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  3. KASE CPL-III-77

KASE CPL-III-77 Screw Smp Filter Multicoated Tempered 840337507038 Cpl Hardened Optical

Cpl-iii-77 Kase Cpl Iii Screw-in Slim Smp Filter Multicoated Tempered Hardened Optical G

( Brand: Kase ), ( Manufacturer Part Number: CPL-III-77 ), ( Part Type: Filter ), ( UPC: 840337507038 ), ( Size: 77mm )

Review KASE Cpl Screw in Slim Smp Filter Multicoated Tempered Hardened Optical

The **Kase CPL-III-77 CPL Screw-In SMP Filter** is a high-performance, precision-engineered optical filter designed for professional photographers, videographers, and content creators who demand the utmost clarity, color accuracy, and durability in their imaging equipment. Crafted from **tempered and hardened optical-grade glass**, this filter is built to withstand rigorous use while maintaining exceptional optical integrity, ensuring sharp, vibrant, and distortion-free results across a wide range of shooting conditions. The **multi-coated surface** incorporates advanced proprietary coatings that minimize reflections, flare, and ghosting, allowing light to pass through with maximum efficiency and purity. This screw-in design, compatible with a **77mm thread**, makes it an ideal addition to DSLR, mirrorless, and cine lenses, seamlessly integrating into existing filter systems without compromising image quality.

What truly sets the CPL-III-77 apart is its **polarizing capability**, which effectively reduces glare, reflections, and unwanted light scattering particularly useful in outdoor, water, or urban environments where harsh light and reflections can degrade image quality. The **circular polarizer (CPL) technology** ensures consistent performance across autofocus systems, eliminating the need for manual adjustments that can occur with linear polarizers. The filter s **smooth, low-profile design** minimizes vignetting, even at wide apertures, while its **durable metal frame** provides stability and resistance to warping or bending over time. Whether used to enhance skies, deepen colors, or eliminate distracting reflections, this filter delivers professional-grade results with every shot.

Beyond its technical superiority, the CPL-III-77 embodies Kase s commitment to innovation and reliability, making it a staple for photographers who prioritize both performance and longevity. Its **tempered and hardened construction** ensures resistance to scratches and impacts, while the **precision-machined threading** guarantees a secure, leak-proof fit on lenses. Whether paired with a wide-angle lens for landscape photography or a telephoto for wildlife, this filter consistently delivers crisp, high-contrast images with natural color rendition. For those seeking a filter that elevates their visual storytelling without sacrificing durability or optical excellence, the Kase CPL-III-77 CPL Screw-In SMP Filter is an indispensable tool.

The **Kase CPL-III-77 (Screw-In, SMP Filter, Multicoated, Tempered, Hardened Optical)** is a high-end circular polarizer designed for professional photography, particularly for use with medium format and large sensor DSLRs. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Super Multi-Purpose (SMP) Technology**

The SMP coating allows the filter to function as a **circular polarizer (CPL), neutral density (ND), and gradient ND** in a single unit. This versatility eliminates the need to carry multiple filters, saving space and cost. The SMP coating is designed to work seamlessly with modern autofocus systems, reducing the risk of autofocus issues that can occur with traditional CPLs.

2. **High-Quality Optical Glass**

The filter is made from **tempered, hardened optical glass**, which ensures durability and resistance to scratches, warping, and thermal stress. This makes it suitable for demanding professional use, including outdoor shoots where filters are exposed to harsh conditions.

3. **Multicoated for Maximum Clarity**

The **multicoated surfaces** minimize reflections and flare, resulting in sharper images with improved contrast and color fidelity. This is particularly beneficial in bright lighting conditions or when shooting through glass (e.g., architecture or underwater photography).

4. **Screw-In Design for Medium Format and Large Sensors**

The CPL-III-77 is designed to fit **medium format lenses (e.g., Hasselblad, Mamiya, Pentax 645)** and large-format DSLRs (e.g., Canon 5DS R, Nikon D850). This makes it ideal for photographers who work with these systems and require precise, high-quality polarizing effects without vignetting or distortion.

5. **Reduced Vignetting and Distortion**

Unlike some polarizers that cause noticeable vignetting or softening at the edges, the CPL-III-77 is engineered to minimize these issues, providing a more natural look across the entire frame.

6. **Easy to Use with SMP Functionality**

The ability to switch between CPL, ND, and gradient ND modes on the fly is a significant advantage. For example, you can use it as a **ND filter for long exposures** or a **gradient ND for balancing exposure between sky and foreground** without changing filters.

7. **Professional-Grade Build**

Kase filters are known for their robust construction, including **metal filter rings** that prevent slippage and ensure a secure fit on lenses. The hardened glass also resists damage from drops or impacts.

8. **Compatibility with Autofocus Systems**

Because it is designed for modern autofocus cameras, the CPL-III-77 is less likely to interfere with autofocus performance compared to older-style polarizers.

