Aquatech REFLEX BASE - Nikon D850 (10188)

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product overview
product overview
  • Aquatech REFLEX BASE - Nikon D850 (10188)
  • Construction - Glass-filled Polycarbonate with 316 Stainless Steel & Hard Anodised Aluminium Controls
  • Controls – Dual Shutter Buttons
  • Weight - 1.6 Kg Housing Only
  • Depth Rating - 10 meters
  • Compatible with Aquatech M3 Pistol Grip, LUX Flash Housing and SYNC Transmitter Housing
  • The REFLEX Base is a control free water housing, allowing you to preset your camera settings before securing the camera inside the housing

Please Note: An additional purchase of a lens port is required to correctly use this product if you do not already own a current Aquatech P Series Lens Port.

Care and maintenance must be adhered to as per Aquatech's instructions to ensure this product works correctly. This includes inspecting and checking all seals before every use and re-applying silicone grease as required.

* Camera, lens ports and accessories are shown for demonstration purposes only and are not included.


The Aquatech REFLEX BASE - Nikon D850 is an underwater housing for the Nikon D850 camera. This housing features Aquatech's interchangeable P-Series and PD-Series Lens Port system which supports a vast range of lenses.

The REFLEX Base is a control free water housing, allowing you to preset your camera settings before securing the camera inside the housing, so you can focus on capturing the perfect composition while the camera selects the correct exposure.

The REFLEX is equipped with 2 quick release clips for closing and securing (with safety latches), an ergonomic zoom control, a ¼”-20 tripod mounting point, and 2 of our new electronic AF shutter release controls for effortless shooting in either portrait or landscape orientation.


Key Features of the Aquatech REFLEX BASE - Nikon D850 (10188)

  • Construction - Glass-filled Polycarbonate with 316 Stainless Steel & Hard Anodised Aluminium Controls
  • Controls – Dual Shutter Buttons
  • Weight - 1.6 Kg Housing Only
  • Depth Rating - 10 meters
  • Compatible with Aquatech M3 Pistol Grip, LUX Flash Housing and SYNC Transmitter Housing
  • The REFLEX Base is a control free water housing, allowing you to preset your camera settings before securing the camera inside the housing

Palm Stopper

Capturing video? The included palm stopper acts as a comfortable right hand grip for increased stability during video capture. It can also be replaced by another side handle (additional purchase) to allow for a firmer grip and improved stability.

Hinged Backplate

The new hinged back design on the REFLEX makes setup quicker and easier than ever before. It requires only 2 clips to secure and locks the camera into place perfectly every time.


Aquatech REFLEX BASE - Nikon D850 (10188) | Which AquaTech Lens Ports & Extensions are required for my Nikon DSLR Lens?

We know that finding the right combination of lens ports and extensions for the lenses you wish to use with the Aquatech REFLEX BASE - Nikon D850 (10188) can be a little tricky. We've compiled a guide below based on information from AquaTech for what is compatible with this housing, but we highly suggest checking AquaTech's website for the most up to date information*. The recommended accessories section on this page has the relevant products linked for your convenience and feel free to check out this page for our full range of AquaTech products.

If you are still unsure then you can rest easy, as our staff are on-hand and ready to help you in any way they can! All you need do is reach out and contact us via our contact form, by giving us a call, or by visiting your local digiDirect store.

Nikon F-mount Zoom Lenses Compatible with the Aquatech REFLEX BASE - Nikon D850 (10188) :

