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The K&F Concept 82mm Variable ND2-ND400 Filter is designed for photographers seeking precise control over light entering their lens. Its key benefit is the ability to achieve long exposures and wider apertures in bright conditions without overexposure. A potential caveat is the need to verify lens thread size, as this specific filter is for 82mm lenses only. This filter offers adjustable neutral density from ND2 to ND400, is constructed from premium Japanese optical glass with nano-coating for color accuracy and flare reduction, and features a slim design to prevent vignetting.
| Brand | K&F CONCEPT |
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ND stands for Neutral Density. ND2 represents a light reduction of 1 f-stop, while ND400 represents a significant light reduction of approximately 8 to 9 f-stops. The variable nature allows you to choose any level in between.
No, this specific filter has an 82mm thread size and will only attach directly to lenses with an 82mm front filter diameter. For other lens sizes, you would need a filter with the corresponding thread size.
The filter features a super slim design, which significantly reduces the risk of vignetting (dark corners in your photos), especially on wide-angle lenses. However, on extremely wide lenses, some minimal vignetting might still occur at certain focal lengths or when stacked with other filters.
Rotate the outer ring of the filter. The markings on the ring indicate the approximate density (e.g., ND2, ND8, ND400). You can adjust it smoothly between these points.
Yes, this filter is ideal for long exposures as it allows you to reduce the amount of light entering the lens, enabling longer shutter speeds even in daylight conditions.
The nano-coating helps to reduce lens flare and ghosting, improve light transmission, and ensure a neutral color balance, preventing unwanted color casts in your images.
Use the included microfiber cloth to gently wipe away dust and smudges. For tougher spots, a lens cleaning solution applied sparingly to the cloth can be used. Avoid abrasive materials.
This is often caused by setting the variable ND filter to its extreme ends. Rotate the outer ring to a less dense setting (closer to ND2) to resolve this. Ensure the filter is not over-rotated.
Ensure the filter is clean. At very high ND levels (closer to ND400), some minimal color shift may occur. Try adjusting the filter to a slightly lower ND value or correct color balance in post-processing.
Check that you are using an 82mm lens and that the filter threads on both the lens and the filter are clean and undamaged. Try screwing it on gently and straight.
Setup: Screw the filter onto the front of your camera lens that has an 82mm filter thread. Ensure it is threaded on straight and snug. To adjust the ND level, rotate the outer ring of the filter. The markings on the ring indicate the approximate ND strength (ND2 to ND400).
Compatibility: This filter is specifically designed for lenses with an 82mm front filter thread. Always verify your lens's filter thread size before purchasing. It is not compatible with lenses having different thread sizes.
Care:
