Vid-Atlantic 77mm CineMorph Blue Streak Filter with 72-77mm Step-Up Ring

Vid-Atlantic 77mm CineMorph Blue Streak Filter with 72-77mm Step-Up Ring

Vid-Atlantic 77mm CineMorph Blue Streak Filter with 72-77mm Step-Up Ring

B&H # VIVAMP77CBLU MFR # VAMP77CBLU
Vid-Atlantic 77mm CineMorph Blue Streak Filter with 72-77mm Step-Up Ring

Vid-Atlantic 77mm CineMorph Blue Streak Filter with 72-77mm Step-Up Ring

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Product Highlights

  • Streak Effect from Point Light Source
  • Anamorphic, Symmetric Streaks
  • Blue Color for Streaks
  • Anamorphic Bokeh Effect
  • Elliptical, Out-of-Focus Highlights
  • Optical Glass, Plastic Construction
  • Rotatable, Aluminum-Alloy Filter Ring
  • 77mm Front Filter Threads
  • 72-77mm Step-Up Ring
  • Plastic Case
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  • 1Description

This 77mm CineMorph Blue Streak Filter from Vid-Atlantic is designed to be used perpendicular to a point light source such as the sun, a light bulb, or a candle. It can create the effect of a scene or image that has been recorded with an anamorphic lens and then displayed using a complementary reverse-projection lens. This can result in streaks that are symmetric and extend horizontally from a prominent point light source to draw attention to a specific part of the frame, or to create a visually dramatic effect. Additionally, otherwise circular, out-of-focus highlights within the frame are given an elongated, elliptical shape that is also reminiscent of many wide-aspect-ratio movies recorded on film.

If an image or footage is captured with an anamorphic lens for the primary purpose of obtaining a greater aspect ratio than what is possible when only using spherical lenses on a 35mm format, the direct result will appear compressed and distorted. Projecting this compressed and distorted footage or imagery through a reverse-anamorphic projection lens allows elements within the scene to be viewed in their correct proportions. A complementary effect of this process after it is completed is the creation of blue-colored, horizontally symmetrical highlights from prominent point light sources that can extend through the frame, as well as elongated, elliptical highlights from out-of-focus point light sources such as those that appear in the background.

Many cinematographers and photographers find these effects desirable, and the Vid-Atlantic 77mm CineMorph Blue Streak Filter is intended to allow both such highlights to be easily reproduced when used with a recommended lens that does not have an anamorphic design. It features a built-in, plastic diaphragm that is protected by a layer of optical glass with an intersecting filament. The filament's action is limited to prominent point light sources and renders them with blue-hued streaks, which emulates the character of traditional anamorphic optics that are not designed to suppress colored streaking. Simultaneously, the plastic diaphragm's own elliptical aperture can reproduce the type of out-of-focus highlights that are associated with a traditional anamorphic process.

To minimize vignetting, a recommended lens provides a single focal length that is 50mm or greater for 35mm film, full-frame digital, or APS-C digital cameras, and can be set to an f-stop ranging from f/0.95 to f/2.8. To help ensure that the elliptical highlights are not clipped, this 77mm CineMorph Blue Streak Filter is intended for use with lenses that have 62 to 82mm front filter threads, while lenses with 46 to 62mm front filter threads can instead use a separately available Vid-Atlantic 58mm CineMorph Blue Streak Filter. CineMorph Clear Streak Filters are also available, and can allow existing colors or lack of colors displayed by prominent point light sources to be maintained.

A lightweight, aluminum-alloy step-up ring is included, which can be used to adapt this filter on lenses with 72mm filter threads. Step-up or step-down rings for recommended lenses with filter threads other than 77mm or 72mm are separately available.

This filter is most effective for pictures where the light sources used to generate highlights feature a significant degree of contrast from the rest of the image. Its diaphragm, protective glass, and filament are mounted within an aluminum-alloy filter ring that can be rotated to adjust the overall orientation of the streak and elliptical highlight effects.

  • Creates the effect of a scene or image that has been recorded with an anamorphic lens and then displayed using a complementary reverse-projection lens
  • Renders prominent point light sources with symmetric streaks and imparts an elongated, elliptical shape to otherwise circular, out-of-focus highlights within a frame to create a visually dramatic effect that is reminiscent of many wide-aspect-ratio movies recorded on film
  • Features a built-in, plastic diaphragm that is protected by a layer of optical glass with an intersecting filament
  • Filament's action is limited to prominent point light sources and renders them with blue-hued streaks
  • When used with a single-focal-length lens that is 50mm or greater, and set to an f-stop ranging from f/0.95 to f/2.8 on a 35mm film, full-frame digital, or APS-C digital camera, the diaphragm's own elliptical aperture can reproduce the type of out-of-focus highlights that are associated with a traditional anamorphic process while minimizing vignetting
  • Intended for use with lenses that have 62 to 82mm front filter threads, while lenses with 46 to 62mm front filter threads can instead use a separately available Vid-Atlantic 58mm CineMorph Blue Streak Filter
  • Most effective for pictures where the light sources used to generate streaks and out-of-focus highlights feature a significant degree of contrast from the rest of the image
  • Filter diaphragm, protective glass, and filament are mounted within an aluminum-alloy filter ring that can be rotated in order to adjust the overall orientation of the streak and elliptical highlight effects
  • 77mm front filter threads allow for use with other filters
  • Lightweight, aluminum-alloy step-up ring included to adapt filter on lenses with 72mm filter threads
  • Plastic filter case for storage and transport
In the Box
Vid-Atlantic 77mm CineMorph Blue Streak Filter with 72-77mm Step-Up Ring
  • CineMorph Filter
  • Step-Up Ring
  • Microfiber Cleaning Cloth
  • Plastic Case
  • Table of Contents
    • 1Description
    Type Diffraction
    Optical Effect
    Size 77 mm
    Filter Factor 1 (0 Stop)
    Rotating Yes
    Construction Plastic
    Optical Glass
    Aluminum Alloy
    Front Filter Thread Size 77 mm
    Front Lens Cap Size 77 mm
    Packaging Infoswatqscwdrwyzewzb
    Package Weight 0.3 lb
    Box Dimensions (LxWxH) 6.2 x 5.2 x 1.1"
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