  • Nikon 8-15mm f/3.5-4.5 ED Fisheye
    Lens Length: 85mm
    AquaTech Lens Port: PD-75
    or PD-85
    *Option for use with PD-85 + P-30EX (Below water)
    AquaTech Zoom Gear: N/A
  • Nikon 10-24mm F/3.5-4.5G ED
    Lens Length: 87mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Nikon 18-55mm f/3.5-5.6
    Lens Length: 74mm
    AquaTech Lens Port: P-90
    AquaTech Zoom Gear: N/A
  • Nikon 14mm f2.8 AF D ED
    Lens Length: 87mm
    AquaTech Lens Port: PD-65 with P-30Ex,
    PD-85 with P-30Ex (larger dome port option)
    AquaTech Zoom Gear: N/A
  • Nikon 12-24mm f4
    Lens Length: 90mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Nikon 14-24mm f2.8
    Lens Length: 131.5mm
    AquaTech Lens Port: PD-140
    or PD-85 + P-70 EX
    AquaTech Zoom Gear: NZ 14-24mm f/2.8
  • Nikon 16-35mm f4
    Lens Length: 128mm
    AquaTech Lens Port: P-130
    or PD-140 (dome port option)
    PD-85 + P-70 EX (dome port option)
    AquaTech Zoom Gear: NZ 16-35mm f/4
  • Nikon 17-35mm f2.8
    Lens Length: 106.5mm
    P-120
    or PD-140 (dome port option)
    AquaTech Zoom Gear: NZ 17-35mm f/2.8
  • Nikon 17-55mm f2.8
    Lens Length: 130mm
    AquaTech Lens Port: P-65 with P-70Ex
    AquaTech Zoom Gear: N/A
  • Nikon 24-70mm f2.8
    Lens Length: 153.5mm
    AquaTech Lens Port: P-160
    AquaTech Zoom Gear: NZ 24-70mm f/2.8
  • Nikon 24-70mm f2.8 E ED VR
    Lens Length: 170mm
    AquaTech Lens Port: P-190
    AquaTech Zoom Gear: NZ 24-70mm f/2.8 VR
  • Nikon 70-200mm f2.8 VR
    Lens Length: 215.5mm
    AquaTech Lens Port: P-215
    AquaTech Zoom Gear: N/A
  • Nikon 70-200mm f2.8 VR II
    Lens Length: 205.5mm
    AquaTech Lens Port: P-215
    AquaTech Zoom Gear: NZ 70-200mm f/2.8 V2
  • Nikon 70-200mm f/2.8 E FL VR
    Lens Length: 208mm
    AquaTech Lens Port: P-215
    AquaTech Zoom Gear: NZ 70-200mm f/2.8 FL VR
  • Nikon 70-200mm f4 VR
    Lens Length: 179mm
    AquaTech Lens Port: P-190
    AquaTech Zoom Gear: NZ 70-200mm f/4

Nikon F-mount Prime Lenses Compatible with the Aquatech REFLEX BASE - Nikon D850 (10188) :

  • Nikon 10.5mm f/2.8
    Lens Length: 62.5mm
    AquaTech Lens Port: PD-50
    AquaTech Zoom Gear: N/A
  • Nikon 16mm f2.8
    Lens Length: 58mm
    AquaTech Lens Port: PD-50
    or PD-85 (dome port option)
    AquaTech Zoom Gear: N/A
  • Nikon 20mm f1.8 G ED
    Lens Length: 79mm
    AquaTech Lens Port: P-90
    or PD-75
    or P-30EX + PD-85 (dome port option)
    AquaTech Zoom Gear: N/A
  • Nikon 20mm f2.8
    Lens Length: 42.5mm
    AquaTech Lens Port: P-65 (DX format only)
    or PD-85 (dome port option)
    AquaTech Zoom Gear: N/A
  • Nikon 24mm f1.4 G ED
    Lens Length: 88.5mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Nikon 24mm f/1.8 G ED
    Lens Length: 84mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Nikon 24mm f2.8
    Lens Length: 46mm
    AquaTech Lens Port: P-65
    AquaTech Zoom Gear: N/A
  • Nikon 28mm f2.8
    Lens Length: 44.5mm
    AquaTech Lens Port: P-65
    AquaTech Zoom Gear: N/A
  • Nikon 28mm f1.8 G
    Lens Length: 81mm
    AquaTech Lens Port: P-90
    or PD-85 with P-30Ex (dome port option)
    AquaTech Zoom Gear: N/A
  • Nikon 35mm f1.4 G
    Lens Length: 89.5mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Nikon 35mm f1.8 G DX
    Lens Length: 54mm
    AquaTech Lens Port: P-65
    AquaTech Zoom Gear: N/A
  • Nikon 35mm f2
    Lens Length: 43.5mm
    AquaTech Lens Port: P-65
    AquaTech Zoom Gear: N/A
  • Nikon 50mm f1.4
    Lens Length: 42.5mm
    AquaTech Lens Port: P-65
    AquaTech Zoom Gear: N/A
  • Nikon 50mm f1.8
    Lens Length: 39mm
    AquaTech Lens Port: P-65
    AquaTech Zoom Gear: N/A
  • Nikon 58mm f/1.4 G
    Lens Length: 70mm
    AquaTech Lens Port: P-80
    AquaTech Zoom Gear: N/A
  • Nikon 85mm f1.4G
    Lens Length: 84mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Nikon 85mm f1.8G
    Lens Length: 74mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Nikon 105mm f/1.4E ED
    Lens Length: 107mm
    AquaTech Lens Port: P-120
    AquaTech Zoom Gear: N/A
  • Nikon 300mm f/4 E PF ED VR
    Lens Length: 147mm
    AquaTech Lens Port: P-160
    AquaTech Zoom Gear: N/A

