The Male Side (To The Side Of The Camera ) : 58mm | The Female Side (To The Side Of The Lens) :55mm | Made of metal,Color :Black | Suitable For Access a wider variaty of filters, adapters, hoods and more... | Package including: Filter ring adapter X 1

The Male Side (To The Side for the lens ) : 69mm | The Female Side (To The Side for the lens filter ) :67mm | Made of metal,Color :Black | Suitable For Access a wider variaty of filters, adapters, hoods and more... | Package including: Filter ring adapter X 1

The Male Side (To The Side Of The Camera ) : 77mm | The Female Side (To The Side Of The Lens) :58mm | Made of metal,Color :Black | Suitable For Access a wider variaty of filters, adapters, hoods and more... | Package including: Filter ring adapter X 1

This remote control supports focus control,IRIS control ,zoom control ,and start/stop recording functions for Panasonic camcorder. | It can be fixed on 10mm to 30mm diameter rod,claw is with rubber cushion to prevent slipping.Coiled cable length is stretchable to max 70cm/27.55inch. | By pressing the red button to start / stop video recording,easy operation button for W / T control, one knob for controlling focus and one knob for controlling iris,eliminating camera shake and improving image quality. Zoom speed can be adjusted by changing finger strength. | No battery required. | Suitable for Panasonic camcorder:HC-X1 HC-PV100 AG-AC30 AG-UX90mc AG-UX180 HC-X1000 AG-AC90 AU-EVA1 AC90MC DVC33 DVC63 DVC15 180 180A 180B AG-HMC43MC AG-FC100MC ac130MC hmc153MC ac160MC 173MC dvx200MC AG-HVX203AMC 260MC 265MC 285MC PX298MC PX280 AG130 AG160 HVX200 HVX203 MDH3 z10000,etc.

This remote control supports zoom control ,IRIS control and start/stop recording functions for Sony camcorder for Panasonic with 2.5 mm LANC or REMOTE terminal. | It can be fixed on 9mm to 30mm diameter rod,claw is with rubber cushion to prevent slipping.Coiled cable length is stretchable to max 70cm/27.55inch. | By pressing the red button to start / stop video recording,easy operation button for W / T control, eliminating camera shake and improving image quality. Zoom speed can be adjusted by changing finger strength.Big knob for IRIS adjusting (only works with lens with G mark) | No battery required. | Toggle switch for quick switching for Sony and for Panasonic camcorder.Suitable for Sony PXW-z90 Z100 Z150 z190 Z1C Z5C Z7C FS5 FS7 FS7M2 FS7H FS700 FX6 FX9 FX1000E FX1E FX7E VX2000E 2100E 2200E AX2000E 190p 198p HXR-MC2000E HXR-MC2500 A1C V1C HD1000C 1500C 2500c 250P PD100AP PDX10P 900E 940E 950E HXR-NX5P NX3 NX5r NX70C NX80 NX5C NX3C NX100 NX200 ax700 AX1E PXW-X160 PXW-X180 PXW-Z280 EA50,etc,for Panasonic cx200m HC-X1500gk,etc.

This remote control supports zoom control and start/stop recording functions for Sony camcorder for Panasonic with 2.5 mm LANC or REMOTE terminal. | It can be fixed on 10mm to 30mm diameter rod. | By pressing the red button to start / stop video recording,easy operation button for W / T control, eliminating camera shake and improving image quality. Zoom speed can be adjusted by changing finger strength. | No battery required. | Toggle switch for quick switching for Sony and for Panasonic camcorder.

It is specially designed for DSLR and Mirrorless Camera mounting on Zhiyun Crane 2 3 LAB Weebill 2 3 Weebill-S Gimbal Stabilizer. | It is also compatible with Manfrotto 501HDV 503HDV 701HDV MH055M0-Q5 Ball Head. | With 1/4"-20 screw for DSLR mirrorless camera,1/4" screw can move by 65mm/2.56in.D-ring lock at bottom for easily attaching and detaching camera.1/4"-20 thread hole by sides for more extension. | Scale by sides for easy position adjustment.Size:95mm*50mm*15mm / 3.7in*19in*0.6in,weight:65g/0.14lb.Soft cushion at bottom protect camera from scratching. | Made of aluminum alloy with CNC machine.surface oxidation treatment.Package includes: 1 x QR plate,1x 1/4"-20 screw

