The FotodioX WonderPana FreeArc Core Unit for Panasonic 7-14mm 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 Panasonic Lumix 7-14mm f/4.0 ASPH.    WonderPana FreeArc Core Unit    WonderPana 6.6" Holder Bracket    Holds 6.6" Wide Filters    Holds Filters 2.5 to 4mm Thick    Holds up to 2 Rectangular Filters    Up to 1 Rectangular and 1 Round Filter    Rotates 360° with FreeArc Systems    Anodized Aluminum Alloy Construction    145mm Center-Pinch Snap-On Lens Cap

• 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 lens fit on an olympus omd m5 II body?

A: Technically there is no problem. However... The purple reflections really make this lens unusable on the Olympus omd-em5 II. Half of the photos taken with the combo are affected. I gave up on this lens, you try to reframe your shot, thinking you control the problem only to find out that there are still people spots... Reframing to avoid lens problems is not a real artistic thing to do... The Olympus 7-14 is of course more expensive but at least you will use the lens.

Q: 2. Will this unit fit to my 100-400mm with sony 7iii attached camera?.I have explore v2 30L?

A: Shimoda Designs Large Core Unit for Mirrorless Camera BH #SHCULML will not fit the Sony FE 100-400mm f/4.5-5.6 GM OSS Lens BH #SO100400GM with the tripod mount on. Please check out customer photos to have an better idea about the fit https://bhpho.to/3v8ypC4

Q: 3. What is the difference between the DSLR v3 Core Unit (Large) and the v2 ?

A: The discontinued Shimoda Designs DSLR V2 Core Unit (Large) is approximately 1" smaller in one dimension than the Shimoda Designs DSLR V3 Core Unit (Large).

Q: 4. Will the small core unit line up with side access on the Action X50 backpack?

A: The Shimoda Designs Small Core Unit for Mirrorless Camera was made for smaller interiors than that of the Shimoda Designs Action X50 V2 Backpack (Black, 50L), BH #SHV2AX50B, so you may have to find a way to fill in the extra space, or us the compression straps to hold the core in the correct position, but it should be possible to align the side access zipper with the side access zipper of the backpack.

Q: 5. Many online reviews and forums suggest that this lens suffers from intense purple flare. However, I've also heard that this problem is specific to Olympus cameras. Is the flare still there on Panasonic cameras? (I use the Panasonic G7) If it is, is it as bad as the reviews suggest?

A: I experience purple lens flare with the lens on a Blackmagic Pocket Cinema Camera. Happens with bright natural lighting such as windows in the periphery of the shot.

Q: 6. How can you buy more of the dividers for the core unit?

A: If you are looking to get more dividers for the Shimoda Designs Large Core Unit for Mirrorless Camera, you should consider purchasing the Shimoda Designs Divider Kit (River Blue), BH #SHDKDSLRRB.

Q: 7. will this lens work on the gh4 camera?

A: Hi Tim. Yes it works perfectly on a GH4. I have both.

Q: 8. So just to make sure, this will work on my GF1?

A: Yes, the GF1 has a micro four thirds mount, so any micro four thirds lens, including the 7-14mm, will fit your camera.

Q: 9. What are the exact interior dimensions of this core unit? The description and the spec contradicts each other.

A: The exact interior dimensions of the Shimoda Designs Large Core Unit for Mirrorless Camera are 10.6W x 14.6H x 4.7"D.

Q: 10. Any recommendations for a hard/stiff lens case that would give the 7-14 a nice tight fit?

A: No. I keep the lens in the soft bag it came with, and in turn keep that in one of two camera bags I got from Ruggard. The smaller case holds a extra lens with my GH-4;the larger case hold my camera and 4-5 lens.