The AtlasSound FATR4 New Construction 4" Strategy Series Mount Ring is designed to work with new construction drywall ceilings. It shows the drywallers that they need to cut around this particular area so you can easily mount your FA97-4 or FA95-4 enclosure when they have finished.

Mounting holes are designed to accommodate both 16 and 24" center studs and the ring will fit both 3/8 and 1 1/4" drywall.

The FATR4 installs before the drywalling is completed so you can be certain that you've reserved that particular location for your loudspeaker. No confusion in the future and no new holes to cut.

Since this is a long term accessory it's galvanized to prevent rust and maintain its structural integrity.

The FATR4 is designed to match both 16 and 24" center studs and 3/8 or 1 1/4" drywall.

Related Questions and Answers

Q: 1. I have a friend with a Celestron AstroMaster 130EQ Reflector Telescope and I have a Canon Rebel T3i. Will this work to join those two items for eclipse photos?Do I need anything else for that purpose?If possible, can you confirm the diameter of the main lens on the Celestron is 130mm like the model # indicates?

A: As stated above you will need a T-adapter to go between the T-Ring and the telescope. You need to know whether the telescope accepts 1.25in or 2in eyepieces to know what size T-Adapter to get. The T-Ring is camera specific so you are good there. The T-Adapter adapts the T-ring to the telescope. Don't forget the appropriate solar filter. You can only use the telescope and camera during totality without the solar filter. The solar filter must be in place outside totality or you will destroy the camera, your eye or both.

Q: 2. Can this be used to adapt my old T-mount lenses for my Pentaxes to the Sony E-mount? Obviously with no autofocus or other communication.

A: Yes, this Celestron T-Ring for Sony E-Mount Cameras can work for your application.

Q: 3. Would you recommend using this with a Canon EF Metabones? I have an EF Metabones adapter on my Sony A7S and Lumix GH4 to use all my Canon glass, would there be any difference in performance between this method, or should I lose the Metabones on the A7 and just go with a dedicated E-mount between the Celestron T-mount and the A7?

A: It will work but like others have said, staying with a native lens would work best.

Q: 4. Hello !!!Will this tripod mount ring fit an EF 200mm f/2.8 L II USM ???

A: This tripod collar is for the f/4 version of the Canon 70-200mm lens and will not fit the f/2.8 version.

Q: 5. Does this ring fit the Canon RF 70-200mm f/4L IS USM Lens?

A: No. The following lens does not adapt to tripod collars.

Q: 6. What is the size of threads 49mm or 52mm? I need 52mm to canon EF mount ! Thanks

A: A T mount is M42, it is not the traditional threading, it is meant to attach to a Canon camera and then attach it to a telescope or other T mount optic.

Q: 7. Hello !!!What tripod mount ring will fit a EF 200mm f/2.8 L IS USM?

A: First, I'm assuming that this is the EF 200mm f/2.8 L IS II (Black Lens) which is the newest version and NOT the EF 200mm f/2.8 L IS (White Version that comes with a tripod mount ring). The EF 200mm f/2.8 L IS II uses a sold separately Tripod Mount Ring A II (B). I currently use the Tripod Mount Ring A II (W) for my EF 70-200mm f/4 L USM lens. The only difference between these two Tripod Mount Rings is the (B) Black and the (W) White color of the Ring. I've used my Lens with the Tripod Mount Ring many times over the last year+ that I've owned it. It works perfectly and supports the lens with my camera attached quite well when attached to a tripod. When mounted on a tripod it is very easy to move between Landscape and Portrait orientation by simply rotating the camera and lens within the Tripod Mount Ring. Of course you need to loosen the Ring, rotate, and then tighten the Ring. This is very easy to do. When shooting with this lens hand held, I find it easier to rotate the base of the Ring upwards to make it easier to support the lens. I prefer this method to removing the Ring when hand holding. I highly recommend the Canon Tripod Mount Ring.

Q: 8. Is this the 10mm T ring?

A: The T-Ring is 11mm. Canon EOS (EF) bodies are 44mm deep, and adding an 11mm T-ring will get you to the ideal 55mm spacing.

Q: 9. Is the 10mm t ring?

A: The Celestron T-Mount SLR Camera Adapter for Canon EOS is a standard T-mount adapter.

Q: 10. Hi There, does this tripod mount ring fit the 70-200 f/4 ii too?

A: The correct collar for the mark 2, is the AII (WII), click the link below to view; https://www.bhphotovideo.com/c/product/1414601-REG/canon_2311c001_tripod_mount_ring_aii.html