The Canon EF 300mm f/2.8L IS II USM Telephoto Lens is the perfect choice for nature, wildlife and sports photographers. The lens is extremely light for its class and the Image Stabilization system offers up to four extra stops of performance. The EF 300mm f/2.8L IS II USM features Fluorite optics that deliver sharper images with less chromatic aberration, and Fluorine coating that keeps soiling, smears and fingerprints to a minimum. With a super-telephoto focal length, fast aperture and outstanding image quality, this lens provides reliability and exceptional results expected from the Canon line of L lenses.

With a third Image Stabilization mode (Mode 3) that activates IS only when the shutter button is fully pressed, and giving the equivalent effect of a shutter speed four stops faster, the EF 300mm f/2.8L IS II USM allows for easy panning and is ideally positioned for professional action photography. Fast, quiet Auto Focusing (AF) is provided by a ring-type fast Ultra-Sonic Motor (USM), dedicated AF algorithms and a high-speed CPU, which offers quick and accurate focusing during shooting. Photographers can also utilize full-time manual focusing functionality, which enables the adjustment and fine-tuning of focus even when the AF system is activated, providing even greater control over image capture. The Power Focus mode aids focusing during video shooting, allowing the photographer to smoothly adjust focus during filming by twisting the focus recall ring. With a security slot for wire-type security locks, buttons and switches are redesigned for intuitive, deliberate operation, and dust and water sealing keeps the lens functioning flawlessly in even the most challenging environments.

    A third Image Stabilization mode (Mode 3) activates IS only when the shutter button is fully pressed, and gives the equivalent effect of a shutter speed four stops faster

    The Power Focus mode aids focusing during video shooting, allowing the photographer to smoothly adjust focus during filming by twisting the focus recall ring

    Fast, quiet Auto Focusing (AF) is provided by a ring-type USM, dedicated AF algorithms and a high-speed CPU, which offers quick and accurate focusing during shooting

    At 5.18 lbs (2350g) the lens is extremely light for its class

    Fluorite optics deliver sharper images with less chromatic aberration, and Fluorine coating keeps soiling, smears and fingerprints to a minimum

    Focus adjustment is with the inner focusing system, with focusing cam

    Full-time manual focus for instant switching from AF to Manual operation

    Lens has a security slot for wire-type locks to prevent theft
    Product Highlights

        L-Series Optics
        Optical Image Stabilization - 3 Modes
        Fast Ultra-Sonic Motor (USM) Autofocus
        Full-time Manual Focusing Functionality
        High-speed CPU
        Autofocus Stop Feature
        Dust and Water Resistant
        Fluorite Glass for Improved Quality
        Protective Fluorine Lens Coating
        Security Slot for Wire-Type Locks

This large-aperture telephoto zoom lens (fixed F stop type), provides f/2.0 aperture through the entire zoom range. It is equivalent to 70-200mm on a 35mm camera, and covers from medium-telephoto range of natural angles to telephoto area with a compressed perspective effect. Its fast shutter-speeds and beautifully soft out-of-focus image behind the main subject are an ideal for portrait, theatrical and sports shooting under the low-light. Luxurious optical glass elements, such as, four ED lenses and one super ED lens are used to give the highest image quality with optimal resolution and contrast.
Product Highlights

    For 4/3 Format Cameras
    Super High Grade Series
    Dust & Splash Proof Construction

Phody Optics Co.,Ltd. could manufacture plano-convex cylindrical lenses, plano-concave cylindrical lenses, bi-convex cylindrical lenses, bi-concave cylindrical lenses, meniscus cylindrical lenses, long cylindrical lenses, Special cylindrical lenses and etc.

The details of cylindrical lenses are as following:
Material: optical glass, fused silica, CaF2 and etc.
Size: 2mm~300mm 
Focal Length:+/-4mm~+/-5000mm
Surface Quality: 60-40,40/20 or 20/10 scratch and dig
Centration:< 3 arc minutes
Clear Aperture:>90%
Chamfer 0.25mm at 45 degree typical
Coating:AR coating or Customer design

Phody Optics Co.,Ltd. is fully committed to designing and making all kinds of optical components for customer special use.

