This WonderPana FreeArc Core Unit from FotodioX is designed to specifically fit the Canon EF 14mm f/2.8L II USM lens, as well as a separately available WonderPana 6.6" Holder Bracket. Those items can be combined to allow for the convenient use of two 2.5 to 4.0mm thick filters measuring 6.6" wide or one 2.5 to 4.0mm thick filter measuring 6.6" wide along with one FotodioX 145mm round filter behind it. A compatible 145mm inner-pinch lens cap for 145mm FotodioX round filters is also provided.

The included WonderPana FreeArc Core Unit consists of two components, a front filter holder and a rear lens collar. Placement of this FreeArc Core Unit onto a Canon EF 14mm f/2.8L II USM lens is easily accomplished by sliding the rear lens collar over the rear of the lens until it has achieved a secure fit. Afterward, the front filter holder can be screwed onto the front of the installed rear lens collar.

To use the WonderPana 6.6" Holder Bracket with the FreeArc Core Unit for a Canon EF 14mm f/2.8L II USM lens, pretapped threaded inserts along the edge of the front filter holder accommodate the six included brass short screws for correct positioning of the WonderPana 6.6" Holder Bracket's two assembly pieces so that they are placed parallel to each other and can hold a 6.6" wide filter between them. Once the holder bracket and the front filter holder are combined and the separate collar has been slid over the rear of a Canon EF 14mm f/2.8L II USM lens, the front filter holder with the attached holder bracket can be screwed onto the installed rear lens collar.

After being fitted onto a Canon EF 14mm f/2.8L II USM lens, the bearing design of this WonderPana FreeArc Core Unit allows a WonderPana 6.6" Holder Bracket to be rotated 360°. This permits the use of graduated neutral density and other filters that are enhanced by varied positioning.

The FotodioX WonderPana 6.6" Holder Bracket provides two pairs of filter slots, a configuration that accommodates two compatible rectangular filters. For each rectangular filter that is placed within one of the holder bracket's slots, its position can be secured using the included brass long screws. Pretapped threaded inserts along the outside of the holder bracket allow the long screws to each apply pressure to a spring-loaded retainer within each filter slot. When a pair of the long screws is used, the level of grip upon a rectangular filter can be varied, which can complement the use of graduated filters whose effect can be adjusted to better suit changing lighting conditions or creative demands by sliding them up or down within a filter slot.

This FotodioX WonderPana FreeArc Core Unit includes front filter threads, which allow a FotodioX 145mm round filter to be used along with a WonderPana 6.6" Holder Bracket. If a 145m round filter is used on the attached WonderPana FreeArc Core Unit, the rectangular filter slot closest to the rear of the holder bracket becomes unavailable.

The FotodioX 145mm Center-Pinch Snap-On Lens Cap for Select WonderPana Systems and Filters is a 145mm front lens cap with a squeeze, spring, and snap-on mechanism. It is easy to install as well as remove and can attach to a WonderPana FreeArc filter holder system in order to protect the front element of a lens that any one of those systems is mounted on. Additionally, with the exception of the FotodioX Ultra Slim filters, this lens cap can be used to protect a FotodioX 145mm filter that is mounted on a FotodioX WonderPana FreeArc filter holder system.

Lens caps protect your lens or filter from scratches, fingerprints, and the elements when the lens or filter is not in use.

For Canon EF 14mm f/2.8L II USM    WonderPana FreeArc Core Unit    Use with WonderPana 6.6" Holder Bracket    With Bracket, Holds 6.6" Wide Filters    Bracket Rotates 360° with FreeArc    Holds up to Two 6.6" Wide Filters    Combine a 6.6" Wide and a 145mm Filter    145mm Center-Pinch Snap-On Lens Cap

• Compatible with a Canon EF 14mm f/2.8L II USM lens
• Accommodates a separately available WonderPana 6.6" Holder Bracket
• With a WonderPana 6.6" Holder Bracket, allows for the convenient use of two filters measuring 6.6" wide or one filter measuring 6.6" wide along with one FotodioX 145mm round filter behind it
• Allows a WonderPana 6.6" Holder Bracket to be rotated 360° so that rectangular filters placed within it can be angled to the best position relative to the subject in front of the camera
• Includes 145mm front filter threads, which allow a FotodioX 145mm round filter to be used along with a WonderPana 6.6" Holder Bracket
• Constructed from aluminum alloy for durability while remaining lightweight
• 145mm front lens cap with a squeeze, spring, and snap-on mechanism

Related Questions and Answers

Q: 1. Why is there no Sony version?

A: Unfortunately, we are not privy to Samyang's design and engineering decisions. For such information, I would highly suggest reaching out to the manufacturer, and I would also recommend expressing your desire for a Sony version, as that might encourage them to produce it.

Q: 2. Are there female threads on the other side? If so, what size?

A: The FotodioX 53mm WonderPana Go ND32 Filter will have 53mm female threading.

Q: 3. What is the angle of view?

A: The angle of view is 114 degrees.

Q: 4. Does this lens have a focus confirmation chip?

A: Lost the answer U sent last week. Basically, yes chip in the lens. I confirmed by looking in the camera's viewfinder. Great option to help with night photography

Q: 5. I want to use this lens for night photography of stars & sky. Does this lens have coma?

A: I have used this lens on multiple occasions for night photography including stars and milky way. I have not noticed any discernable coma issues with it.

Q: 6. Canon this lens be used with Canon R5 using the adapter?

A: As far as we are currently aware, there are no reported issues using the Samyang XP 14mm f/2.4 lens with the EOS EF-RF adapter and the EOS R5.

Q: 7. a sharp and clear shot like 24-105. The lens looks like new no scratch on it. Who has the same problems with this lens. I paid too much money for it?

A: What is the actual question?

Q: 8. Has anybody used this lens for portraits of large groups of people? Are the sides distorted? The 18-135 on the Canon 80D is not wide enough for some locations, and I wonder if this would work without creating distortion.

A: With this lens there is very little distortion, but in terms of using this for large group shots, this is one of the best primes lenses you could get for such shooting situations.

Q: 9. Im interested in using this 14mm lens for night photography and wide-angle macro. Has anyone tried using this lens with a 12mm extension tube for wide-angle macro? Im wondering if thats even possible. Thanks!

A: As per Canon, the Extension Tube EF 12 II will not work with this particular lens.

Q: 10. Does this lens with nikon d3300?

A: Yes it work perfectly