Working with Phase One Cameras

With Cascable and Phase One, you can enjoy all of Cascable’s Pro features with your Phase One IQ4 digital back at no additional cost.

Connecting Your Camera

You can connect to your Phase One camera via WiFi or Ethernet. For details, follow the in-app instructions or consult our Phase One Connection Guide.

Unlocking Cascable Pro Features

The first time you connect your Phase One camera to Cascable, you’ll have the opportunity to register your camera’s connection to Cascable with Phase One. Once registered, and on subsequent connections to your Phase One camera, Cascable will enter “Phase One mode”. While in Phase One mode, all Cascable Pro features will be unlocked at no charge.

Cascable Pro includes many powerful features, including (but not limited to):

For a full overview of the features you’ll get with Cascable Pro, see our features page, and our dedicated Recipes page.

Phase One mode will stay active after disconnecting, so you can still work with your images without having your camera connected. However, it’ll deactivate if you connect a camera from another manufacturer until you connect your Phase One camera again. To use Cascable Pro features with other cameras, you’ll need to purchase Cascable Pro as usual.

Working with IIQ RAW Images

At present, whenever you display an IIQ RAW image in Cascable, you’re seeing a JPEG preview at a lower resolution than the full 150MP that the IQ4 can provide. The more RAM your iOS device has, the higher resolution this preview will be. For the very best results, a 2021 iPad Pro with the Apple M1 chip is recommended.

If your iOS device doesn’t have enough available RAM to render IIQ previews at all, you may see a “no entry” symbol instead. Don’t worry! While you won’t be able to preview these images, you’ll still be able to manage them as described below. For reliable IIQ preview rendering on iPhone, an iPhone XS or newer is recommended. On iPad, a 4th Generation iPad Air (introduced in late 2020) or 2nd Generation iPad Pro (introduced in mid 2017) is recommended.

When managing your IIQ RAW images (i.e., copying them to external storage, copying them to other locations on your iOS device, accessing them via the Files app, sharing them to other devices via AirDrop, and so on), Cascable always works with the original image file without modification or quality loss.

Support for IIQ RAW images by iOS itself and other apps may be limited, and your experience with IIQ RAW images in other iOS apps will vary.


In the future, updates to your Phase One camera and Cascable will bring even more features. Updates currently planned for Phase One cameras include:

In addition, Phase One users will benefit from continued updates to Cascable as we improve the app for all of our users.

Getting Help

For help with using the Cascable app itself, you can consult our various guides both here on our website and within the Cascable app. For additional help, contact us using the “Support” button at the bottom right of this page.

For help with using your Phase One camera or Capture One on your Mac or Windows computer, you can contact Phase One via their website.