The FotodioX WonderPana FreeArc Kit for Tokina 10-17mm 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 Tokina AF 10-17mm f/3.5-4.5 Fisheye    WonderPana FreeArc Core Unit, Lens Cap    WonderPana 6.6" Holder Bracket    6.6 x 8.5" Graduated ND 0.9 Filter    Soft-Edged Line of Transition    Up to 8x Filter Factor, 3-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. Has anyone actually tried this with an FX camera, like a D750? What I've read says that you get normal fisheye effect--without vignetting or circular image--at the 17 mm range. Or does this lens make the camera switch automatically to DX crop factor?

A: As far as I know, the D750 format needs to be changed manually from FX to DX.

Q: 2. Is there lens data /I support?

A: The Tokina T1.5 Cinema Vista 5-Lens Kit B (ARRI PL) lenses do not have any communication with the camera body.

Q: 3. Is there a version with lens data /I?

A: No, the Tokina 3-Lens Kit C (PL Mount, 25, 50, 85mm) does not have a version with extended data available.

Q: 4. Have yet to begin learning post production with Photoshop Lightroom CC. Is this lens in particular included in those programs for distortion correction?

A: Yes, there are profiles available for the 10-17mm lens in Photoshop Lightroom

Q: 5. Will this lens still autofocus when combined with a Nikon D90? Setting up for some underwater photography and want to make sure I still have autofocus capability.

A: The Tokina 10-17mm lens will be fully compatible with the Nikon D90, including autofocus. This lens is an excellent option for underwater photography with the D90.

Q: 6. Does this kit come with a case?

A: No, the Tokina Cine ATX 3-Zoom Lens Kit (Canon EF) does not include a case.

Q: 7. "Will the posted version of the 10-17 accept screw in filters and if so what size?"

A: No, the Pentax HD DA Fisheye 10-17mm f/3.5-4.5 ED Lens does not allow for standard thread-on filters.

Q: 8. Will this lens auto focus on a Nikon D300?

A: Yes, it will autofocus on the D300. The D300 does not have any focus restrictions or special requirements. It will autofocus with any autofocus lenses made by Nikon or for the Nikon AF system by other manufacturers.

Q: 9. Will this work with the Pixel 7 Pro?

A: Yes, this will work with a Pixel 7 Pro.

Q: 10. Does this provide a 180-degree diagonal field of view for a Canon APS-C sensor?

A: When the Tokina 10-17mm f/3.5-4.5 AT-X 107 AF DX Fisheye Lens for Canon is zoomed at 10mm it does give you a 180-degree diagonal field of view on a Canon APS-C sensor camera.