icon FieldMonitor: Wireless Video Monitoring copyright © 2019 Adam J. Wilt  
A wireless video monitor for iPhone


turns your iPhone®, iPad®, or iPod touch® into a wireless picture monitor / waveform monitor / vectorscope / histogram. See exactly what your camera is doing, without tethering your camera — or yourself — to a hardwired monitor and set of ’scopes.

FieldMonitor works with compatible Fujifilm™, Panasonic™and Sony™ cameras, or with Teradek Cube, Clip, or VidiU™ transmitters.
  • Full-screen monitoring of your signal, with or without engineering ’scopes.
  • A full range of onscreen markers: frameline and mask with adjustable safe areas and aspect ratios; several grids, center markers, and a customizable crosshair.
  • Focus Assist with variable sensitivity and two display modes (with camera sources only, not Teradeks. On iOS 11, focus assist requires iOS 11.2 or later).
  • Use 3D LUTs to view camera images: use the built-in VLog-to-V709 LUT or import your own .cube LUTs (camera sources only).
  • On modern iDevices, you can also see a fully-adjustable false-color overlay for direct exposure verification.
  • H and V Image Flip.
  • Anamorphic desqueeze support for 1.33x, 1.5x, 1.8x, and 2.0x lenses.
  • With a compatible camera you also get start/stop, exposure, color balance, and focus controls, so you can maintain essential control even while recording (FieldMonitor provides a limited set of controls intended to supplement or replace on-camera adjustments while recording under Wi-Fi control. It does not replace Fujifilm’s Camera Remote, Panasonic’s Image App, or Sony’s Imaging Edge Mobile for more comprehensive control, configuration, playback, and image transfer).

Before buying FieldMonitor, test with your camera’s native Wi-Fi app: FieldMonitor can’t make your camera do anything that the camera’s native app can’t make it do! If you're not happy with how your camera’s native app performs or the camera controllability it allows, you won't be happy with FieldMonitor either.

  • FieldMonitor talks to your camera the same way your camera’s native app does. It will have the same range, resolution, reliability, and latency as the native app. If the native app performs poorly, then FieldMonitor will, too.
  • FieldMonitor only provides the same camera controls as the native app does. For example, if the native app doesn’t allow tap-to-focus, manual focus, face detection, in-camera peaking, or image mag with your camera, then FieldMonitor won't either. If you can’t set the focus point with the native app, you won’t be able to set it with FieldMonitor. If your camera won’t allow log shooting or Picture Profiles with the native app, it won’t allow log shooting or Picture Profiles with FieldMonitor.

FieldMonitor does not provide playback functions, menu controls, or image download capability, even if your camera’s native app does.

FieldMonitor is designed primarily for video recording. If you are taking still photos, you might prefer something like Cascable instead.

Current Version Compatibility & Capability

Source Type
Resolution (16x9 images)
Camera Control
Display LUTs &
Focus Assist
Fujifilm X-T3 (1080p/29.97) and X-T100 (720p/24) cameras only! 640x360 Yes Yes X-T3 only records 1080p/29.97. X-T100 only records 720p/24. No on-camera controls or displays; the camera body goes dead. No manual focus with focus-by-wire-lenses. No HDMI monitoring or recording. No tap-to-focus control in movie mode. No focus mag or peaking. Full details here. Latency: 2–3 frames @ 24fps typical.
Panasonic MFT Lumix cameras using Image App remote control; full-frame S1 & S1R are NOT supported
Yes Yes GH4s can’t record 10-bit when in Wi-Fi remote mode. Some cameras only transmit 320x180 images. Camera’s peaking display may not available while recording. Latency: 4 frames @ 24fps typical.
Sony “Smart Remote” cameras (A6300, A6500, A7Sii, A7Rii, etc.)
Yes Yes “Smart Remote” Sonys disable Picture Profiles and other features in Wi-Fi remote mode: no S-Log, no S&Q motion! No tap-to-focus control in movie mode. No focus mag or peaking. Latency: 5–6 frames @ 24fps typical.
Sony “Ctrl w/ Smartphone” cameras (A7iii, A7Riii, A9, A99ii, etc.)
640x360 Yes Yes S-Log works, S&Q motion works. No focus-area display or tap-to-focus control; no battery or storage display. No focus mag or peaking. Latency: 5–6 frames @ 24fps typical.
Sony* “Ctrl w/ Smartphone” cameras (cameras with * after their name in FieldMonitor: A9 version 5+, A7Riv, etc.)
Yes Yes S-Log works, S&Q motion works. No focus-area display or tap-to-focus control. No focus mag or peaking. Latency: 5–6 frames @ 24fps typical. 1024x576 in “PC Remote” mode only.
Teradek encoders
depends on Teradek settings;
480i to 1080p
No No Cube 100–600 series, VidiU, and Clip only. Latency: 4+ frames @24fps depending on encoder settings.

