The FotodioX WonderPana FreeArc Core Unit Kit for Olympus 7-14mm PROis 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 Olympus M.ZUIKO 7-14mm f/2.8 PRO    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. Does it fit with no adapter ring to the em1X?

A: This lens has a Micro 4/3 mount, so it can fit directly to the OM-D E-M1X.

Q: 2. Will this lens fit the E-M5iii body?

A: Yes it will!

Q: 3. Is this fisheye or rectilinear?

A: It is rectilinear. It does have some mild distortion, but it is easily corrected in post.

Q: 4. Does this lens zoom internally? Meaning does the barrel of the lens extend when zoomed?

A: The lens zooms internally with the front element moving within the lens shade. It is a quite bulbous element though so it does require a little care in use. Its a very sharp lens, and Ive been very happy with the purchase.

Q: 5. Hi. Is this 7-14mm f/2.8 PRO lens compatible with Olympus PT-EP13 underwater housing ?

A: The Olympus PT-EP13 housing as sold is not compatible with the 7-14mm. Though, you might be able to get a third party dome port. I would suggest contacting our Underwater Department directly via email: uw@a href= http://bhphoto.com target= _blank bhphoto.com/a

Q: 6. Does this lens have built in image stabilization that can be used with the GH5's IBIS?

A: The Olympus 7-14mm f2.8 Pro does not have in-lens image stabilization. I have had it for a couple of weeks and used it already on two overseas trips. It's an extraordinary lens. I went into the B&H store in Manhattan to buy the lens in person. While there, I was able to mount both this lens and the Panasonic 7-14mm f4 on my own camera and take photos in the store. Both have excellent image quality and are absolutely rectilinear (i.e. straight lines appear straight, even at the edges of the frame and even at the widest end of the zoom range.) As many online reviewers have noted, the Panasonic lens has obvious purple fringing when used on Olympus cameras. This problem apparently does not affect Panasonic cameras. So if you're okay with losing one stop of light, the equivalent Panasonic lens is very good. It's also smaller, lighter and about $300 cheaper.

Q: 7. Does this lens require an adapter when used with the Panasonic GX8 or G5? Autofocus functions OK with those cameras? Thanks.

A: No. This lens does not require and sort of adaptor. Bring micro 4/3 is is 100% compatible. This includes autofocus.

Q: 8. Do we know yet if the lens hood on this lens is removable? I've only seen promotional photos of the lens with the hood on. If it's not removable, it may be a challenge to include filters, which is one of the main reasons I held off purchasing the Panasonic wide angle lens, as I use filters quite often.

A: The Olympus 7-14mm f/2.8 has a built in lens hood, so will not have a filter thread. At this time, using filters with this lens is not an option. Perhaps there will be filter holders designed for the lens after its release, but no manufacturers have an option for the lens at this time.

Q: 9. Is it possible to use an ND filter with this lens? If so, What would I need to buy? I hear there is not thread to screw on a filter

A: At this time, using filters with this lens is not an option. Perhaps there will be filter holders designed for the lens after its release, but no manufacturers have an option for the lens at this time.

Q: 10. Will this lens work perfectly with panasonic bodies? For example, the fn botton, pull down focus ring, auto focusing speed and image quality.

A: The Oly lens will certainly mount on the Panasonic camera and meter perfectly. The image quality depends on the sensor size and your ability to control the camera functions for best quality. I don't know if the bells and whistles of the Oly lens will work or not. I hate to let your local camera store be the local showroom for B&H, as many are these days, but possibly the salesman would help you try it on a body. (I wouldn't mention for an instant that you were going to purchase through mail-order in order to get B&H's superior return policy and rock-bottom prices--it always seems to antagonize the salesman).Frankly, my local camera store does not have as good a return/service policy as B&H, in addition to charging full MSRP for items...