It is specially designed for Sony Canon Nikon DSLR Mirrorless Camera to mounting on DJI Ronin RS2 RSC2 RS3 RS3PRO RS3 mini RS3 Pro ,RS4 and RS4 Pro Gimbal Stabilizer. | With 1/4"-20 screw for DSLR mirrorless camera,1/4" screw can move by 22.3mm/0.89in.D-ring lock at bottom for easily attaching and detaching camera.Also compatible with arca swiss clamp. | Size:44mm*38mm*12mm / 1.73in*1.49in*0.45in,weight:21g. | Soft cushion at bottom protect camera from scratching. | Package includes: 1 x QR plate,1x 1/4"-20 screw

Made of carbon fiber,lightweight and durable. | Matte surface treatment. | Color:black. | Package includes:1x Carbon fiber top flag

Clear Protection filter to protect lens against dust, scratches, oil, water and damage. | Made of high-definition optical glass, with no effect on image. | Ultra Slim & Lightweight design. The whole filter thickness is only 4mm and weights only 146g. | Compatible with matte box supporting 4x5.65 filters with 4mm thickness. | Package includes: 1 x Fotga 4x5.65" Optical Glass UV Protection Clear Filter

Fotga DP3000 Compact Single 15mm Rail A/B Stops Lens Follow Focus is specially designed for working on DSLR Mirrorless Cinema Video camera for making video filmmaking. | Compatible with 15mm rail system.Angle of handwheel is adjustable according to need.3 different size gear (38T/43T/65T) for different need to different lens. | Comes with A/B hard stops for quick and accurate focus change between 2 points.Single-15mm-rod clamp makes it able to mount different place flexiably. | Made of high quality plastic,lightweight,zero backlash.Design on handwheel ensures non-slip during operation. | Package includes: 1 x Fotga DP3000 Lightweight follow focus,1 x Gear belt,3 x Gears (38T,43T,65T)

Height Adjustable | Come with two 30cm length rods | This Rail System has a central Tripod Mounting plate that makes a perfect balance between the camera and the front mount accessories (35mm adapter/Mattebox/Follow Focus) | Strong enough to support the large variety of smaller cameras and bigger cameras as well | Base stand bottom with both 3/8" and 1/4" screw sockets, compatible to mount on any tripods

There is an improvement on its inner structure to reach a high level in this field, the Dampened gear box, which permits much less backlash(even zero backlash),even better than most follow focus on the market | The gear wheel on it can be detached and installed in both sides,which makes it suitable for both left-hand and right-hand photographer. The connection mount to the gear wheel is not only the newest version but also the last upgrade version | The white mark ring is made of magnet material. It can be detached or attached easily and quickly from the follow focus. You can also buy additional mark ring.There is a release button on the side which can easily locate the focus | Another advantage of this follow focus is it can use different size gears. It can work with 3 different size gear to meet your different need with various lens,We will ship the standard 43T | Material: Aluminum Alloy, Plastic.This set comes with a free flexible gear belt can be used with any zoom or prime lenses with a wide range of lens diameters(any size from 46 to 110mm)

Universal design for all camcorders and DSLRs & Industry standard 15mm supporting rods, center-to-center rails distance 60mm | The kit includes one French flag, and two adjustable side wings. Each of the three flaps can be positioned and locked in place so as to suit different focal lengths by providing the maximum amount of shading without getting in the way of the shot | With height adjustment feature so that the height of the Matte Box can be adjusted as per the the height of the camera lens. You can Adjust the height up to 45mm | A set of 4 “donut” rings are included.(Size at 103mm,76mm,64mm,51mm).By fitting one of these rings, light from the rear of the matte box can be blocked out, leaving only the camera lens protruding through. Donuts are slightly flexible, and the four sizes range to fit almost any lens diameter | Material: Made of Metal and Plastic