Spherical Ball Lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling. Larger spheres are easier to handle and ease the sensitivity of translational alignment. However, smaller spheres has the benefit of fitting into smaller packages.
Material BK7,fused silica,Sapphire or custom materials
Surface Quality 85%
Diameter Minimum 1mm
Diameter Tolerance +/-0.005mm
Surface Quality 60/40 Scratch/Di

We concentrates on the development and the production of following product:
* Optical component series:
  cylindrical lenses,spherical lenses,prisms,mirrors,optical windows,waveplates,beamsplitters,filters,high accuracy optical component.
* Optical Crystal series:
  CaF2,MgF2,LiF,ZnSe,ZnS,GaAs,Si,Ge,Sapphire and other infrared optical crystal components.
* Optical coatings series:
  Antireflective coating(AR),partial reflective coating(PR),metallic high reflective coating(MHR),dielectric high reflective coating(DHR),various optical coatings.
* Optical lens series:
  We can produce various optical lens according to the customer needs.
  With the principle of"superior quality,perfect service,good reputation".We have confidence in quality and professional service as reliable supplier and partner in ptronics industry. We are looking forward to establishing a sincere and promising business relationship with you in the near future!

Color Glass Filters

Cut-off type colored optical filter glass

The glass is named based on spectral characteristic of which is represented by the wavelength transmission limit. For example, if the transmission limit of glass is 490nm,then it is named as JB490.There are five groups and 35types glasses.

Selective absorption colored optical filter glass

This part of the glasses can be divided into 14 kinds and 78 types based on the color and application in this catalogue. The types are arranged in accordance with serial numbers, which have no special meaning.

Neutral filter glass

They are named based on the average transmissivity characteristics in 400nm to 700nm wavelength with 2mmthick sampler is 70%,then it\'s named as ZAB70.And there are ten types of glasses in this part. But three types of them(ZAB65,ZAB30,ZAB5)are tested in 440nm-660nm wavelength.

Color Glass Filters

Cut-off type colored optical filter glass

The glass is named based on spectral characteristic of which is represented by the wavelength transmission limit. For example, if the transmission limit of glass is 490nm,then it is named as JB490.There are five groups and 35types glasses.

Selective absorption colored optical filter glass

This part of the glasses can be divided into 14 kinds and 78 types based on the color and application in this catalogue. The types are arranged in accordance with serial numbers, which have no special meaning.

Neutral filter glass

They are named based on the average transmissivity characteristics in 400nm to 700nm wavelength with 2mmthick sampler is 70%,then it\'s named as ZAB70.And there are ten types of glasses in this part. But three types of them(ZAB65,ZAB30,ZAB5)are tested in 440nm-660nm wavelength.

Meniscus Lenses

Positive meniscus lenses is convex-concave lens thicker at the center than at the edges. They are used to minimize spherical aberration. When used in combination with another lens, it’s will shorten the focal length, and increase the NA of system.

Negative meniscus lenses is convex-concave lens thinner at the center than edges. They  increase the divergence of the beam without introducing any significant spherical aberration. When used in combination with another lens, they will increase the focal length, and decrease the NA of the system.

Specifications:

Specifications:

Rod lenses

Rod lenses is used in the fields of medical, electronic, information, agriculture, communication and etc.

