SKU: 34760664076

Schneider 138mm 1/4 Wave Retarder Filter

Sale price$26941.50 Regular price$29935.00
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Description

Schneider 138mm 1/4 Wave Retarder FilterPolarization Control Filer For 3D Cinematography Prevents 3D Camera Image Disparity 1. 25x Filter Factor, +0. 3 Stop Consistent 3D Camera Optical Paths No Reduction in Resolution Plastic Case The Schneider 138mm 1 4 Wave Retarder Filter is a polarization control filter that is designed for 3D cinematography. The process of recording 3D video employs a reflected image from the silvered surface of a 3D rig's beamsplitter. In instances where the recorded

  • Polarization Control Filer
  • For 3D Cinematography
  • Prevents 3D Camera Image Disparity
  • 1.25x Filter Factor, +0.3 Stop
  • Consistent 3D Camera Optical Paths
  • No Reduction in Resolution
  • Plastic Case

The Schneider 138mm 1/4 Wave Retarder Filter is a polarization control filter that is designed for 3D cinematography. The process of recording 3D video employs a reflected image from the silvered surface of a 3D rig's beamsplitter. In instances where the recorded image contains glare, partial polarization can occur as the light entering the 3D rig is reflected from the silvered surface. This can result in disparity between the left and right optical paths created in part by the beamsplitter, and ultimately, a compromised 3D effect.

When the Schneider 138mm 1/4 Wave Retarder Filter is used with a 3D rig, partial polarization from the beamsplitter is prevented, helping to ensure that the left and right optical paths have identical properties for a consistent 3D effect with no reduction in resolution.

Designed for use with 3D camera rigs to control for polarization that can result from optical path disparity.
Helps to ensure a consistent 3D effect.
1.25x filter factor reduces exposure by 0.3 stop.
Constructed from water-white glass for optical clarity.
Plastic filter case for storage and transport.
In the Box
Schneider 138mm 1/4 Wave Retarder Filter
  • Plastic Case
  • 1-Year Limited Warranty
Filter Type Polarization control
Size 138 mm
Filter Factor 1.25x (0.3 stop)
Effect Prevents or minimizes partial polarization within a 3D camera rig that can result in left and right optical disparities
Construction Water-white glass
Front Filter Thread Size None
Front Lens Cap Size None
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 34760664076

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I have suffered migraines for years. It was so bad in December 2025 that I begged my neurologist for help. He suggested several things that I was unwilling to try due to the side effects. However, he recommended I try 400 mg daily of Magnesium L Threonate. January 2026, I started the taking it. The first month only 3 migraines for the whole month after years of 3-4 migraines a week. Its May 2026 and I have only had 3 more migraines this year. I highly recommend this product for migraine prevention.
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Reviewed in the United States on May 20, 2026
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tron
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★★★★★ 5
The best Magtein I have tried thus far
I take double the dose because when I double the dose it improves my ability to pay attention and I am less distracted. Yes I have ADD but no longer take Adderall for it. Being 56 years old Magtein really improves my memory and restored it to like new by ten days of use. Shockingly It woke me up from a light sleep late evening as memories rushed in and I have been taking it ever since. I have been taking it 7 months now and over time it has slowly but surely improved my short term memory so that it also is nearly the same as before. I have seen slight improvements in working memory enough to be encouraged It may become an advancement from a historical standpoint. This is my second bottle by Teraputics. I was taking 2 bottles of NOW brand per month for my memory and concentration because it is the cheapest but when Amazon ran out Teraputics is the product I decided to try next. But I like this brand better as it seems more concentrated or I should probably say more bio-available so I decided to by it and pay the extra money over NOW brand. I just wish it were cheaper. I am hoping to ask them for a deal if I buy 20 bottles in advanced as it is a must have for me. With this second purchase they included a free bottle coupon and not a buy one get one free. Right now I am very happy to get the free bottle.
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Reviewed in the United States on March 23, 2019
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Gloria C.
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★★★★★ 3
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Reviewed in the United States on December 22, 2025
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Michael R. Wong
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Great supplement
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