TIFFEN 405DF12 Double Fog Filter Mfr 40.5MM 1/2

( Brand: Tiffen ), ( Manufacturer Part Number: 405DF12 ), ( Part Type: Filter ), ( Filter Shape: Circular ), ( Filter Color: Clear ), ( Item Height: 40.5mm ), ( Filter Effects: Fog ), ( Mount Fitting: Threaded ), ( Country Of Origin: Germany ), ( Filter Size: 40.5 Mm ), ( To Fit: Camera, Camcorder ), ( Item Weight: 0.09 Pounds )

Review TIFFEN New 40.5mm Double Fog 1/2 Filter Mfr #405df12

The Tiffen 405DF12 40.5mm Double Fog 1/2 filter is a versatile and high-quality photographic accessory designed to enhance the creative possibilities of both film and digital photographers. Crafted from premium optical glass, this 1/2-stop neutral density filter combines two distinct layers of subtle diffusion to produce a soft, dreamy effect that subtly blurs fine details while preserving the overall structure of your subject. Ideal for portraiture, landscape, and architectural photography, the Double Fog filter excels at creating a gentle bokeh effect, particularly when used with wide apertures or shallow depth of field techniques. Its 40.5mm diameter ensures compatibility with a wide range of lenses, from standard to telephoto, making it a practical addition to any photographer s kit. The filter s neutral density characteristic means it does not alter the color balance of your image, allowing you to maintain true-to-life tones while adding a subtle, artistic softness. Whether you re shooting through foliage, capturing the delicate textures of a sunset, or enhancing the mood of a portrait, the Tiffen 405DF12 delivers a refined, professional-grade diffusion that elevates your photography with a touch of ethereal elegance. Built to withstand frequent use, this filter is constructed with durable, scratch-resistant coatings and precision-ground edges, ensuring long-lasting performance and consistent results. Perfect for both studio and on-location shoots, the Tiffen Double Fog filter is a subtle yet powerful tool for photographers seeking to infuse their work with a soft, painterly quality without sacrificing sharpness or color fidelity.

The Tiffen 405DF12 (40.5mm) Double Fog 1/2 filter is a popular neutral density (ND) filter designed to reduce light while maintaining color accuracy. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Tiffen 405DF12 (Double Fog 1/2) Filter**

1. **Balanced Neutral Density (ND) Effect**

The Double Fog 1/2 filter provides a moderate reduction in light, allowing for longer exposures without drastically altering contrast. This makes it useful for smooth water effects, light trails, or shallow depth-of-field shots in bright conditions. The 1/2 stop reduction is subtle enough to avoid overpowering the scene while still being effective.

2. **Color Neutrality**

Tiffen is known for producing high-quality, color-accurate filters. The Double Fog series is designed to maintain a neutral gray tone, meaning it won t introduce unwanted color casts to your images. This is particularly important for landscapes, architecture, and other genres where color fidelity is critical.

3. **Versatility for Various Scenarios**

The 1/2 stop reduction is versatile. It can be used alone or stacked with other filters (e.g., polarizers or stronger ND filters) to achieve finer control over exposure. This makes it a practical choice for photographers who want flexibility without committing to a very strong ND filter.

4. **Durability and Build Quality**

Tiffen filters are generally well-built, with durable coatings and sturdy mounting rings. The 40.5mm size is a common thread size, making it compatible with many lens hoods and filter systems. The glass is also scratch-resistant, though care should still be taken to avoid damage.

5. **Cost-Effective for Its Strength**

Compared to stronger ND filters (e.g., 3 or 6 stops), the 1/2 stop reduction is relatively affordable. This makes it a budget-friendly option for photographers who want to experiment with ND effects without investing in a high-end filter system.

6. **Minimal Vignetting**

High-quality ND filters like the Tiffen Double Fog series are designed to minimize vignetting (darkening at the edges of the frame). This ensures that the entire image remains evenly exposed, which is important for wide-angle and landscape photography.

7. **Easy to Use with Other Filters**

The 1/2 stop reduction can be combined with a polarizer or other filters to achieve specific effects (e.g., reducing glare while also controlling exposure). This makes it a practical addition to an existing filter kit.

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### **Cons of the Tiffen 405DF12 (Double Fog 1/2) Filter**

1. **Limited Light Reduction for Extreme Conditions**

The 1/2 stop reduction is relatively weak. In very bright conditions (e.g., midday sun on a beach or waterfall), you may need to stack multiple filters or use a stronger ND filter to achieve the desired effect. This could require additional investment in a filter holder or larger filters.

2. **Not Ideal for Very Long Exposures**

While the filter can help with exposures of a few seconds, it s not strong enough for the very long exposures (e.g., 30 seconds) often used in astrophotography or smooth water effects in high-contrast scenes. For those purposes, a 3-stop or 6-stop ND filter would be more appropriate.

3. **Thread Size Limitations**

The 40.5mm thread size is standard but may not fit all lenses, especially those with larger front elements or custom thread sizes. If your lens requires a different size (e.g., 52mm, 58mm, or 67mm), you ll need an adapter ring, which can add bulk and potential vignetting.

