LumaPair for FITS
FITS Changes, Revealed.
Only for Mac
Free
Mac
Reveal changes between FITS images with Wipe, Blink, and Overlay. Shared display settings keep both views consistent, while your original files stay untouched.
Between two observations, a change appears.
LumaPair brings two FITS images onto one shared canvas so you can inspect visible changes with Wipe, Blink, and Overlay.
REVEAL WITH WIPE
Move a divider across the image to uncover differences between A and B.
OBSERVE WITH BLINK
Alternate between images at an adjustable pace. Pause and switch manually whenever you want a closer look.
INSPECT WITH OVERLAY
Blend two rendered images with an interactive opacity slider to inspect overlap and visible displacement.
KEEP THE DISPLAY CONSISTENT
Apply shared black and white points, Linear, Asinh, or Logarithmic stretch, and Grayscale or Aurora color. Pan and zoom through the shared view without repeatedly matching separate windows.
START WITH A DEMO
Explore every viewing mode with the built-in simulated image pair, then open your own supported FITS files.
LOCAL BY DESIGN
Image processing happens on your Mac. No account, cloud upload, advertising, or analytics is built into the app. Your original files remain unchanged.
SUPPORTED FILES
Uncompressed 2D FITS primary images and IMAGE extensions, up to 512 MiB per file. Supports BITPIX 8, 16, 32, 64, -32, and -64, with BSCALE/BZERO and integer BLANK handling. Reads the first supported image HDU.
PLEASE NOTE
Previews are sampled to a maximum dimension of 1024 pixels. LumaPair does not automatically register images, normalize different exposures or physical units, or perform scientific difference measurements. Use registered images for aligned inspection. Compressed FITS, data cubes, saved sessions, and report export are not supported in this version.
Requires macOS 14 or later. Available in English, French, Spanish, German, and Simplified Chinese. Works independently of FITS QuickLook Studio.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Receive two FITS images directly from the main app for comparison while preserving the selected HDU.
- Improved the top control area, A/B image information, and sidebar layout.
- Standalone file opening remains available, along with swipe, blink, and overlay comparison modes.
Main-app integration requires FITS QuickLook Studio 11.2.8 or later.
The developer, 海平 陈, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 海平 陈
- Size
- 3.1 MB
- Category
- Productivity
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
English and 4 more
- English, French, German, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Dongsheng Hu. All rights reserved.
