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 14-24mm f/2.8 DG HSM Art    WonderPana FreeArc XL Core, Lens Cap    WonderPana 8.0" Holder Bracket    186mm Solid Neutral Density 1.5 Filter    32x Filter Factor, 5-Stop    Darkens Entire Image    7.9 x 10.2" Graduated ND 0.6 Filter    Up to 4x Filter Factor, 2-Stop    Reduce Exposure in Selective Areas    Hard-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 this VND also have polarizer built in.... or should we consider getting the PolarPro fixed ND/PL? Thank you

A: This filter is only a VND, if you want a combo, then the Polarpro ND/CP would be the way to go.

Q: 2. Can this VND work with PolarPro's Summit kit similarly to its drop-in CPL?

A: No, the PolarPro Summit filter holder uses the PolarPro Summit filters and does not work with a standard screw on filter like the PolarPro 82mm Peter McKinnon Edition Variable Neutral Density filter.

Q: 3. Has anyone used it on an ultra-wide like the Sony 16-35 2.8? I'm worried how it will perform when ultra-wide.

A: The Polarpro filters are excellent and should produce high quality images without any vignetting on the wide end.

Q: 4. Hi, interested if if this is the first or second edition from PolarPro for the variable ND filter. Thank you

A: This is version one.

Q: 5. Hi ! Video guy question ! Will this let me go f1.8 on 1/50 and 200 iso on a bright sunny day ? Or I need the other version. Thanks

A: Unfortunately, we cannot be sure exactly how much density you will need without knowing the original exposure or the ambient light level. However, I would guesstimate that, by using the Sunny-16 rule, I would recommend you would need at least a 10-stop neutral density filter for your usage needs, so the above option would not work for your usage. If you are looking for an alternative that would work, I would recommend the Aurora-Aperture 77mm Power XND Mark II Variable ND 1.5 to 3.3 Filter (5 to 11-Stop), B&H # AUVND322K77, or the Haida 77mm NanoPro Variable Neutral Density 0.9 to 3.0 Filter (3 to 10-Stop), B&H # HANPVND77, for your usage needs.

Q: 6. Does this have 82mm threads on the front to attach a lens hood?

A: This filter does not have front threads.

Q: 7. Is this newest version? Version 2?

A: No this is the mark I.

Q: 8. Will this work on Sony 24mm GM with lens hood?

A: You can use this filter with the hood but rotating it would be a task.

Q: 9. Does this Variable ND Filter suffer from color cast? How much color correction is needed in post if any? Compared to no ND filter what is the color temperature? Thanks

A: These Polarpro filters are very good and have little or no color cast to speak of.

Q: 10. If I'm attaching this to my Canon 24-105mm lens, will this accept it's lens hood?

A: Unfortunately, the hood will not work with the filter.