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Product Features Comparison with Super DHG Series

Next Generation Filters for Digital SLR Photography EXUS Series. Product Features Comparison with Super DHG Series. Marumi Optical Co., Ltd. Tokyo, Japan. Argraph Corporation Carlstadt, NJ 07072. 1.

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Product Features Comparison with Super DHG Series

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  1. Next Generation Filters for Digital SLR Photography EXUS Series Product Features Comparison with Super DHG Series Marumi Optical Co., Ltd.Tokyo, Japan Argraph CorporationCarlstadt, NJ 07072 1

  2. Digital cameras are constantly advancing. Today, models equipped with high-tech features such as 35mm full-frame digital SLR image sensor are within reach of average consumers. In other words, the age of high-quality, high-performance digital cameras is here. The new EXUS Series – the flagship of Marumi digital camera filters features exceptional performance and functions that are ready to meet and exceed the demands of the latest digital SLR cameras. The Background 2

  3. What is “EXUS” ? EX = Experience, Excellence,… Marumi has over 60 years experience specializing in excellentfilter technology and manufacturing U = Ultimate, Ultra,… Marumi developed the ultimate filter S = Spec., … with full specifications. EXUS features the ultimate specifications based on Marumi’s expertise and technology. 3

  4. EXUS Lens Protect (LP) 5

  5. Key Features EXUS Lens Protect New ● New Antistatic Coating Repels dust and dirt Improved ● Water & Oil Repellent Water and oil spots can be easily wiped off Improved ● Ultra Low Reflection Less than 0.3% Blackened outer rim of lens minimizes internal reflections Improved ● Flatness & Strength (Lens) t=2.0mm (Super DHG t=1.3mm) securely fixed with new slim mount ● New Slim Ultra Low Reflection Frame Light-shielding grooves, satin finish, knurls on the ring New 6

  6. EXUS LP: Filter Glass • Material: White glass (B270), same as the Super DHG Series • Thickness: 1.3mm ±0.1mm  2.0mm±0.1mmFlatness  will be stabilized by increasing the lens thickness (precision quality assured). Lens Thickness Comparison EXUS LP DHG Super LP Laser interferometer measuring (transmitted wavefront) • As pioneered on Marumi’s existing DHG Series, black-ink is coated on the entire outer rim of the lens. 7

  7. EXUS LP: Transmission Characteristics Transmission comparison DHG Super LP vs. EXUS LP Measurement date: 12/27/2012 EXUS LP DHG Super LP Transmission Rate Transmission (%) Wavelength (nm) 8

  8. EXUS LP: Achieving Ultra-low Reflection Reflection ratio comparison DHG Super LP vs. EXUS LP Measurement date: 12/27/2012 Reflection ratio (%) DHG Super LP Wavelength (nm) EXUS LP Surface ① EXUS LP Surface ② DHG Super LP Surface ① DHG Super LP Surface ② 9

  9. EXUS LP: Improved to Less than 0.3% EXUS LP: Achieving Ultra-low Reflection Reflection Rate Reflection ratio comparison DHG Super LP vs. EXUS LP Measurement date: 12/27/2012 Average reflection ratio of wavelength band between 420 and 680 nm — Less than 0.6% for the DHG Super Series Reflection ratio (%) DHG Super LP EXUS LP Wavelength (nm) EXUS LP Surface ① EXUS LP Surface ② DHG Super LP Surface ① DHG Super LP Surface ② 10

  10. Verification method using charged voltage measurement (amount of electrostatic) Lens holder Electrostatic measurement device EXUS LP DHG Super LP EXUS LP: Water/Oil-repellent Coating with Antistatic Function (Patent pending) Verification method using Styrofoam Insert lenses in a pool of Styrofoam. Stir lenses and remove. 11

  11. DHG Super LP EXUS LP EXUS LP: Water-repellent Coating with Antistatic Function (ASC coating for LPs) (Patent pending) EXUS Anti- Static Coating Antistatic performance comparison Super DHG LP vs. EXUS LP Room temp.: 22ºC / Humidity: 30% RH Measurement date: 1/7/2013 EXUS LP Surface ① EXUS LP Surface ② DHG Super LP Surface ① DHG Super LP Surface ② (Number of measurement attempts) Charged voltage (kV) Measuring method: Rub the lens surface back and forth 20 times with a folded tissue paper; and measure charged voltage using electrostatic measurement device (SIMCO model FMX-003). 12

  12. Pressure lock assures lens does not come loose Easy for lens to come loose Lens ring Screw lock with adhesive (Locktight) Spring EXUS LP: New Ultra-low Reflective Frame • Even though the lens thickness has increased to 2mm, thickness of the frame remains virtually the same as the existing DHG Super. Frame Thickness Comparison EXUS LP DHG Super LP • Redesigned and improved the frame structure from a conventional spring-mount to a patented new glass securing system. Conventional Spring Method EXUS LP: Security locking system with the double lens rings 13

