The Schneider 4x4" 3mm Green True-Streak Filteris designed to be used perpendicular to a point light source such as the sun, a light bulb, or a candle. Within the filter's glass is a combination of fine line types whose action is limited to point light sources. Upon those light sources, those lines 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 prominent, elongated streaks that are symmetric and extend horizontally from each point light source for the purpose of drawing attention to a specific part of the frame, or to create a visually dramatic effect.

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 elongated, blue-colored, horizontally symmetrical highlights from point light sources that can extend through the frame.

Many cinematographers and photographers find this effect desirable and the Schneider 4 x 4" 3mm Green True-Streak Filter is intended to allow such highlights to be easily reproduced when using optics that do not have an anamorphic design. This filter renders the streaks it helps to create with a green hue, instead of the blue highlights generated when using traditional anamorphic optics that are not designed to suppress streaking. True-Streak Filters that are formulated to create red, orange, yellow, blue, pink, or violet banding instead of green are also available, as well as Clear True-Streak Filters that can allow existing colors or lack of colors displayed by point light sources to be maintained.

The line types within this filter's glass are placed 3mm apart from each other. True-Streak Filters with spaces of 4mm, 2mm, or 1mm between their lines are also available where this filter type's effect becomes progressively stronger as the spacing between those lines is decreased.

This filter is most effective for pictures where the light source used to generate the streak effect is a highlight with a significant degree of contrast from the rest of the image. It is constructed from water white glass for clarity as well as color fidelity.

Streak Effect from Point Light Source    Anamorphic, Symmetric, Elongated Streaks    Horizontal Streaks from Light Source    Green Color for Streaks    Water White Glass Construction    Padded Pouch

• Creates prominent, elongated streaks that are symmetric and extend horizontally from point light sources within a scene
• Draws attention to a specific part of the frame, or can create a visually dramatic effect
• Allows the effect of anamorphic optics upon highlights to be reproduced when using optics that do not have an anamorphic design
• Creates green-colored streaks
• Constructed from water white glass for optical clarity and color fidelity
• Padded pouch included for storage and transport

Related Questions and Answers

Q: 1. Hi! Could you please tell me what the diameter of the front and rear elements of this lens are? Close approximations are fine! Thank you!

A: This is not a published specificatiopn. Please contact the manufacturer directly please: Schneider: Tel: 800-228-1254 Email jsioringas@centuryoptics.com

Q: 2. If I buy this along with the Lamparte DSLR Starter Rig B&H # LABSK01, do I need to also buy 2 short rods for the front to mount the matte box?

A: You should be able to get away without it., Unless you are using a really long lens. You will have to adjust the camera to connect to the the matte box. I don't have the extension and it works fine for me with a GH4.

Q: 3. helloThe item, are there original packaging?? holder is - Schneider exterior carton, serial No. 68-885603? built plastic bag is - Lee FK 4mm Filter Holder?? filter is - Schneider 4x5.65 Graduated Neutral Density Water-White Glass Filter - Soft Edge with Vertical Orientation?? Can i choose - (ND) 1.2?regards

A: This is a genuine Schneider product in its original packaging, yes. For sales inquiries, please email us directly at sales@a href= http://bhphoto.com target= _blank bhphoto.com./a

Q: 4. Is this lens has got the AF mode? Thanks,

A: There is no autofocus (AF) on these lenses. They are entirely mechanical and have no electronic elements.

Q: 5. Does it support VLANs?

A: Yes, the Ubiquiti Networks Dream Machine 4x4 MU-MIMO AC1733 Wave-2 Dual-Band Gigabit Access Point has VLAN support.

Q: 6. Can we buy extra filter trays for multiple filters?

A: Currently, there are no add-on filter stages available for this matte box. Thus it can only take two 4x4 filters at one time. The trays themselves may be available from the manufacturer though they are not listed.

Q: 7. Does the lens have a metadata system that sends focus distance and T-stop data back to the camera? (Like Arri LDS)

A: This lens does not have any electronics to send meta data to a camera, like the /i Electronics Technology inside Cooke Cine Lenses.

Q: 8. where are these lenses manufactured?

A: Following unit is made in Germany.

Q: 9. What is the best enlarger lens to print 35mm negatives on a Beseler 4x5 enlarger?

A: A 50mm Schneider or Rodenstock lens would be most useful.

Q: 10. how is the focus position vary along with wavelength?

A: We would love to assist you with this question, however we do need a bit more information. If you could email this question to provideo@bhphoto.com with some additional information like what camera you'll be using and the application it is for we'll do our best to assist you.