2 dual-purpose filter trays,supportinh 4"x4" filter.One of the 2 filter trays is rotatable,which will be helpful when you use gradual ND filter. | The kit includes one French flag, and two adjustable side wings. Each of the three flaps can be positioned and locked in place so as to suit different focal lengths by providing the maximum amount of shading without getting in the way of the shot | A set of 4 “donut” rings are included.(Size at 103mm,76mm,64mm,51mm).By fitting one of these rings, light from the rear of the matte box can be blocked out, leaving only the camera lens protruding through. Donuts are slightly flexible, and the four sizes range to fit almost any lens diameter | Universal design for all camcorders and DSLRs & Industry standard 15mm supporting rods, center-to-center rails distance 60mm | Material: Made of Metal and Plastic

【Fits for almost all cameras,15mm rail system】Universal design for all camcorders and DSLRs & Industry standard 15mm supporting rods, center-to-center rails distance 60mm | 【90 degree Swing-away type,easily and quickly chenge lens】You can easily swing-away the mattebox without disturbing the camera from the tripod and rail system.you can free open from one sides ,applied in the photographic process frequent replacement lenses and filters ,easily and convenience.Extra center-to-center 60mm 15mm rail holes on the swing-away bracket for mounting more accessories. | 【2 filter trays,one is totatble】2 dual-purpose filter trays made of plastic,supporting 4"x4" filter used .one filter tray is fixed,another one of the filter trays is rotatable,which will be helpful when you use gradual ND filter | 【3 flags greatly block lights】French Flag/Side Flags : The flags provide extra flare reduction and improves the quality of videos. The side flags are quick removable. They can be attached /detached easily.Both flags can be folded for storage. | 【Flags angles are adjustable】The flags are attached firmly on the sunshade mattebox by hinge mechanism. The side flags can be opened to the desired length by using the small knob provided on the flags

Quick-Release Version, easily attached and detach,Material: Aluminum Alloy, Plastic | There is an improvement on its inner structure to reach a high level in this field, the Dampened gear box, which permits much less backlash(even zero backlash),even better than most follow focus on the market | The gear wheel on it can be detached and installed in both sides,which makes it suitable for both left-hand and right-hand photographer. The connection mount to the gear wheel is not only the newest version but also the last upgrade version | The white mark ring is made of magnet material. It can be detached or attached easily and quickly from the follow focus. You can also buy additional mark ring.There is a release button on the side which can easily locate the focus | This set comes with a free flexible gear belt can be used with any zoom or prime lenses with a wide range of lens diameters(any size from 46 to 110mm)

Quick-Release Version, easily attached and detach.Material: Aluminum Alloy, Plastic | Improved design has dampening which gives virtually zero backlash(<0.5mm) | Long-life precision engineered gearbox enables accurate and reliable focusing | Compatible with industry standard Follow Focus Whip or Crank | With A/B release locking system for A/B hard stops

French Flag/Side Flags. Flags provide extra flare reduction.They are quick removable. They can be opened to the desired length by using the small knob provided on the flags. | Combined with a top handle bracket rig. handle grip can be installed both side,for both left-hand and right-hand. Matte box and top handle grip bracket can be also work seperately. | Fits standard 15mm supporting rods. Height of it can be adjusted by 3.5cm through release and lock the 2 screws by side. | Two filter trays, supporting 4"x4" filter.One is about 90-degree rotatable,which will be helpful when you use gradual ND filter. | 4pcs different size donuts included.(103mm,76mm,64mm,51mm). It is used to avoid large gap beside lens.

Universal design for all camcorders and DSLRs & Industry standard 15mm supporting rods, center-to-center rails distance 60mm | You can easily swing-away the mattebox without disturbing the camera from the tripod and rail system.you can free open from one sides ,applied in the photographic process frequent replacement lenses and filters ,easily and convenience | The kit includes one French flag, and two adjustable side wings. Each of the three flaps can be positioned and locked in place so as to suit different focal lengths by providing the maximum amount of shading without getting in the way of the shot. | A set of 4 “donut” rings are included.(Size at 103mm,76mm,64mm,51mm).By fitting one of these rings, light from the rear of the matte box can be blocked out, leaving only the camera lens protruding through. Donuts are slightly flexible, and the four sizes range to fit almost any lens diameter. | This Fotga DP3000 Matte box (M3) is a professional device universally designed to accommodate all DSLR's and camcorders and it compatible with any industry standard 15mm rail system

