- it's probably sold on eBay. Not B&H], and I just gotta figure out it's exact name.

      2. Also, in my screenshot you can see the sample I crossed with an "X" so people won't be confused with other refraction / diffraction filters that spread the light so symmetrically. Which is not the case here.
      As this filter scatters those colorful drops organically & randomly.

      I got a feeling that veteran cinematographers might know what this filter is, as it was used with SUPER8 film cameras, and I just didn't see any clue of someone using it nowadays...

      Comment


        #4
        The information above was direction as requested...need to Google hard for the specific hardware above (or just reach out to the people above).

        Although I mentioned crystal ball filters in the opening of the response, it should have said crystal filters, glass.

        That's what they are...plates, balls, squares, rectangles, triangles, flat, bumpy - and you can position them differently in front of the camera (even stack them) and the dispersion result will depend on how light hits and travels through the object(s). Simple concept, YouTube or no YouTube.

        There are different designs and creative choices versus a flat plate. The one above is actually very simple and can easily be done in post (combining and adjusting multiple digital lens flares that have control over various parameters such as colors, bokeh, location of elements, etc).

        ___

        I'm sure you'll find it eventually but if not: glue some RGB gems (the colorful spots you mention are only red, green and blue) in a similar pattern above on a piece of glass and you'll have some fun.

        Comment


          #5
          Ah, the wonderful world of obscure gadget filters.

          My favorite is “Confetti”.


          1475685985_1278278.jpg
          Sachtler tripod user for 40+ years.

          Comment


            #6
            Originally posted by NorBro View Post
            The one above is actually very simple and can easily be done in post (combining and adjusting multiple digital lens flares that have control over various parameters such as colors, bokeh, location of elements, etc).
            I'm sure you'll find it eventually but if not: glue some RGB gems (the colorful spots you mention are only red, green and blue) in a similar pattern above on a piece of glass and you'll have some fun.
            I appreciate the efforts, man, but:
            1. Unless you wanna kill hours & days in the editing room- never ever try to recreate such an effect, with motion tracking everything, and at the end it will still look CG.
            2. Very cool idea with sticking colorful gems to glass or something, but, it won't work, as the refraction spots move all around the place. Appear & disappear. Sticking a glass like that will anchor these gems to one place, making it look like dirt on the lens.

            Again, my quest here is about finding the name of this filter.
            I don't want to recreate or fake it. Question is...who the hell could know anything about it?

            Comment


              #7
              Originally posted by JPNola View Post
              Ah, the wonderful world of obscure gadget filters.

              My favorite is “Confetti”.
              I know, man. It's a 200-400$ Schneider filter...BUT, this isn't the filter in the images above... :\
              Last edited by eladbari; 02-20-2021, 11:04 AM.

              Comment


                #8
                Originally posted by eladbari View Post
                1. Unless you wanna kill hours & days in the editing room- never ever try to recreate such an effect, with motion tracking everything, and at the end it will still look CG.
                It's instant these days, man.

                I know the most passionate in the industry will always do the manual labor of love/art, but just wanted to point that out.

                Will not comment any more about the recreation aspect, but there are hundreds of plugins out there. And with AI doing various calculations and keyframing, it's finger clicks, not hours or days.

                If you care to browse through each video sample below, you'll see beautiful results.

                Even Hollywood uses this stuff every day.

                https://www.motionvfx.com/store,mlea...ism,p2308.html

                https://www.motionvfx.com/store,mbok...-4k,p2006.html

                https://www.motionvfx.com/store,mcaustic,p2166.html

                https://www.motionvfx.com/store,mleaks-halo,p2086.html

                https://www.motionvfx.com/store,mleaks-4k,p1989.html

                Dozens of compositing elements that look very realistic, and some with full, simple, instant control.

                It might be difficult to comprehend without the experience, but you could create your desired pattern above in seconds.

                MVFX_Sample Effects.jpg

                Comment


                  #9
                  Lensbaby has a filter in their variety pack that's kind of close (results from samples) but still not the same...now I'm determined to find it, ha.

                  OMNI.jpg

                  Comment


                    #10
                    Originally posted by eladbari View Post
                    I know, man. It's a 200-400$ Schneider filter...BUT, this isn't the filter in the images above... :\
                    I was not suggesting it is.

                    I’ve reached out to the Director of that ad. If he responds with an answer I will share it.

                    The ad is from 2010, if that helps narrow it down any. The filter-holder looks like the one from Cokin, who produced all sorts of specialty acrylic filters. In the photo you provided it looks to be acrylic and not glass. I say that because the edges appear to be unsealed.
                    Last edited by JPNola; 02-20-2021, 08:57 PM.
                    Sachtler tripod user for 40+ years.

                    Comment


                      #11
                      Darn, this one is a tough find. If it's not a custom-job or something super vintage, I'm thinking it's transparent holographic adhesive foil with a random pattern that's on a clear rectangular filter or some acrylic glass plate. (There is so much DIY in this particular area of photography.)

                      1.jpg

                      2.jpg

                      Comment


                        #12
                        I think you're on the right track, NorBro. I was looking as well and couldn't find anything, either. The closest I've seen are filters made by Vantage Film, but nothing like this.

                        Comment


                          #13
                          This is a fun rabbit-hole.

                          I learned about Vantage “Bethke effect” filters. But now I’m wanting to know the origin of “Bethke”. Someone involved in development?

                          http://https://www.vantagefilm.com/e...ust-2012-10027


                          Note how every filter is mounted in a tray, suggesting the filters are permanently mounted in trays.

                          Vantage released these in 2012, which is the same year the Seven commercial came out. But we may be able to rule them out given that the filter used in the Seven spot had no tray.



                          OP- where did you find the images of the filter? Maybe the source can provide clues for us.

                          I learned that the spot was directed by Bruce Thierry Cheung.

                          rabbit-holing also led me to these:

                          http://https://prismlensfx.com/products/dream-fx-filter

                          and also these:

                          http://https://www.biofilms.cz/en/sa...amond-bee-nest

                          But our guy is tray-less. So not him.
                          Sachtler tripod user for 40+ years.

                          Comment


                            #14
                            Those links above are broken...need the front fixed (duplicate hypertext transfer protocol).

                            The primelensfx constantly popped up through my several hours of research, ha.

                            One neat find (although not it) were scaly prism plates which would probably have a cool effect.

                            https://www.ebay.com/itm/5pcs-Optica...g/173867652518

                            Scaly.jpg

                            Comment


                              #15
                              Thought this was cool too...6 minutes in until about 6:30.

                              Comment

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