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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SKU: 61663125542

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