  • Audio monitoring is not possible with camera sources, only with Teradeks.
  • If your Sony lacks a mode dial to choose between stills and movies, you won't be able to switch modes using FieldMonitor.
  • FieldMonitor (like any other live monitoring and control Wi-Fi app) depends on having a clear Wi-Fi channel for communication. In areas with many busy Wi-Fi networks and/or sources of radio interference, performance cannot be guaranteed. Test for adequate performance using your camera’s native app before buying FieldMonitor!

Screenshots and Videos

Not all features and functions shown are available with every camera, in every mode, regardless of the iDevice being used.
  • Panasonics in manual-focus mode provide the richest set of Wi-Fi controls and functions.
  • Panasonics in AF mode and Sonys show fewer focusing controls. You can’t set the focus point on Sonys in movie mode.
  • Most “Ctrl w/ Smartphone” Sonys do not display focus area, battery level, or storage space.
  • Teradeks have no camera controls, LUT capability, or Focus Assist.
  • Older iDevices with A6 or earlier processors can’t show false color.

Full screen monitoring: camera controls at the edges, plus a focus-area rectangle when the camera provides it (Panasonics and Smart Remote Sonys only, and only in certain focusing modes).

Typical Panasonic controls in manual-focus mode
Typical Panasonic controls in manual-focus mode. Panasonics send storage and battery-level information. Camera battery level shown with PWR: label, iDevice battery shown with the i: label.

Typical Sony controls in manual-focus mode
Typical Sony controls in manual-focus mode. This Sony does not send storage or battery information, and the AF button only works in AF mode. iDevice battery shown with iPWR: label.

Display one or three ’scopes and set up how they should appear. There are frameline, mask, grid, center, and custom markers, too. You can hide or show camera controls, ’scopes, markers, and other embellishments as you see fit, simply by tapping the screen.

FieldMonitor with WFM and markers

False-color display allows setting each of the color levels (false color requires iDevices with A7 or later processors).

FieldMonitor false color display controls

Unsure where your focus is?

FieldMonitor normal image

Focus Assist gives you fully adjustable in-app sharpening, like an analog peaking control (Focus Assist is only available for camera sources, not for Teradeks).

FieldMonitor Focus Assist in peaking mode

Focus Assist’s Edge Mode really emphasizes where focus is placed.

FieldMonitor Focus Assis in Edge Mode

Focus Assist demo:

Anamorphic support? Sure! Pick your lens and your final cropped aspect ratio.

anamorphic, with controls

The 4-WAY display lets you see all the ’scopes alongside picture. A tap of the screen hides controls for a clear view.

4-way view

Many Panasonic cameras offer a peaking control in manual-focus mode (in STBY only for most cameras, though the GH5 displays it while recording).


With Panasonics in manual-focus STBY mode, you can magnify the focus area as both picture-in-picture...

PinP image mag

...and as a full-screen image.

fullscreen image mag

Use a LUT to properly view log images or to apply a look (camera sources only).

Display LUT

Version 4.1 reviewed by DSLRVideoShooter:

Version 4.1 reviewed by DansTube.tv in Australia:

Versión 4.1 revisada por Toni Galera en LookMediaSpain.com:

A quick demo of version 4.2, showing FieldMonitor’s Sony-specific operations:

A quick demo of version 3.0, showing Panasonic operations, ’scopes, and anamorphic settings:

See also Newsshooter.com's 2½ minute video on Wi-Fi WFM (FieldMonitor's predecessor) from Cine Gear Expo 2016. 

Your iDevice is a wireless video display with FieldMonitor

Dowload on the App Store

FieldMonitor is an independently-developed app, not a product of Fujifilm, Panasonic, Sony, or Teradek. Fujifilm, Panasonic, Sony, and Teradek are not responsible for FieldMonitor’s performance, suitability, or fitness for purpose.

iPad, iPhone, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc. Fujifilm and Camera Remote are trademarks of Fujifilm Corporation. Panasonic, Lumix, and Image App are trademarks of Panasonic Corporation. Sony and Imaging Edge Mobile are trademarks of Sony Corporation. Teradek, Cube, Clip, VidiU, and Bolt are trademarks of Teradek, a Vitec Group Brand.

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© 2019 Adam J. Wilt.  Last updated 2019.09.27