The FotodioX WonderPana FreeArc Core Unit Kit for Tamron 15-30mm Lensesis 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 15-30mm Di VC USD/USD G2 or Di USD    WonderPana FreeArc Core Unit, Lens Cap    WonderPana 6.6" Holder Bracket    145mm Solid Neutral Density 1.2 Filter    16x Filter Factor, 4-Stop    Darkens Entire Image    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

• 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. Will this system also fit the Pentax 15 x 30 f/2.8 wide angle lens.?

A: This filter holder is dedicated to the Tamron 15-30mm lens only--it isn't compatible with the Pentax 15-30mm lens.

Q: 2. What is the quality of the sunbursts that you get with this lens?

A: The sunburst are very good when using an aperture of f/11 or smaller.

Q: 3. Does this lens have an internal zoom or does it extend externally?

A: This lens has internal zoom.

Q: 4. will this work on Nikon 70-200 2.8 lens?

A: No, for Nikon 70-200mm f2.8 you will need this BH #NIADSFT77105

Q: 5. Is the hood fixed or can it be removed?

A: The lens hood is fixed.

Q: 6. Where is the lens made?

A: As per our records, this lens is made in Japan. Please note that this is subject to change at any time.

Q: 7. Is this compatible with the Nikon Z6 (using FTZ) if you use the Tamron Tap-in console?

A: Yes, the Tamron SP 15-30mm f/2.8 Di VC USD G2 Lens for Nikon F is compatible with the Nikon Z 6 camera when using the Nikon FTZ Mount Adapter. Use the Tamron TAP-in Console for Nikon F lenses to make sure the lens firmware is up to date.

Q: 8. Where can I get a replacement lens cap for this lens?

A: I'm sorry, we no longer carry that cap, as it has been discontinued by Tamron.

Q: 9. Are there any recommended ND filters for this lens? I'm using it on my Panasonic Gh5s with the metabones speedbooster.

A: Since the Tamron has a rear gel filter holder, perhaps the new Haida Rear Lens ND Filter Kit for Tamron SP 15-30mm f/2.8 Di VC USD Lens (https://bhpho.to/2XxAC8O)

Q: 10. Does this adapter work with other S5 filter holders? I have the S5 for the Fuji xf8-16 and would like to use it on my other lenses with 77mm filter threads.

A: Yes, this adapter will work on the Nisi S5 Holder for the Fuji XF 81-6mm lens.