The FOTGA DP3000 Z-Shape clamp is for rod support rail system, follow focus support | Fits standard 15mm rods, with L M5 screw Blue Knob, strong, simple, great price,anodized black finish | It is used to extend left and right rod rail system support,it can extend application of rod support rail system,attach matte box, hand grip, shoulder balance, USB follow focus,follow focus,magic arm, LED light, flash, LCD monitor...If you have more gears, the 4 rods clamp is helpful | It is more often used to mount LCD monitor or LED light | Material: Anodized aluminum

The matte box gives provides the user full lighting control and prevents glare and lens flare with its foldable french flags and adjustable side wings. 4pcs of donuts included to meet your different needs of lenses. It also provides a means of using 4x4" filters and one of the 180 degrees rotating filter trays and much more! | Solid built and easy to use, this matte box has detachable and easy lock-on flags that will help you block undesired light and lessen glare or lens flare in your image | The newly added two filter trays are made to insert squre filters in front of your camera, so that dramatic and artistic effect can be made in your filming | This matte box can fit 15mm rod with 60mm center to center rails distance, comes with 4 donut rings for need of suiting different size of lens | This Fotga DP3000 Matte box (M2) is a professional device universally designed to accommodate all DSLR's and camcorders and it compatible with any industry standard 15mm rail system.

Measurements : Complete rail system is made of Metal. Color : knobs is blue and all other is black. Rails length : 250mm Rails dia : 15mm Rails center-to-center distance : 60mm Camera height riser adapters legth : 85mm | Thickness of height riser adapters : 8mm Lens support length : 65mm Tripod mounting plate length : 80mm Tripod mounting plate thickness : 20mm Screws thread : 1/4 & 3/8 | Features : Standard 15mm rails also advantageous for other 15mm accessory attachments Back and forth / side-to-side adjustments The height adjustments in all parts Camera Mounting plate, Lens Support and Riser is possible through Allen-key bolt mechanism | The camera Riser for Vertical and Horizontal adjustments of the camera Quick Lock Mechanism makes easy and quick assembly of the system. The plate comes with 1/4" camera mounting screws. Hence the large variety of | Package including: DP500 II rod support X 1 (as pictures show)

【Suitable for almost ALL Cameras,Compatible 14mm Ultra Wide-angle Lens or 114mm Front Thread Lens 】Universal design for all DSLR cameras, video cameras, interchangeable-Lens cameras & Industry standard 15mm rod system and 19mm rod system. Support maximum of 14mm ultra-wide-angle lenses or large lenses up to 114mm in diameter | 【CNC Machined，4x4 Rotatable Filter Trays】Rugged & lightweight, Made of all metal CNC machined except for the matte box body and filter trays, in the case of ensuring the overall strength and minimize the weight | 【No Light Reflection,Height Ajustable】The excellent extinction treatment inside of the matte box, can effectively block the glare and reflected light | 【One-button Releasing Swing Away Style】For changing lenses quickly, the unit features a swing away mechanism at a 90 degrees and one key to unlock, automatic closure and allow height adjustable. Instead of moving the mounting position of the matte box, (which may be blocked by other rig accessories, or require rod extensions to fit) , it can simply be lifted one key to undo | 【Foldable Clip-in Type French Flag and Side Flags】The kit includes one foldable French flag, and two adjustable side wings. All the flags can be folded and stored for easy carrying. Each of the three flags can be positioned and locked in place so as to suit different focal lengths by providing the maximum amount of shading without getting in the way of the shot.

This Fotga raillock clamp is compatible with Standard 15mm rod rail support rig system and camera cage | Easily install and detach the clamp by 2 locking screws. There are 2 points of entry for the height adjust lever for more vertical range adjustment | Material: Metal Color: Black,Blue(Screws) | Rail Center to Center Distance: 60mm, Center gap 30mm | Size: 77x 27 x15mm

Universal design for all DSLR cameras, video cameras, interchangeable-Lens cameras & Industry standard 15mm rod system and 19mm rod system. | Rugged & lightweight, Made of all metal CNC machined except for the matte box body and filter trays, in the case of ensuring the overall strength and minimize the weight. | For changing lenses quickly, the unit features a swing away mechanism at a 90 degrees and one key to unlock, automatic closure and allow height adjustable. | The kit includes one foldable French flag, and two adjustable side wings. All the flags can be folded and stored for easy carrying. | Stainless steel adjustable damping knobs on the rotation shaft of the top flag, side flags and swing-away module, which can be adjusted to meet the different usage habits.

