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Screenshots

  • HDRI Prep: VFX HDR Brackets screenshot 1
  • HDRI Prep: VFX HDR Brackets screenshot 2
  • HDRI Prep: VFX HDR Brackets screenshot 3
  • HDRI Prep: VFX HDR Brackets screenshot 4

About HDRI Prep: VFX HDR Brackets

Build a library of HDRI exposure brackets for your RICOH THETA V, Z1 or X, and fire them off on set in seconds. The THETA can shoot multi-exposure brackets, but setting them up in the official app is slow, and you can't save them to reuse later. HDRI Prep fixes that. Set up a bracket once, name it, file it under your show, and call it up whenever the lighting calls for it. BUILD BRACKETS THE WAY YOU THINK • Choose 3 to 19 photos, 1 to 3 stops apart. No need to set each exposure by hand. • Pick a center shutter speed, and the bracket spreads evenly above and below it. • Set aperture, ISO and color temperature for the whole bracket at once. Choices are limited to what your camera can actually do. ORGANIZED FOR PRODUCTION • Name brackets, group them by show, drag to reorder, and copy or move them between shows. • Each bracket is tinted by its color temperature, so tungsten and daylight setups stand out at a glance. ON SET • Live View, flat or as a 360° view you can drag around, to check the frame before you shoot. • A shot counter and timer while the bracket runs, and Cancel if you need to stop. • View the photos from that bracket the moment it finishes. • Browse the camera's photos, inspect them full screen or in 360°, share them to Photos, Files or AirDrop, or delete them from the camera. • Find nearby THETAs and join their Wi-Fi from the app. Cameras you've used are remembered. • Adjust the camera's shutter volume and sleep delay. TRY IT WITHOUT A CAMERA Demo Mode loads sample 360° brackets so you can explore every feature before you plug in a THETA. Works on iPhone, iPad and iPhone Duo, and includes a built-in Manual. GOOD TO KNOW • HDRI Prep connects over the camera's own Wi-Fi (the camera's access-point mode). • Shutter volume and sleep delay are saved to the camera itself, so they stay set even when HDRI Prep isn't running. • HDRI Prep focuses on bracketing. It isn't a replacement for the official THETA app, which works well alongside it. Built by a VFX artist for VFX artists. If "HDRI" and "THETA" mean something to you, this was made for you. HDRI Prep is not affiliated with or endorsed by RICOH. RICOH THETA is a trademark of Ricoh Company, Ltd. Site and Privacy Policy: https://squirrelfx.llc/hdri-prep.html

What’s new

Version 20261020.02 · Updated October 21, 2026

New in this release: • Demo Mode: no camera handy? Tap Try Demo Mode on the Camera Connection screen to explore the app with sample 360° brackets. Capture, Live View, Pictures and sharing all work. It ends when you connect a THETA. • Manual: a guide to every screen, in Settings. • Fixed: brackets more than 1 stop apart are now centered on the Center Shutter Speed. Before, they came out darker than intended. • Shot counter: the Capture button counts the photos as they're taken, with a tap and a flash for each exposure. • View Photos: after a bracket, opens just the photos it took. • Color temperature: each bracket is tinted with its color temperature, orange for warm light and blue for cool, in the list and the editor. • Liquid Glass Capture, Cancel and View Photos buttons that no longer cover the bracket's settings. • New camera status icon on the main screen, and a new app icon. • A standard Close button on every sheet, and a clearer highlight for the selected bracket on iPad and iPhone Duo. • VoiceOver and spelling fixes. • Requires iOS 17 or later.

App privacy

The developer, Squirrel FX LLC, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

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