An Android app, drawn before it is built

Mantra
Sony Remote

Three Sony cameras, one phone, one pair of hands. Each camera's picture on the phone, a key to jump between them, and a multiview that shows what is live and what is next.

In design. This page is the app before any of its code exists.

A sound healing evening filmed by three Sony cameras, the filmmaker holding a phone that shows all three
photograph in the making
The idea

One person, several cameras,
like jazz musicians

A gong bath, a concert, a talk on a boat: Marko often films alone or with a small crew, with three or more Sony cameras running and an Accsoon transmitter on each. The phone becomes the monitor and the remote for all of them.

01

The picture is sacred

The keys live in the black bands beside the 16:9 picture, never on it. A key is a word; its colour is its state.

02

One key, one camera

The lens keys of Mantra Manual Camera become camera keys: CAM 1, CAM 2, CAM 3. One tap and you see and steer that camera.

03

One experiment at a time

Each piece is tried on the real cameras, then kept, changed or dropped, and written in the experiment log. Nothing is built ahead.

The camera rail

The lens switcher, now a camera switcher

Same place, same logic as the L1 to L5 keys in Mantra Manual Camera. Under each key, in a whisper, the body it is. Green is the camera you are on. Grey is connected and waiting. Dark is a key with no camera behind it. A small red dot is the camera on air.

CAM 1 · WIDE
CAM1 · A7 V · Sony direct · 25 fps · ISO 800 · 1/50 · f/2.8
REC 00:00:00:00
the camera you are on connected, waiting no camera on this key on air (program)

Try it: tap CAM1, CAM2, CAM3. Tap SONY to swap the picture source, REC to roll.

Two sources per camera

Sony direct: the camera's own Wi-Fi picture and every setting (ISO, shutter, iris, white balance, tap to focus, photo, record). Accsoon: the clean HDMI picture from the CineView on the camera, with the everyday keys (record, shutter, focus) over Bluetooth at the same time. A double tap in the middle of the picture opens SOURCES, as in Mantra Monitor.

What a key does in each source

A key the current source cannot honour stays where it is and turns dark. ISO is dark in Accsoon mode, and REC still works there over Bluetooth. Your thumb always finds each key in the same place.

Multiview

Three cameras and the program, at one glance

Borrowed from OBS Studio, vMix and the ATEM switchers: the screen splits into four. Three quarters are the cameras, one quarter is what goes out. A red border and a red label mean live, on program. A green border means preview, the next shot waiting.

CAM1 · A7 V
PGM
CAM2 · a6600
CAM3 · A7 IV
program, live preview, next CUT, ready

Try it: tap a camera to put it on preview, then CUT. In the two-camera switcher, CUT swaps preview and program.

Where program sits

Top right, as in OBS and ATEM, where the program is always on the right. The cameras read in order: CAM1 top left, then CAM2 and CAM3 along the bottom.

Tally on every tile

The camera on air carries a red outline, and the camera on preview a green one. The same red dot sits on its key in the rail, so the state is the same everywhere.

Solo or with a director

Two ways to try: preview, then CUT (a director's habit), or one tap straight to program (a solo shooter's). We keep the one that feels right in the hand.

Connections

One phone has one Wi-Fi radio

Each camera's Direct Wi-Fi and each CineView Nano is its own little network, and a phone is on one network at a time. So the newer cameras join one shared network, the phone's hotspot or a small travel router, and the phone talks to all of them there. Bluetooth is a separate radio: every camera also gets its keys over it.

PHONE hotspot or travel router CAM1 · A7 V joins the shared network CAM2 · a6600 Bluetooth keys, Accsoon picture CAM3 · A7 IV joins the shared network CineView Nano CineView Nano CineView Nano
Wi-Fi: picture and every setting Bluetooth: record, shutter, focus, always HDMI: the clean picture into the Accsoon

The pale Accsoons are not reached by this phone: a phone holds one Nano at a time. A Nano feeds up to four phones, so a second operator can watch any camera on their own phone.

ONE CAMERA

Straight to the camera

The phone joins the camera's Direct Wi-Fi, or the Accsoon's. The simplest start, and the first experiment.

SEVERAL CAMERAS

One shared network

The phone's hotspot or a small travel router. The A7 IV and A7 V join it as for a computer's Remote Shoot; each gets its own address and sends its picture, so the multiview fills from the network. The a6600 cannot join: it comes in through its Accsoon and Bluetooth.

