The FotodioX WonderPana 8.0" Holder Bracket is a two-piece assembly designed to be used in combination with a FotodioX WonderPana FreeArc XL Core Unit or a WonderPana XL Aluminum Step-Up Ring. Attaching the WonderPana 8.0" Holder Bracket to a WonderPana FreeArc XL Core Unit or a WonderPana XL Aluminum Step-Up Ring can allow for the convenient use of two 2.0mm-thick filters measuring 7.9" wide, or one 2.0mm-thick filter measuring 7.9" wide along with one FotodioX 186mm 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 FreeArc XL Core Unit or a WonderPana XL Aluminum Step-Up Ring using six of the eight included brass short-screws. Pre-tapped threaded inserts along the edge of a WonderPana XL 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 7.9"-wide filter between them. The combined WonderPana XL Aluminum Step-Up Ring, and WonderPana 8.0" Holder Bracket can then be attached to a compatible lens.

For WonderPana FreeArc XL 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 six of the eight brass short-screws for correct positioning of the WonderPana 8.0" 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 XL Core Unit allows a WonderPana 8.0" 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 8.0" 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 is secured by integrated guides within each slot. These guides apply pressure along both sides of a filter that is sufficient to hold it in place, but permits movement of that filter. This 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.

The WonderPana 8.0" 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 Sigma 14mm f/1.8 DG HSM Art    WonderPana FreeArc XL Core, Lens Cap    WonderPana 8.0" Holder Bracket    186mm Solid Neutral Density 1.2 Filter    16x Filter Factor, 4-Stop    Darkens Entire Image    7.9 x 10.2" Graduated ND 0.9 Filter    Up to 8x Filter Factor, 3-Stop    Reduce Exposure in Selective Areas    Soft-Edged Line of Transition

• When used with a FotodioX WonderPana FreeArc XL Core Unit or a WonderPana XL Aluminum Step-Up Ring, allows for the convenient use of two filters measuring 7.9" wide, or one filter measuring 7.9" wide along with one FotodioX 186mm round filter installed on a WonderPana FreeArc XL Core Unit or WonderPana XL Aluminum Step-Up Ring
• Provides two pairs of filter slots, a configuration that accommodates up to two 2.0mm-thick rectangular filters
• Allows up to two compatible rectangular filters to be rotated 360° when used with a FotodioX WonderPana FreeArc XL Core Unit
• Integrated guides within each filter slot apply pressure along both sides of a filter that is sufficient to hold it in place, but permits movement of that filter, complementing 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
• Microfiber cleaning cloth included, plus a rigid pouch for storage and transport

Related Questions and Answers

Q: 1. does it come with the magnetic ring base to attach it or do I have to buy it separatly? (I mean, the base to put in my lense, and then the filter)

A: Freewell 82mm Magnetic Quick-Swap Neutral Density 3.0 Filter (10-Stop) BH #FRMND100082 comes with the 82mm Magnetic Adapter Ring so you don't have to buy it separately.

Q: 2. Do these filters have front threads? can they be stacked?

A: Yes, these filters have front threads and can be stacked

Q: 3. I have been into photography for a long time but never used filters. Will this kit be too overwhelming for a beginner? Should I be just getting one individual filter than a set like this?

A: If you are ready to start using ND filters this kit is a lot more fun than using thread in filters. The image quality you will obtain is also superior compared to the quality you obtained using a thread invariable ND filter. The system is very easy to assemble and connect to your lenses.

Q: 4. Does the filter holder or filters block any of the field of view of sigma 14-24 mm dg hsm f mount lense?

A: The FotodioX WonderPana FreeArc XL Core Unit Kit for Sigma 14-24mm Art Lens with 8.0" Holder Bracket does not vignette on the Sigma 14-24mm f/2.8 DG DN Art Lens.

Q: 5. Will these work with V5 filter holder ?

A: Yes, these will work with the V5 or any standard 100 x 100mm / 4" x 4" 2mm filter holder system.

Q: 6. Do I need to buy another lens ring to fix this filter? This adapter is immediately attached to the lens or you need to buy something else? What is included with this filter?

A: What you see is in the photos is all you need if you want to use the polarizer. In the Box: FotodioX 186mm Slim Circular Polarizer Filter Filter Pouch Limited 2-Year Warranty FotodioX 186mm Center-Pinch Snap-On Lens Cap for Select WonderPana Systems & Filters Limited 2-Year Warranty WonderPana FreeArc XL Core Unit for Sigma 14-24mm f/2.8 DG HSM Art Lens Limited 2-Year Warranty If you want to use the square or rectangular filters, then you will need the brackets. Click on the link below to view; https://bhpho.to/32VgMWY

Q: 7. Can it be stacked with Freewell other variable ND filters or polarizers ?

A: Freewell 82mm Magnetic Quick-Swap Neutral Density 3.0 Filter (10-Stop) has 82mm front filter threads. So you can screw on another filter on top of it as long as the other filter has 82mm threads as well.

Q: 8. Will this fit the Sigma 14-24 DG N sony e Mount?

A: Yes, if it is the Sigma DG DN Art lens.

Q: 9. What is Included? Magnetic UV Filter, ND Filter, Lens Cap, Microfiber Cleaning Cloth, Magnetic Hard Case？

A: Kit Includes Magnetic UV Filter, ND Filter, Lens Cap for UV Filters, Microfiber Cleaning Cloth, Magnetic Hard Case.

Q: 10. Does this kit come with one filter pouch that holds all 7 filters?

A: Yes it does!