Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Do you retain weather sealing with this adapter?
Document: A7R uses contrast detection AF, this adapter makes it phase detection..See my sample pic at DPreview..[...]
For some reason Amazon had this labeled as a tripod mount. It is an adapter that can be used to mount regular Sony Alpha lenses on the A7 and A7r. It does what you would want when used in that manner. (It does have a mount site for connecting a tripod or tripod mounting plate - but that is incidental.
This adapter supersedes its predecessor the LA-EA2 which didn't support full frame sensors.Also, I found a helpful chart/table that details and compares the specifications of all four Sony adapters: LA-EAx.[... ]This may be of some help for those considering these adapters.
Tripod mount built-in is a bonus as it's necessary when using large lenses on the tiny mirrorless camera.Due to the fact that FE mount lenses are not so readily available and range is limited, this adapter is a must to increase the capabilities and options for A7 and A7R owners.
They really are THAT saturated and vibrant; if it's wrong, you're not getting it out in post.But back to the adapter (I apologize). IF you already have a bag or two full of older lenses, it's a must-have, and gobs of fun / nostalgic magic wand. If you don't, or only have a couple, keep your old body and your money (and wait).
I am in the market for an older Minolta AF 50 mm f/1.4 lens to test the low light capability of this combination.Two things to note. The adapter is light--weighing only 4 ozs--so it only adds a little weight to the camera body. Second, do not lose the rear lens cover.
I have bought this item along with the much famed ZA 135mm f/1.8 lens (both through Amazon). This adapter is simple to use, worked straight away out of the box. Comes with from and back caps which need to be kept at hand due to the super sensitive mirror assembly. So far i have been using it for a week and haven't even taken it off the camera! AF is fast and accurate.
I bought the LAEA4 adapter when I received the Sony a7 and a7R. This adapter works with both cameras and, in my mind, it is a superior adapter than the LAEA3 adapter. The latter, while less expensive, does not autofocus Sony or Minolta or Minolta/Konica lenses that use the focus motor that is within the camera body. It will autofocus, albeit slowly, with those model of lenses were the focusing motor is built-in into the lens barrel.
Hi you all. I bought this adapter to be able to shoot cheap old school minolta af lenses with my sony A7. It proved to be the right way to go. I had been shooting the minolta 50mm 1.7 and the beer can f4 lenses without a problem and getting excellent results. So, if you decide to by a sony FF  A7 or A7R and want to have different options for your lenses this is the adapter to get.
Finally Sony introduces a full-support E-mount adapter for full-frame cameras/camcorders that allows mounting A-mount lens; and supports both AF and FF with a full-size translucent mirror for accommodating full-frame sensors. Its electronics supports auto-focus and zooming on motorized A-mount lenses. This LA-EA4 supports both single-shot AF and continuous AF.I bought mine for my NEX-VG900 camcorder and like it.
Answer: Hi J., Sony Lens Mount Adaptor does not retain weather sealing. -Vincent