High Precision Rod Lenses
Specifications:
Material: BK7 grade A optical glass or Fused Silica
Diameter: from 1.5mm to 25.0mm
Diameter Tolerance:±0.002mm
Length: from 1.0mm to 80.0mm
Length Tolerance:±0.02mm
Surface Figure: lambda/4@632.8nm
Surface Quality:20-10 scratch and dig

Standard Rod Lenses
Specifications:
Material: BK7 grade A optical glass or Fused Silica
Diameter: from 1.5mm to 25.0mm
Diameter Tolerance:±0.05mm
Length: from 1.0mm to 80.0mm
Length Tolerance:±0.1mm
Surface Figure: lambda/4@632.8nm
Surface Quality:60-40 scratch and dig

Bi-Concave Lenses

Bi-Concave Lenses is like the Plano-Concave lenses in that they are used to produce divergent light. The Bi-Concave is best used when the input beam is converging.

Plano-Convex Lenses

Plano-Convex Lenses are best used where one conjugate point (object distance S or image distance S\' ) is more than five times the other. This lens shape is near best-form for either focusing collimated light or for collimating a point source.

Supply BK7 Plano-concave lens < /SPAN>

BK7 Plano-concave lens

 EFL:-10mm---  -1000mm

 Dia:6.00mm¡ª75.00mm 

 Material: BK7(China K9) 

 S/D:40/20

 Centration:<3arc min  

 Customer design

Supply BK7 Bi-convex lens

BK7 Bi-convex lens

 EFL:10mm---1000mm

 Dia:6.00mm¡ª75.00mm 

 Material: BK7(China K9) 

 S/D:40/20

 Centration:<3arc min  

 Customer design

Supply BK7 Bi-concave lens

BK7 Bi-concave lens

 EFL:-10mm-- -1000mm

 Dia:6.00mm¡ª75.00mm 

 Material: BK7(China K9) 

 S/D:40/20

 Centration:<3arc min  

 Customer design 

Supply CaF2 Plano-convex lens

CaF2 Plano-convex lens

 EFL:10mm---1000mm

 Dia:6mm¡ª50.8mm 

 Material: CaF2 single crystal& nbsp;

 S/D:80/50

 Centration:<3arc min  

 Customer design

Supply Precision Optical Lens

Main productions: 

   Cylindrical lens(Aspherical& nbsp;,Achromatics)

   Sphericallens(Achromatics Do ublet lens)

   Windows

   Prisms(Right Angle,Wedges)

Customer design

Supply Achromatics Doublet Lens

Achromatics Doublet Lens

  EFL:+/-5mm ------+/-1000mm< SPAN style=\"FONT-SIZE: 10.5pt; FONT-FAMILY: \'Times New Roman\'; mso-spacerun: \'yes\'\">

  Dia:4mm----75mm

  AR-coating

  Customer design

Supply UV-grade fused silica Pl ano-convex lens   

UV-grade fused silica Plano-convex&n bsp;lens

 EFL:10mm---1000mm

 Dia:6.00mm¡ª75.00mm 

 Material: UV-grade fused silic a 

 S/D:40/20

 Centration:<3arc min  

 Customer design

Supply Precision Optical Lens

Main productions: 

   Cylindrical lens(Aspherical& nbsp;,Achromatics)

   Sphericallens(Achromatics Do ublet lens)

   Windows

   Prisms(Right Angle,Wedges)

Customer design

Supply Achromatics Doublet Lens

Achromatics Doublet Lens

  EFL:+/-5mm ------+/-1000mm< SPAN style=\"FONT-SIZE: 10.5pt; FONT-FAMILY: \'Times New Roman\'; mso-spacerun: \'yes\'\">

  Dia:4mm----75mm

  AR-coating

  Customer design

Supply UV-grade fused silica Pl ano-convex lens   

UV-grade fused silica Plano-convex&n bsp;lens

 EFL:10mm---1000mm

 Dia:6.00mm¡ª75.00mm 

 Material: UV-grade fused silic a 

 S/D:40/20

 Centration:<3arc min  

 Customer design

Supply UV-grade fused silica Pl ano-concave lens

UV-grade fused silica Plano-concave& nbsp;lens

 EFL:-10mm---  -1000mm

 Dia:6.00mm¡ª75.00mm 

 Material: UV-grade fused silic a 

 S/D:40/20

 Centration:<3arc min  

 Customer design