SKU: 61663125542

Blackmagic Design Spares - Camera - Glass Filter EF

Sale price$652.57 Regular price$725.08
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Description

Blackmagic Design Spares - Camera - Glass Filter EFThe Blackmagic Design Spares Camera Glass Filter EF refers to the IR Cut OLPF (Optical Low Pass Filter) assembly specifically for the Canon EF mount versions of Blackmagic cameras. This part is most commonly sought for the Pocket Cinema Camera 6K (Original & G2), the 6K Pro, and the URSA Mini Pro series. Because the EF mount has a larger throat and a longer flange distance ($44\text{mm}$) than MFT, this glass is larger and sits deeper within the

The Blackmagic Design Spares - Camera - Glass Filter EF refers to the IR-Cut / OLPF (Optical Low Pass Filter) assembly specifically for the Canon EF-mount versions of Blackmagic cameras. This part is most commonly sought for the Pocket Cinema Camera 6K (Original & G2), the 6K Pro, and the URSA Mini/Pro series.

Because the EF mount has a larger throat and a longer flange distance ($44\text{mm}$) than MFT, this glass is larger and sits deeper within the "turret" of the camera body.


Core Responsibilities

  • Infrared (IR) Suppression: Blocks the infrared spectrum to prevent "IR contamination" (where dark fabrics or shadows take on a reddish or magenta tint).

  • Moiré & Aliasing Reduction: On models equipped with an OLPF (like the newer 6K Pro/G2 and 12K OLPF), this glass microscopically blurs fine repeating patterns that the high-resolution sensor would otherwise "alias."

  • Environmental Seal: Protects the sensitive CMOS sensor from dust, humidity, and accidental contact during lens changes.

When to Replace the EF Glass Filter

  • The "Cloudy" Sensor: Over time, humidity can react with the coatings on the filter, creating a permanent haze or "fungus-like" appearance. This is a common issue in humid climates and cannot be wiped away.

  • Surface Pitting: High-velocity dust (common in desert or wind-blown shoots) can create microscopic pits in the glass that cause "flaring" when shooting toward light sources.

  • Oxidation/Discoloration: If your images show a consistent color cast that cannot be corrected in DaVinci Resolve, the filter's chemical coating may have oxidized.

  • Cleaning Damage: Scratches from using improper cleaning tools (like a dry T-shirt or low-grade swabs) are the #1 cause for replacement.


Technical Installation Note

Repair Level: 2 (Moderate). While you are working inside the lens mount, you do not typically need to disassemble the entire camera chassis.

  1. The Turret System: In the Pocket 6K Pro and 6K G2, the glass is housed in a removable "turret." You remove three Phillips screws inside the mount to lift the entire glass housing out.

  2. Cleanliness is Mandatory: This is a "clean-room" operation. Any dust trapped between the filter and the sensor will be visible in your footage. Use a vacuum or a high-quality air blower (like a Giotto’s Rocket Blower) before and during installation.

  3. Gasket Integrity: Ensure the small rubber O-ring or gasket is seated perfectly. If the gasket is pinched, the glass will sit at an angle, causing one side of your image to be soft (out of focus).

  4. Flange Calibration (Shimming): Different thicknesses of glass change the optical path. If you switch from an IR-cut to an OLPF (or vice-versa), you may need to add or remove metal shims behind the EF mount to ensure your lens "Infinity" marks remain accurate.


Comparison: Filter vs. Sensor

Part Cost Complexity Symptom
Glass Filter $~100$ USD Low-Medium Scratches, Haze, IR Polluted Blacks
CMOS Sensor $~800+$ USD High (Expert) Dead Pixels, Vertical Lines, Pink/Green Tearing

Pro-Tip: The "Breath Test"

If you see a mark on the glass, do not immediately try to scrub it. Use a specialized sensor loupe (magnifying glass with LEDs) to determine if it is on top of the glass or etched into the coating. If a gentle wet-clean with a $24\text{mm}$ sensor swab and specialized fluid doesn't move the mark, the coating is likely damaged and the glass must be replaced.

Are you seeing a physical scratch on the glass, or is your image looking "hazy" and "soft" across the entire frame?

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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  • 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: 61663125542

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Cynthia Chouinard
Whiting, US
★★★★★ 5
Comfortable
These are very comfortable to wear
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Reviewed in the United States on January 3, 2026
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John Mix
Phoenix, US
★★★★★ 5
Love these socks!
The wife struggles with socks. She only like the Nike ones, then they discontinued them, so had to start the search again! Found these, they are expensive just like the Nike, but the size is true, they look great, they are super soft and stretchy. They are light weight and breathable and seem to wick away moisture. She loves these!
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Reviewed in the United States on November 18, 2025
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Glass
Birmingham, US
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
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Reviewed in the United States on May 12, 2026
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Lauren
Carnegie, US
★★★★★ 5
Great fit, truly doesn’t slide off heel
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
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Reviewed in the United States on April 19, 2025
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Elliz
Whiting, US
★★★★★ 5
So good - I’m buying MORE.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I’m gonna give you more detail than you need about why I’m buying these socks again. I’ve been the mom of girl athletes. I’ve been a model and a fashion director. I’ve worn every brand of shoe on the planet and never found a shoe that did NOT find a vulnerable spot on my foot to rub raw. Even my beloved white Jack Purcell sneakers. With that said - I don’t like socks. I’ve bought a TON of them in 35+ years.....all major brands. They shift. They lose their shape. They get holes in them and wear out too fast. Not these. I retired this year, and knowing I’d be in sneakers a lot, traveling, sightseeing ...... I bought these 6 months ago and have worn them constantly. I’ve traveled with them. I’ve washed them in hot water and bleach. The socks are like brand new. They are exactly the right cut so as not to be seen in a basic sneaker. The little silicone patch on the heel stays put. Not once have I had to dig down into my shoe and pull the sock back up. The socks have stayed soft and EXACTLY the same as the day they were new. Like I said - I am back to buy them again. Great quality!
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Reviewed in the United States on January 20, 2021

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