Sigma F-mount Lenses Compatible with the Aquatech REFLEX BASE - Nikon D850 (10188) :

  • Sigma 8mm f/3.5 circular fisheye
    Lens Length: 68.6mm
    AquaTech Lens Port: PD-65
    AquaTech Zoom Gear: N/A
  • Sigma 8-16mm f/4.5-5.6
    Lens Length: 103.5mm
    AquaTech Lens Port: PD-50 with 2 x P-30Ex’s
    AquaTech Zoom Gear: N/A
  • Sigma 10-20mm f/3.5
    Lens Length: 79.5mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Sigma 14mm f/1.8 ART
    Lens Length: 126mm
    AquaTech Lens Port: PD-140
    AquaTech Zoom Gear: N/A
  • Sigma 15mm f/2.8 EX DG fisheye
    Lens Length: 85mm
    AquaTech Lens Port: PD-85
    AquaTech Zoom Gear: N/A
  • Sigma 12-24mm f/4 ART
    Lens Length: 132mm
    AquaTech Lens Port: PD-140
    AquaTech Zoom Gear: SGZ 12-24mm ART
  • Sigma 12-24mm f/4.5-5.6
    Lens Length: 102mm
    AquaTech Lens Port: PD-85 + P-30Ex
    AquaTech Zoom Gear: N/A
  • Sigma 14-24mm f/2.8 ART
    Lens Length: 135mm
    AquaTech Lens Port: PD-140
    AquaTech Zoom Gear: TBA
  • Sigma 18-35mm f/1.8 ART
    Lens Length: 121mm
    AquaTech Lens Port: P-130
    or PD-140 (dome port option)
    AquaTech Zoom Gear: SGZ 18-35mm ART
  • Sigma 24-35mm f/2 ART
    Lens Length: 122mm
    AquaTech Lens Port: P-30 Ex + P-100
    AquaTech Zoom Gear: N/A
  • Sigma 20mm f/1.4 ART
    Lens Length: 130mm
    AquaTech Lens Port: PD-140
    AquaTech Zoom Gear: N/A
  • Sigma 30mm f1.4 DC ART
    Lens Length: 59mm
    AquaTech Lens Port: P-65
    AquaTech Zoom Gear: N/A
  • Sigma 24mm f1.4 DG ART
    Lens Length: 91mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Sigma 35mm f1.4 DG ART
    Lens Length: 94mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Sigma 50mm f/1.4 DG ART
    Lens Length: 100mm
    AquaTech Lens Port: P-120
    AquaTech Zoom Gear: N/A
  • Sigma 50mm f/1.4 EX DG HSM
    Lens Length: 69mm
    AquaTech Lens Port: P-80
    AquaTech Zoom Gear:N/A
  • Sigma 85mm f/1.4 DG HSM ART
    Lens Length: 128mm
    AquaTech Lens Port: P-130
    AquaTech Zoom Gear: N/A
  • Sigma 85mm f/1.4 EX DG HSM
    Lens Length: 86mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A