  13. Light-blocking ridges (three grooves) Light-blocking ridge EXUS LP: New Ultra-low Reflective Frame • Further eliminates ghosting and flaring by adding light-blocking ridges to the frame. (Patent pending) Blue line indicates where the black-ink coating is applied on the lens’ outer rim. Conventional ringwith no light-blocking ridges EXUS LP with light blocking ridges 14

  14. Circular Polarizing Filter (C-PL) 15

  15. Key Features EXUS Circular PL New ● New Antistatic Coating Repels dust and dirt Improved ● Water & Oil Repellent Water and oil spots can be easily wiped off Improved ● Ultra Low Reflection Less than 0.6% Blackened outer rim of lens minimizes internal reflections New ● High Transmission Polarizer Transmission Rate 30% higher than conventional polarizers New ● Teflon Coated Male Threads For smooth attaching and detaching on camera lens New ● New Slim Ultra Low Refection Frame Light-shielding grooves, satin finish, knurls on the ring 16

  16. EXUS C-PL: Filter Glass • Material: Layer of float glass + high-transmission polarizing film + 1/4λ retarder • Thickness: 2.55mm ±0.1mm 2.0mm±0.1mm Adopted thinner lens capable of maintaining flatness. Lens Thickness Comparison EXUS C-PL Super DHG C-PL Laser interferometer measuring (transmitted wavefront) • As pioneered on Marumi’s existing DHG Series, black-ink is coated on the entireouter rim of the lens. 17

  17. EXUS C-PL: Transmission Characteristics Transmission comparison Super DHG C-PL vs. EXUS C-PL Measurement date: 12/27/2012 High Transmission Transmission (%) Super DHGC-PL Wavelength (nm) EXUS C-PL Max. Transmission EXUS C-PL Min. Transmission DHG Super C-PL Average Transmission EXUS C-PL Average Transmission DHG Super C-PL Max. Transmission DHG Super C-PL Min. Transmission 18

  18. EXUS C-PL: Transmission Characteristics Transmission comparison DHG Super C-PL vs. EXUS C-PL Measurement date: 12/27/2012 High Transmission EXUS C-PL Transmission (%) Super DHG C-PL Wavelength (nm) EXUS C-PL Max. Transmission EXUS C-PL Min. Transmission DHG Super C-PL Average Transmission EXUS C-PL Average Transmission DHG Super C-PL Max. Transmission DHG Super C-PL Min. Transmission 19

  19. Average transmittance at 450nm, 550nm, and 650nm on the existing model, DHG Super C-PL: 33.5% Average transmittance at 450nm, 550nm, and 650nm on the new EXUS C-PL: 45.5% EXUS C-PL: Transmission Characteristics High Transmission Transmission comparison Super DHG C-PL vs. EXUS C-PL Measurement date: 12/27/2012 EXUS C-PL More than 30% increasecompared to conventional model Super DHG C-PL Wavelength (nm) EXUS C-PL Max. Transmission EXUS C-PL Min. Transmission DHG Super C-PL Average Transmission EXUS C-PL Average Transmission DHG Super C-PL Max. Transmission DHG Super C-PL Min. Transmission 20

  20. EXUS C-PL: Reflection Rate – Low-reflective Coating Low Reflection Reflection ratio comparison DHG Super C-PL vs. EXUS C-PL Measurement date: 12/27/2012 Super DHG C-PL Reflection ratio (%) Wavelength (nm) EXUS C-PL Incidence Side EXUS C-PL Lens Side DHG Super C-PL Incidence Side DHG Super C-PL Lens Side 21

  21. EXUS C-PL: Reflection Rate – Low-reflective Coating Low Reflection Reflection ratio comparison Super DHG C-PL vs. EXUS C-PL Measurement date: 12/27/2012 Average reflection rate at wavelength band between 420 and 680nm: Less than 0.6% maintained Super DHG C-PL Reflection ratio (%) EXUS C-PL Wavelength (nm) EXUS C-PL Incidence Side EXUS C-PL Lens Side DHG Super C-PL Incidence Side DHG Super C-PL Lens Side 22

  22. Front frame Front frame Back frame Back frame EXUS C-PL: New Ultra-low Reflective Frame • Frame thickness: Reduced from 7.0mm to 6.5mm Frame Thickness Comparison EXUS C-PL DHG Super C-PL • Basic frame structure is the same but optimized the form to make the frame slimmer Super DHG C-PL EXUS C-PL 25

  23. Light-blocking ridges Light-blocking ridge EXUS C-PL: New Ultra-low Reflective Frame • Further eliminates ghosting and flaring by adding light-blocking ridges to the frame (Patent pending) Blue line indicates where the black-ink coating is applied on the lens’ outer rim. Conventional C-PLwith no light-blocking lines EXUS C-PL with light blocking lines 26

  24. EXUS C-PL: New Ultra-low Reflective Frame • Applying Teflon coating around male threads improves surface lubricating performance, enabling smoother attaching and detaching of the filter and the lens. (Patent pending) Teflon coating on Male threads Teflon coating is applied to the area shaded in blue. Black is darker compared to other sections (although hard to tell it by looking at) 27

  25. EXUS Package Design EXUS Lens Protect 28

  26. EXUS Package Design EXUS Circular PL 29

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