ALWAYS

Bluetooth beside it

A Bluetooth link to every camera for the everyday keys. It keeps working when Wi-Fi is busy with pictures.

Which cameras

From the a6600 to the A7 V

Sony's remote protocol, Camera Remote Command, covers both. The A7 V speaks its newer PTP 3 over a cable or the network. The a6600 speaks the older PTP 2, and only over a USB cable, so on its own it is steered by cable or by Bluetooth, and its picture comes through its Accsoon.

TierBodiesOver Wi-FiOver Bluetooth
NetworkA7 V, A7 IV (and the newer A7C II, a6700, FX3)on the shared network: picture, every setting, record, photo, tap to focus, several at oncerecord, shutter, focus, zoom
Cablea6600 (and a6400, a6100)Sony's protocol reaches it only by USB cable (PTP 2); over Wi-Fi only on its own network, one camera at a time; its picture through its Accsoonrecord, shutter, focus
Pictureany camera with HDMIthe clean picture through its Accsoon, one Nano per phoneSony bodies: record, shutter, focus
Mantra developed picture profile

The next level of picture
from an 8-bit Sony

A picture profile Marko designed for the Sony a6000 series and any Sony that records 8 bits: Cine 4 with the ITU709 Matrix, a lifted black gamma and a high knee. It looks finished out of the camera and still grades well, without the banding S-Log gives in 8 bits.

MANTRA · DESIGNED BY MARKO BOŠKO · MANTRA PRODUCTIONS

A filmmaker at golden hour under a banyan tree, holding a Sony a6600
photograph in the making

Why not S-Log, in 8 bits

256 STEPS

8 bits is small

Each colour channel has only 256 steps from black to white. That is enough for a finished picture, and not enough to stretch a flat one a long way.

S-LOG 2 · S-LOG 3

Log spreads them thin

S-Log squeezes 14 stops into those 256 steps, so a face or a sky gets only a few dozen of them. Grading pulls them apart and skies, walls and skin break into bands.

CINE 4 · ITU709

Mantra keeps them close

Cine 4 with the ITU709 Matrix records near the finished look, so the steps stay where the eye looks. The black gamma opens the shadows and the knee holds the highlights.

The profile

SettingMantraWhat it does
Black Level−5Sets the black a touch deeper, for a solid base under the lifted shadows.
GammaCine 4The cinema curve: soft highlights, more contrast in the darks than Cine 3, and close to the finished look.
Black Gamma RangeHighThe shadow lift reaches widely into the dark tones.
Black Gamma Level+7The most it goes: opens the shadows so there is detail to work with.
Knee ModeManualWe set the highlight compression ourselves.
Knee Manual Set Point105%The highest point: the knee touches only the brightest highlights.
Knee Manual Set Slope+5The gentlest slope: highlights roll off softly instead of clipping hard.
Color ModeITU709 MatrixTrue, broadcast-standard colours that match the Cine 4 curve.
Saturation+2A little more life in the colours, still natural on skin.
Color Phase0The hues as they are.
Color DepthDefaultAll six colours (R, G, B, C, M, Y) at 0.
WB ShiftDefaultNot on every body (the a6600 has none). Where it is, leave it at 0.
Detail Level−5Less in-camera sharpening: no halos, a filmic softness, more room in the codec.
Zebra 2 on bright white90%The stripes appear when a bright white reaches 90%: the edge of exposing to the right.
THE ORIGINAL
Marko's original table of the Mantra picture profile settings

Marko's own table of the profile, 25.10.2026.

Save the table

Setting it in the camera, step by step

Sony has two menus. The a6600 (and the a6000 series, the A7 III generation) has the old one, with tabs along the top. The Alpha 7 IV and the A7 V have the new one, with groups down the left. Choose your menu, then tap a step to see the camera's screen.

ILCE-6600MENU

    The screens are drawn after the camera's menu, not photographed; the names are Sony's English menu. Page numbers and the exact order differ a little between bodies and firmware.