DP500 Mark III Quick Release A/B Hard Stops Dampen Follow Focus | Integrated with A/B Hard Stops, stoppors can also be detached and then stored in the slots within the follow focus itself | Compatible with industry standard 15mm rods,Rail distance: 60cm, Rail diameter:15mm | Cameras: Sony A7 Series,（A7,A7R,A7S), A7II Series（A7II,A7RII,A7SII）,Panassonic GH3/GH4,Blackmagic BMPCC,Canon5DII/5DIII/5DIV,D500;Camcorders: Blackmagic BMPC/URSA/URSA mini, Sony FS100/FS700/FS5/FS7/F55/F5/F3, RED SCARLET/EPIC/RAVEN/ONE,Kinefinity KineRAW/KineMAX | Suitable for: All DSLR cameras, Video cameras, Interchangeable-Lens cameras

Made of metal | Color: Blue | 2pcs hard stops fixation scew + 1pcs scale pillar | Suitable for DP500III follow focus | Package including: Screw x 3

Work with and Charge for Sony Standard V mount Battery or replacement of Sony V mount battery.Please ensure your battery has the same mount as Sony Standard BP battery,such as BP-L60A and BP-L90A,etc.Compatible with 15mm rail system. | Work with and Charge for Sony Standard V mount Battery or replacement of Sony V mount battery.Please ensure your battery has the same mount as Sony Standard BP battery,such as BP-L60A and BP-L90A,etc.Compatible with 15mm rail system. | MIC can manage different inputs intelligently and ensures no interrupt during swift input changes,and ensures continuous power supply during a change between AC power and V-mount battery power. | Interface for camera/camcorder (8V-output) fits for all cameras/camcorders with 7V-9V voltage output. 14.8V output fits for all large-scale camcorders with 12V-16.8V wide voltage input.For GH4/GH5/GH5s camera,please ensure your dummy battery is decoded one. | DP500 CCUPS version power supply device allow stacking together mutually through Fotga dedicated interface.Theoretically,it can extend out multiple output interfaces for devices or cases in need of multiple input supplies.

【No Backlash,Sturdy Metal Made,Comfortable Rubber-covered Handwheel】Material: Sturdy Metal CNC Machined,New design on its inner structure to reach a high level, while the damping gives virtually zero backlash(<0.5mm).Handwheel is covered with well-made rubber,this would bring comfortability on operation especially in extremely weather as well as preventing slipping | 【Well-made Gearbox,Tightness Adjustable】Long-life precision engineered gearbox enables accurate and reliable focusing,2 levels adjustable damping.Drive gear can be mounted from both side.(Works for both right-handed and left handed),Drive Gear Interface: Compatible with JTZ X Type Interface Standard | 【A/B Hard Stops,15mm Quick-release Rod Slider】Integrated with A/B Hard Stops, stoppors can also be detached and then stored in the slots within the follow focus itself. | Multiple Gear Size for Option】Can use different size gears to meet your need with different lenses. This set comes with 3 size gears.(M0.8-38T/M0.8-43T/M0.8-65T),you can also buy extra 0.5 78T and 0.6 64T gear for extension. | 【Standard 12x12 Connection Port,Flexible Gear Belt】Work with speed crank and speed whip with standard 12x12mm connector.Flexible gear belt can be adjusted from 46mm to 110mm to be compatible with different lens.

Newly design on its inner structure to reach a high level in this field, while the damping gives virtually zero backlash(<0.5mm) | Long-life precision engineered gearbox enables accurate and reliable focusing | Material: Sturdy Metal CNC Machined,2 levels adjustable damping | Integrated with A/B Hard Stops, stoppors can also be detached and then stored in the slots within the follow focus itself | Drive gear can be mounted from both side.(Works for both right-handed and left handed)

Material: rubber and plastic,Easy to make adjustment,fast locking | Suitable for all DSLR Cameras,video cameras,DV,HDV,HDSLR. | Gear module: Film industry standard 0.8. Flexible Follow Focus Gear Ring Belt fits any lens with diameter from 46 to 110mm. | Lever length:Approx.60mm. Color: Black gear ring+ Grgy lever | Package including: Fotga follow focus lever handle(Grgy)+ gear ring x1