Tokina F-mount Lenses Compatible with the Aquatech REFLEX BASE - Nikon D850 (10188) :

  • Tokina 10-17mm f/3.5-4.5
    Lens Length: 71.7mm
    AquaTech Lens Port: PD-65 (without hood),
    PD-75 (with hood -vignetting may occur),
    PD-85 for either model (below water)
    AquaTech Zoom Gear: N/A
  • Tokina 11-16mm f/2.8
    Lens Length: 89mm
    AquaTech Lens Port: P-100 Flat Port,
    PD-65 with P-30Ex (Above water),
    PD-85 with P-30Ex (Below water)
    AquaTech Zoom Gear: TZ 11-16mm f/2.8
  • Tokina 11-20mm f/2.8
    Lens Length: 92mm
    AquaTech Lens Port: P-100 Flat Port,
    PD-65 with P-30Ex (Above water),
    PD-85 with P-30Ex (Below water)
    AquaTech Zoom Gear: TBA

Samyang/Rokinon F-mount Lenses Compatible with the Aquatech REFLEX BASE - Nikon D850 (10188) :

  • Samyang 8mm f/3.5 Fisheye (No Hood)
    Lens Length:78mm
    AquaTech Lens Port: PD-75
    AquaTech Zoom Gear: N/A
  • Samyang 14mm T 3.1
    Lens Length: 87mm
    AquaTech Lens Port: PD-65 with P-30Ex above water
    or PD-85 with P-70Ex for below water
    AquaTech Zoom Gear: N/A
  • Samyang 24mm T 1.5
    Lens Length: 83mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Samyang 35mm T1.5
    Lens Length: 78mm
    AquaTech Lens Port: P-100
    AquaTech Zoom Gear: N/A
  • Samyang 85mm T1.5
    Lens Length: 73mm
    AquaTech Lens Port: P-80
    AquaTech Zoom Gear: N/A

Tamron F-mount Lenses Compatible with the Aquatech REFLEX BASE - Nikon D850 (10188) :

  • Tamron 15-30mm f/2.8 Di VC
    Lens Length: 145mm
    AquaTech Lens Port: PD-75 with P-70EX
    AquaTech Zoom Gear: N/A



AquaTech Port Selection Information

  • PD-65: This is a dome port designed for the Fisheye lens and primarily used above water.
  • PD-135: This is a dome port primarily designed for the Nikon 14-24mm f2.8 & 16-35mm f4.
  • PD-85: This is a large dome port with an element machined from a 9" Diameter dome. This is primarily used for underwater and over/under shots. The port has an outer diameter of 8" and an overall height of 4".
  • Flat Element Ports: All other ports are equipped with flat elements. For best results the lens element should be as close as possible to the port element. These ports are used mainlyfor above water shooting. All Flat Elements have SAR coating.
  • P-30Ex, P-50Ex and P-70Ex: These are extension rings that increase the length of the port by 30mm or 70mm. The ring screws onto the housing and the port screws into the ring.

* list compiled March 2021, guide only.


  • MPN - 17819
  • GTIN - 810778014150
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Material of Construction Glass-filled Polycarbonate with 316 Stainless Steel & Hard Anodised Aluminium Controls
Controls Dual Shutter Buttons
Dimensions Width: 210mm
Height:190mm
Front to Back: 135mm
Weight 1.6 Kg (housing only)
Depth Rating 10 metres
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What’s In The Box
  • Aquatech REFLEX BASE - Nikon D850 (10188)
  • Cable Release
  • Camera Plate
  • Instructions
  • Tool kit
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