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### **Cons**

1. **High Cost**

The CPL-III-77 is an **expensive filter**, especially when compared to basic CPLs or even other SMP filters from competitors like B W or Lee. The price reflects its professional-grade quality, but it may not be justified for hobbyists or casual photographers.

2. **Limited to Specific Lens Sizes**

While it fits medium format and large DSLR lenses, it is **not compatible with full-frame or APS-C lenses** unless you have the appropriate adapter (which may not be available for all sizes). This limits its usefulness for photographers who primarily shoot with smaller sensors.

3. **SMP Coating May Not Be Necessary for All Shooters**

If you rarely need ND or gradient ND filters, the versatility of the SMP coating may not be worth the investment. Some photographers prefer dedicated filters for specific tasks (e.g., a separate ND filter for long exposures) because they offer more control and consistency.

4. **Potential for Overkill**

For photographers who primarily shoot in controlled environments (e.g., studio) or with limited polarizing needs, a **basic CPL** (e.g., a 2-stop CPL from a budget brand) may suffice. The CPL-III-77 s advanced features may not be necessary for every use case.

5. **Weight and Bulk**

As a screw-in filter, it adds weight and bulk to your lens, which can be noticeable when carrying multiple lenses or shooting handheld. This may not be an issue for tripod-based work but could be a consideration for travel or street photography.

6. **Learning Curve for SMP Functionality**

While the SMP coating is convenient, it may require some experimentation to understand how to achieve the desired effects (e.g., the exact ND or gradient strength). Beginners might find it easier to start with dedicated filters.

7. **Potential for Autofocus Issues in Some Cases**

Although SMP filters are generally designed to work with autofocus, there are rare instances where certain camera/lens combinations may experience minor autofocus hesitation. This is more common with older or less expensive filters.

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### **Conclusion**

The **Kase CPL-III-77** is one of the best **medium format and large sensor circular polarizers** available, offering unmatched versatility with its SMP coating, superior optical quality, and durability. It is an excellent choice for **professional photographers** who work with medium format cameras, require high-quality polarizing effects, and want the flexibility of an all-in-one filter. The SMP technology alone justifies the cost for those who frequently need ND or gradient ND filters without carrying extras.

However, for **hobbyists, full-frame shooters, or those with limited polarizing needs**, the high price and specialized use case may not make it the best investment. In such cases, a **basic CPL or a dedicated ND filter** might be more practical.

If you are a **medium format photographer, landscape shooter, or professional who values durability and versatility**, the CPL-III-77 is a **highly recommended** purchase. For everyone else, weigh the cost against your specific needs before committing.

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### **Final Recommendation**

**Buy the Kase CPL-III-77 if:**

- You shoot with **medium format or large sensor DSLRs**.

- You frequently need **polarizing, ND, or gradient ND effects** and want a single filter to handle all three.

- You prioritize **durability, optical clarity, and professional-grade performance**.

- You are willing to invest in a **premium filter** that will last for years.

**Avoid or consider alternatives if:**

- You shoot primarily with **full-frame or APS-C lenses** (unless you have the right adapter).

- You rarely use **ND or gradient ND filters** and prefer dedicated filters for better control.

- You are on a **tight budget** and can achieve similar results with a more affordable CPL.

- You prefer **brands with a longer warranty or more widespread support** (e.g., B W, Lee, or Hoya).

For most **professional medium format photographers**, the CPL-III-77 is a **worthwhile investment** that will enhance image quality and simplify workflow. For others, a **basic CPL or a separate ND filter** may be a more cost-effective solution.

Details:

Metal Filter Frame: 6063 Aluminum Alloy. However, this will not affect the shipping times. Innovative Coating Technology, 0.1% Ultra Low Reflection, Control Ghosting Glare. Front Frame is Threaded to Allow Filter Stacking / Hoods Caps.

Super Thin Frame: 5.3mm. Scratch Resistant. Front Frame Rotates to Vary the Effect. Thickness: 5.3mm.

Ideal for Wide Angle Lenses. Water Oil-Repellent. Includes storage Case. Eliminates Glare and Flare.

part #: cpliii77 price

  • $135.97

specifications filtecam:

  • brand: Kase
  • mpn: Cpl-iii-77
  • part type: Filter
  • upc: 840337507038
  • size: 77mm

payments filtecam:

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seller filtecam:

  • rating: 100.0%
  • # reviews: 53188
  • city: Within USA

returns filtecam:

  • policy: Returns Accepted
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  • time: 30 Days

general filtecam:

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

offer filtecam:

  • availability: In Stock
  • started: February 17, 2026
  • options: Ship-to-home
  • sold: 0

shipping filtecam:

  • class: Standard
  • transit: 2-6 Days
  • service: Standard
  • cost: $0.00
  • type: Fixed
part type: filter, size: 77mm,
category: camera & photo > cameras photo > lenses filters > filters, sku: 15196398587741782,
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