The FotodioX WonderPana FreeArc Core Unit Kit for Nikon 14mm Lensis a two-piece assembly designed to be used in combination with a FotodioX WonderPana FreeArc Core Unit, a WonderPana 145 Core Unit, or a WonderPana FreeArc Aluminum Step-Up Ring. A WonderPana Core Unit or a WonderPana FreeArc Aluminum Step-Up Ring with the WonderPana 6.6" Holder Bracket attached can then 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.

Use of this holder bracket is easily accomplished by separately attaching its two assembly pieces to opposite sides of a WonderPana Core Unit or a WonderPana FreeArc Aluminum Step-Up Ring using the six included brass short-screws. Pre-tapped threaded inserts along the edge of a WonderPana Core Unit or FreeArc Aluminum Step-Up Ring accommodate those screws and ensure correct positioning of the two assembly pieces so that they are positioned parallel to each other and can hold a 6.6"-wide filter between them. The combined WonderPana Core Unit, or WonderPana FreeArc Aluminum Step-Up Ring, and WonderPana 6.6" Holder Bracket can then be attached to a compatible lens.

For WonderPana Core Units that consist of a rear lens collar and a front filter holder, pre-tapped threaded inserts along the edge of the front filter holder accommodate the six brass short-screws for correct positioning of the WonderPana 6.6" Holder Bracket's two assembly pieces. Once the holder bracket and a front filter holder are combined, and the separate collar has been slid over the rear of a compatible lens until it has achieved a secure fit, the front filter holder with the attached holder bracket can be screwed onto the front of the installed rear lens collar.

After being fitted onto a compatible lens, the bearing design of the WonderPana FreeArc Core Units and WonderPana FreeArc Aluminum Step-Up Rings 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. While a WonderPana 145 Core Unit does not include a 360° rotating mechanism, eight pre-tapped threaded inserts all around its edge allows the WonderPana 6.6" Holder Bracket to be installed in 45° increments so that rectangular filters placed within it can be angled to the best approximate position relative to the subject in front of the camera.

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. Pre-tapped 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 are 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.

Each FotodioX WonderPana Core Unit or WonderPana FreeArc Aluminum Step-Up Ring includes front filter threads, which allow a FotodioX 145mm round filter to be used along with this filter holder. If a 145mm round filter is used on the attached WonderPana Core Unit or WonderPana FreeArc Aluminum Step-Up Ring, the rectangular filter slot closest to the rear of the holder bracket becomes unavailable. The WonderPana 6.6" Holder Bracket features a lightweight, aluminum-alloy construction that has a corrosion-resistant, black anodized finish for durability. A rigid pouch is included for storage and transport.

For Nikon AF NIKKOR 14mm f/2.8D ED    WonderPana FreeArc Core Unit, Lens Cap    WonderPana 6.6" Holder Bracket    6.6 x 8.5" Graduated ND 0.6 Filter    Soft-Edged Line of Transition    Up to 4x Filter Factor, 2-Stop    Reduce Exposure in Selective Areas    145mm Circular Polarizer Filter    1.25 to 8x Filter Factor, +0.3 to 3-Stop    Helps to Eliminate Reflections and Glare

• When used with a FotodioX WonderPana FreeArc Core Unit, a WonderPana 145 Core Unit, or a WonderPana FreeArc Aluminum Step-Up Ring, 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 installed on a Core Unit or FreeArc Aluminum Step-Up Ring
• Provides two pairs of filter slots, a configuration that accommodates up to two 2.5 to 4.0mm-thick rectangular filters
• Allows up to two compatible rectangular filters to be rotated 360° when used with a FotodioX WonderPana FreeArc Core Unit or WonderPana FreeArc Aluminum Step-Up Ring
• When used with a WonderPana 145 Core Unit, allows up to two compatible rectangular filters to be installed in 45° increments so that a filter placed within it can be angled to the best approximate position relative to the subject in front of the camera
• Ability to vary grip on each installed rectangular filter to 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
• Lightweight, aluminum-alloy construction with a corrosion-resistant, black anodized finish for durability
• Rigid pouch included for storage and transport

Related Questions and Answers

Q: 1. Does this lens provide EXIF data to the camera so that the f/stop used will be recorded?

A: The lens does not provide EXIF data to the camera.

Q: 2. Does this lens work on the Canon EOS R?

A: Yes this lens is compatible, but it will be manual focus only. The lens doesn't have any computer components in it.

Q: 3. Does it work with the Full frame sensor of the Z7? I mean: does it make good and full use of the sensor? Thank you very much in advance

A: Yes it is a full frame lens.

Q: 4. What is the circular size for this lens?

A: I'm sorry but this lens does not take a filter, the lens is too wide and the front element protrudes too much.

Q: 5. Hi Im wondering from your professional opinion, if this would be a nice fit for my canon 5d mark iv? Im planning on trying out astrophotography when I drop by Indonesia for a week. Thanks.

A: I shoot with a Mark iv and have the MF version of this lens. It's amazing for astrophotography. I use it primarily for this and landscapes.

Q: 6. how’s this different from using the F-mount version with the FTZ adapter(That combination might be a bit lighter too)

A: This is a native attachment for a Z mount camera. It removes the need to have a adapter between your lens and the camera. It also has a rear gel filter holder.

Q: 7. Does anybody use this this lens on a Canon 7D (not Mark II)? My lens does not properly focus at all and I wonder if it's defective or simply it's not compatible.

A: I have this lens and a 7d and it seems to focus fine for me.

Q: 8. Does it distort the horizon or have fish eye effect??

A: The lens has some distortion, but it is relatively minor and not a fisheye by any means.

Q: 9. Can this lens be used with APS-C cameras?

A: Yes. There will be a crop factor of 1.6x. Also make sure you will be mounting it to a Canon mount other wise you will need a lens adapter.

Q: 10. What’s the filter size and can you put nd in front?

A: Unfortunately, this lens cannot accept screw in filters as it lacks a front filter thread. There is the FotodioX WonderPana FreeArc Core Unit Kit for Rokinon/Samyang 14mm Lens with 145mm Solid Neutral Density 1.2 and 6.6 x 8.5" Soft-Edge Graduated Neutral Density 0.6 Filters, B&H # FOWFN166SV14 which will allow drop in type filters to be used with the lens. https://bhpho.to/2lNU8i5