    Storing it

    1. One slot, Mantra'sThe profile lives in the PP slot you edited and stays there through power-offs. Use PP5 (or any slot from PP1 to PP6) and keep PP7 to PP10 for S-Log and HLG.
    2. On the second bodySet the same numbers on every camera, so a6600 and A7 cut together. On a body with two Mantra variants, Copy in the profile's menu copies the slot.
    3. On a keyPut Picture Profile in the Fn menu, so Mantra and PP Off are one press apart.
    4. On the card (A7 IV, A7 V)Setup → Setting Reset/Save → Save/Load Settings saves every setting to the memory card, Mantra too. The a6600 has no such menu: this page and the table are its backup.
    Hands holding a Sony Alpha 7, thumb on the control wheel, the menu on its screen
    photograph in the making

    Shooting with it

    EXPOSE

    Bright, not clipped

    Open up until the zebra just begins on the brightest white you care about, then stop. The knee rolls off what is above it; the black gamma keeps the shadows clean.

    ISO · WHITE

    Low ISO, fixed white

    Cine 4 starts at the camera's lowest ISO. Set the white balance by hand (a custom white or Kelvin), never Auto, so shots match.

    GRADE

    A light touch

    The picture is close to finished. In Resolve: set the black, a little contrast, the white balance; no LUT needed. Grade it as Rec.709.

    A Sony Alpha 7 on a tripod filming a candlelit sound healing with gongs and singing bowls
    photograph in the making
    A laptop grading a warm sunset shot at night, a Sony a6600 and Alpha 7 beside it
    photograph in the making

    The Mantra Color Profile page →

    The kit

    What the app is built around

    An Accsoon CineView Nano on each camera, and for several cameras a small router that every camera and the phone join.

    A Sony camera on a small tripod with a wireless transmitter on its hot shoe and a coiled HDMI cable; a phone and a small travel router on linen beside it
    ABOUT €121

    Accsoon CineView Nano

    The camera's clean HDMI picture to the phone, 1080p60 on 5 GHz, about 60 ms, up to 150 m. One on each camera; up to four phones can watch one Nano.

    On Amazon.de →
    ABOUT €107

    GL.iNet Beryl AX travel router

    The shared network for several cameras: pocket-sized, Wi-Fi 6 on 5 GHz, runs from a USB-C power bank. Every camera keeps a fixed address.

    On Amazon.de →
    ABOUT €42

    Anker USB-C hub with Ethernet

    For the cable road: the a6600 over USB, a wired network, and power for the phone through the hub while it works.

    On Amazon.de →
    ABOUT €16

    Coiled micro HDMI cable

    From the camera to the Nano on its hot shoe: short, coiled, angled, nothing to snag. Micro HDMI suits the a6600 and a6700; the A7 bodies take a full-size HDMI cable.

    On Amazon.de →
    ABOUT €24

    SmallRig phone holder

    The phone on a tripod or a cold shoe, turning freely, so the multiview stands beside you while you film.

    On Amazon.de →

    One per camera

    Three cameras: three Nanos and three cables, one router and one phone. The phone holds one Nano at a time and the network cameras all at once.

    The cameras

    Bodies that join the shared network with Sony's newer protocol, so the multiview fills from them directly. The A7 V is not yet on Amazon.de.

    ABOUT €1,990

    Sony Alpha 7 IV

    Full frame, 4K 60p. Remote control over a cable, its own Wi-Fi or the shared network, with live view: the full tier.

    On Amazon.de →
    ABOUT €1,311

    Sony Alpha 6700

    The a6600's successor, APS-C, 4K 120p. Unlike the a6600 it joins the shared network, so it is a full multiview camera.

    On Amazon.de →
    ABOUT €121 EACH

    and a Nano on each

    The clean HDMI picture of any camera, the a6600 too, and the picture for a second operator's phone.

    On Amazon.de →

    Prices on Amazon.de, October 2026. Check the price on more than one site before you buy.

    The road

    One experiment at a time

    1. This pageThe app drawn and agreed, before code.
    2. One A7 V, Sony directPicture and record from one camera.
    3. One AccsoonThe CineView picture, record over Bluetooth.
    4. The a6600Its own Wi-Fi, its USB cable, its Bluetooth keys: what each gives, measured.
    1. Two cameras on one networkThe hotspot, two keys, switching.
    2. Three cameras and multiviewThe four tiles, preview and program.
    3. The switcherCUT and AUTO, with the tally everywhere.
    4. In the fieldA real session, then keep, change or drop.