4. **Potential for Ghosting or Flare**

Like all glass filters, the Tiffen Double Fog can introduce ghosting or flare in certain lighting conditions (e.g., backlit scenes or direct sunlight). While Tiffen s coatings are designed to minimize this, it s still a possibility, especially if the filter isn t perfectly aligned with the lens.

5. **No UV Protection**

The Double Fog filter is a pure ND filter and does not include UV protection. If you re shooting in environments with significant haze or dust (e.g., deserts, construction sites), a UV filter might still be beneficial as a first line of defense for your lens.

6. **Compatibility with Filter Holders**

If you use a filter holder system, the 1/2 stop reduction may not be as practical as a variable ND filter, which allows for real-time exposure adjustments. However, for most photographers, a fixed ND filter is sufficient.

7. **Potential for Overuse**

Some photographers may find that a 1/2 stop reduction is too subtle to notice a significant difference in their images, especially if they re already using other filters (e.g., polarizers). In such cases, the filter may not justify its cost or space in their kit.

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### **Conclusion**

The Tiffen 405DF12 (40.5mm) Double Fog 1/2 filter is a solid, versatile tool for photographers who need a modest reduction in light without sacrificing color accuracy. It excels in scenarios where you want to extend exposure times slightly such as creating subtle motion blur in water or light trails without overpowering the scene. Its neutral density and durability make it a reliable choice for landscapes, travel, and street photography.

However, it is not a replacement for stronger ND filters in extreme conditions. If you frequently shoot in very bright light or need longer exposures, you may eventually want to invest in a 3-stop or 6-stop ND filter. Additionally, if your lens requires a different thread size, you ll need to account for adapter rings, which could introduce vignetting or bulk.

For photographers who already have a polarizer or other filters and want a simple, affordable way to fine-tune their exposures, the Tiffen Double Fog 1/2 is a worthwhile addition. It strikes a good balance between functionality and cost, making it a practical choice for many situations.

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### **Recommendation**

- You want a neutral, color-accurate ND filter for subtle exposure control.

- You frequently shoot in bright conditions but don t need extreme light reduction.

- You already own a polarizer or other filters and want to expand your kit without overcommitting.

- You prefer fixed ND filters over variable ones and don t mind stacking filters if needed.

- You re on a budget and want a high-quality, durable filter without paying for excessive stops.

- You need very long exposures (e.g., 10 seconds) for smooth water or light trails.

- Your lens requires a different thread size, and you re concerned about vignetting or bulk.

- You frequently shoot in harsh lighting conditions where a 1/2 stop isn t enough.

- You prefer the convenience of a variable ND filter for real-time adjustments.

The Tiffen 405DF12 Double Fog 1/2 filter is a **highly recommended purchase** for photographers who want a reliable, neutral ND filter for moderate exposure control. It s a practical addition to any kit and offers excellent value for its price. If you re unsure, test it in your workflow before committing to stronger ND filters.

Details:

Shipping Handling Information. The Tiffen Double Fog 1/2 Filter simulates the effects of natural fog or mist by creating a soft glow around highlights and lowering overall contrast scene. Tiffen filters are made using Color Core technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to tolerance 1/10,000th an inch. Wood en Camera, Small HD.

New Tiffen 40.5mm Double Fog 1/2 Filter MFR #405DF12. Schneider, Tiffen and more. Trans Film is specialized in Sales, Service, Rentals of Camera Support Equipment such as Sachet, O'Connor, Vintner, Carton, Miller, Libel, Manfred, Arr, Mitchell, Trade, Anton Bauer, Core, Swot. Provides a fog-like effect with dramatically lowered overall contrast.

Does not require exposure compensation to make up for filter effect. When compared to the standard Fog filter, this filter places greater emphasis on lowering contrast while maintaining sharpness and minimizing effects of flare. Maintains greater sharpness and is less affected by highlight-flare than the standard Fog filter. The 1/2 density provides less fog effect that the 1 but more than 1/4.

part #: 405df12 prices

• $55.90-$69.99

specifications filtecam:

• brand: Tiffen
• mpn: 405df12
• part type: Filter
• filter shape: Circular
• filter color: Clear
• item height: 40.5mm
• filter effects: Fog
• mount fitting: Threaded
• country of origin: Germany
• filter size: 40.5 Mm
• to fit: Camera, Camcorder
• item weight: 0.09 Pounds

payments filtecam:

• wallet: Apple-pay
• other
• credit card: Visa

offer filtecam:

• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: February 13, 2026

returns filtecam:

• time: 30 Days
• policy: Returns Accepted
• method: Money back
• paid by: Buyer

general filtecam:

• condition: New
• Cameras Photo > Lenses Filters > Filters

seller filtecam:

• rating: 99.8%
• # reviews: 56484
• city: North Hollywood, California

shipping filtecam:

• service: USPS Ground Advantage, FedEx Standard Overnight
• type: Fixed
• cost: $0.00
• carrier: USPS, FedEx
• transit: 6-12 Days
• class: Standard, One-day

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