SKU: 61663125542

Blackmagic Design Spares - Camera - Glass Filter EF

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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
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Exchange/Return Notes
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  • To process your return/exchange, please contact us at [email protected]
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SKU: 61663125542

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Leon
Birmingham, US
★★★★★ 5
Great upgrade for a rental apartment mattress
The mattress in my rental place is firm to the point where it almost feels unfinished. Instead of replacing it, I decided to try adding this topper. It made an immediate difference in the way the bed feels when I sit or lie down. There’s a nice cushioned layer that softens that “flat” feeling but still holds its shape. Another thing I noticed is how breathable it is. I expected thick padding to feel warm, but the airflow here feels better than the original mattress surface. Even after moving around, it never felt heavy or stuffy.
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Reviewed in the United States on November 22, 2025
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Alexa Young
San Leandro, US
★★★★★ 5
Soft and Comfortable Topper
I got this bamboo mattress topper for a small single bed we keep in our guest room, but I ended up testing it out myself first. The material feels soft and breathable, which is nice because that room can get a little warm in the afternoons. It adds a good amount of cushioning without making the bed too soft. After a couple of nights, my back actually felt better compared to the old mattress alone. I also appreciate that it’s machine washable, because our guest room sometimes doubles as a nap spot for my son after swim class, and spills happen. It dried pretty quickly in the dryer and kept its shape. Overall, it made the bed feel much more comfortable and fresh.
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Reviewed in the United States on November 24, 2025
T
TED
Carnegie, US
★★★★★ 5
Added comfort for someone working night shifts
I work odd hours, so my sleep schedule is all over the place. My mattress has always felt a bit too stiff after long shifts, so I got this topper hoping it would help me relax faster. It really changed the overall feel of the bed. The padding has a cushioned lift that makes lying down feel smoother, especially around the shoulders and lower back. Instead of feeling like I’m dropping onto a firm surface, there’s a soft layer that evens out the pressure. What surprised me most is how light the surface feels. Even after staying in one position, it never gets stuffy or heavy. The airflow makes a difference when your body is trying to wind down after work. The fitted pocket also stays tight around the mattress, so nothing shifts when I move. I can stretch out without worrying about the topper sliding off.
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Reviewed in the United States on November 24, 2025
K
Kyle
Houston, US
★★★★★ 5
Good option for softening a college apartment bed
I moved into a college apartment where the bed felt like it belonged in a dorm from years ago—flat and stiff. Instead of dealing with it, I tried this topper, and it added a cushiony layer right away. The surface feels much more forgiving when I fall onto the bed after studying or hanging out with friends. It has just enough padding to take away that board-like feeling without making the bed sag. Another thing I noticed is how breathable it is. I expected something this thick to feel warm, but it actually stays cool even if I stay on one side for a long stretch.
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Reviewed in the United States on November 19, 2025
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Luna
Carnegie, US
★★★★★ 5
Makes an older family mattress feel brand new
There’s an older mattress in my place that everyone avoids because it feels too worn in the middle. Instead of replacing it, I decided to give this topper a shot. Once it settled on the bed, it added a thick cushioned layer that helped level out the whole surface. Lying down feels smoother, and the middle no longer dips the way it used to. The fabric feels cool when you touch it, and it keeps that same feel even after staying on it for a while. I thought a thick topper might hold warmth, but this one keeps the air moving enough that the bed stays comfortable throughout the night.
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Reviewed in the United States on November 25, 2025

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