Fotga Dummy Battery Replacement LP-E17 DR-E18 DC Coupler for Canon EOS R8 R10 RP R50 77D 850D 800D 760D 750D 200DII 200D T6i T6s Rebel T7i Kiss X8i DSLR Mirrorless Camera,Compatible Fotga DP500III V Mount JTZ C5 LE | DC port: 5.5*2.1mm,please be mind this product does not work with EOS M3 M5 M6. | Output: 7V 3A | Material:ABS,Cable length:35cm-110cm | Package includes: 1 x LP-E17 dummy battery

Universal E-III Type Flash cold shoe bracket, Swivel light stand mount with Umbrella holder | Universal Removable metal cold shoe mount on top to mount your flash onto bracket.Work on monitor,ring light,speedlite flash,trigger,magic arm,mic and any accessories that has a camera type of shoe | A hole with locking screw in middle specially designed for holding umbrella. Easy Adjustment. This Flash bracket is with 180° vertical and 360° horizontal adjustment to allow to position the umbrella and flash in different angle | Easy Adjustment. This Flash bracket is with 180° vertical and 360° horizontal adjustment to allow to position the umbrella and flash in different angle | Comes with 1/4 inch to 3/8 inch screw adapter to attach it to a tripod or light stand or any camera rigs that with 1/4"-20 or 3/8"-16 male thread

It is specially designed for Canon EF&EF-S mount DSLR Cameras | It is designed to enable a lens to focus closer than its normal set minimum focusing distance. Getting closer has the effect of magnifying your subject (making it appear larger in the viewfinder and in your pictures). They are exceptionally useful for macro photography. | Consisting of 13mm,20mm and 36mm tubes.Each tube has electronic contacts.They can work alone or in different combination. | it supports automatic focusing, automatic exposure,etc. 1/4" mount screw on 20mm tube. | Made of alluminum and plastic.Package includes: 1x autofocus extension tube , 1 x front lens cap,1 x rear lens cap

This high quality automatic macro Extension Tube Set is designed to enable a lens to focus closer than its normal set minimum focusing distance | It contains 2pcs tubes in different length 10mm/16mm, which can be used in any combination or individually to obtain the different magnification | Designed with electronic contacts,which make it support automatic focusing,automatic exposure,etc. | It enables you to use all shooting modes of the camera,exposure compensation is required | Suitable for:FujiFilm X Mount X-Pro1 X-Pro2 X-Pro3 X-H1 X-A2 X-A3 X-A10 X-A20 X-A5 X-A7 X-T1 X-T2 X-T3 X-T10 X-T20 X-T30 X100F X100T

This high quality automatic macro Extension Tube Set is designed to enable a lens to focus closer than its normal set minimum focusing distance | It contains 2pcs tubes in different length 10mm/16mm, which can be used in any combination or individually to obtain the different magnification | Designed with electronic contacts,which make it support automatic focusing,automatic exposure,etc. | It enables you to use all shooting modes of the camera,exposure compensation is required | Suitable for: All Sony E mount mirrorless cameras.

Allows EF EF-S mount lens to be used on E-Mount mirrorless camera body | Allows focus to infinity. Supports AV / M mode. | The Lens adapter allows you to place your Canon EOS, EF Lens to E-Mount NEX camera body. | Designed for NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX5T NEX6 NEX7 NEX-F3 a6500 a6300 a6000 a5100 a5000 a3500 a3000 Alpha A7 A7R A7S & A7II A7RII A7SII NEX-VG10 VG20 | Please note although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operated with using this adapter.

Fotga standard speed crank handle for follow focus is made of aluminum, anodized black. | Fits to follow focus with standard 12mmx12mm port.90 degree right angle and bulb knob design,very convenient to control the follow focus. | Safty-lock design at the 12mmx12mm terminal,makes it insert the follow focus firmly,not falls off. | Made by CNC machine . Material: Metal | Connector size:12mmx12mm Length:100mm Weight:80g

Specifically designed for Nikon AF-S Nikkor 28-300mm F/3.5-5.6g ED VR Camera Lens,it's replacement of HB-50 | Primarily designed to prevent unwanted stray light from entering the lens by extending and shading the end of the lens | In addition, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact | This dedicated lens hood is designed to match the specific focal length of the lens it was designed for | Made of plastic