Really Right Stuff Base Plate for Select Sony Alpha a7 Series Cameras

BH #REBA9BP • MFR #BA9 BASE PLATE
Really Right Stuff
Really Right Stuff Base Plate for Select Sony Alpha a7 Series Cameras
Key Features
  • For the Sony Alpha a9, a7 III, & a7R III
  • Adds Quick Release Functionality
  • Arca-Type Compatible Dovetail Mount
  • Black Anodized 6061-T6 Aluminum
The Base Plate for Select Sony Alpha a7 Series Cameras from Really Right Stuff is designed with anti-twist flanges to keep the mounted camera from twisting. Once the dovetail plate is on, quick release functionality has been added to the camera. Also, this base plate is compatible with all Really Right Stuff clamps and most other Arca-type heads.
In Stock
$85.00
Gil R., B&H Expert

True Know-How

Ask Our Experts

800.606.6969

Really Right Stuff BA9 Overview

The Base Plate for Select Sony Alpha a7 Series Cameras from Really Right Stuff is designed with anti-twist flanges to keep the mounted camera from twisting. Once the dovetail plate is on, quick release functionality has been added to the camera. Also, this base plate is compatible with all Really Right Stuff clamps and most other Arca-type heads.

The CNC machined 6061-T6 aluminum plate maintains complete access to the battery door without obstructing the tilting LCD monitor of the camera, and an option for an L-component is available that will fit the plate's modular design and make a custom-fit L-plate.

This plate has been Type II black anodized, which makes it resistant to scuffs and scratches. Furthermore, the base plate has a laser-engraved center mark on the back to align it on a head.

Compatibility

Sony Alpha a9, a7 III, and a7R III
UPC: 818413026094

Really Right Stuff BA9 Specs

Mounting Screw1 x 1/4"-20 Male
Tripod Mounting Thread1 x 1/4"-20 Female
Quick Release Plate TypeArca-Type
Material of ConstructionAluminum
Length5.04" / 128.00 mm
Width2.40" / 61.00 mm
Height0.67" / 17.00 mm
Weight3.32 oz / 94 g
Packaging Info
Package Weight0.225 lb
Box Dimensions (LxWxH)5.3 x 3.8 x 0.8"
See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

question

does this have a screw hole so I can use it with a tripod?
Asked by: Bedri S.
Yes- and if you have an ARCA-Swiss tripod head then you can mount this directly to the tripod without the need for an additional plate.
Answered by: Laird
Date published: 2019-06-25

question

Can I use RSS base plate with Techart Pro Auto Focus adaptor? Thanks.
Asked by: Sam C.
The base plate will have no effect on the Techart Pro adapter. You can use both.
Answered by: Jacob C.
Date published: 2019-03-20

will this work on an a7r iv?

will this work on an a7r iv?
Asked by: Cody
No.
Answered by: Rob
Date published: 2021-02-04

question

Will this work with the a7 III?
Asked by: Ara
RRS website says that it does fit the A7III however I have not tried this product on mine.
Answered by: Rob
Date published: 2019-02-26

Do I have to remove the battery door for this to ...

Do I have to remove the battery door for this to fit a7iii? I never take the battery out and charge my camera via usb. I don't want to move the door.
Asked by: Luis
No.
Answered by: Rob
Date published: 2021-01-18

Can I use this on a A7sii? All I care about is ...

Can I use this on a A7sii? All I care about is access to the battery for change-out.
Asked by: Steve
If it's the same body as the a7iii then my guess is yes
Answered by: Sunny
Date published: 2021-07-16

Does this work with the Manfrotto quick release ...

Does this work with the Manfrotto quick release plates? Some of these brackets don't.
Asked by: Jose
No, you need an Arca Swiss compatible head.
Answered by: Rob
Date published: 2021-01-27

question

Can I place a hand grip on the RRS L plate for sony a7r3?Can I attach it to the bar at the bottom of the base plate?
Asked by: ?? ?.
I have been using the a7RII RRS L plate (mostly without the L) for a couple of years. Combined with the Peak Design anchors, it was the perfect camera carry for me. So I was disappointed with the RRS plate on my new a7RIII; missing the attachment point on the lower right. I was ready to have a machine shop mod one for me but; I found a pretty good alternative.The new RRS plate has a hex tool slot (which is handy but not necessary) I found that by attaching the PD anchor to the strap attachment in the base and feeding it through the hex key slot; voila! a pretty well balanced carry. It could be better an inch to the right but it works much better than any other combo I tried. I am not sure this would work with a hand strap but you could give it a try.
Answered by: Michael P.
Date published: 2019-01-10
  • y_2021, m_7, d_27, h_19CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.18
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_10
  • loc_en_US, sid_1334069, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo

Close

Close

Close