Convert SR2 to FITS

Batch convert SR2 RAW files to FITS in one run. reaConverter handles entire photo libraries with the same settings applied throughout.

reaConverter transforms SR2 files to FITS quickly and reliably. Drag in folders, set your options, click Convert, done. No cloud accounts, no file uploads, no complicated setup. Just install and start converting. Process entire photo shoots with consistent exposure and color settings.

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SR2 to FITS
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SR2FITS

How to Convert Multiple SR2 Images to FITS?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately. You can also resize, crop, and adjust images during conversion.

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Install reaConverter

2. Load your SR2 files

Open reaConverter and add your SR2 files. You can load individual files, entire folders, or even nested subfolders.

Select SR2s from a folder or drag-and-drop them directly into the reaConverter window.

Load your SR2 files into reaConverter

3. Select FITS as output format

Pick FITS as output format and choose the destination folder where you want to save new .fits files.

Select FITS as output format

4. Start SR2 to FITS conversion

Press the Convert button and reaConverter takes care of the rest. Processing time depends on file size and volume.

Start Conversion

After processing, find all your new .fits files in the output location. The log shows details for each conversion.

SR2 to FITS: what carries over and what does not

SR2 files hold unprocessed sensor data, so white balance and exposure are still adjustable. Converting to FITS bakes those decisions into the pixels, and highlight recovery is no longer available afterwards. Set white balance and exposure before the run rather than after.

SR2 to FITS Converter

reaConverter offers the fastest, simplest solution for converting your SR2 files into FITS in seconds - all photos processed on your PC for maximum privacy and speed.

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Do more with your images

Converting SR2 images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

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User Reviews

Average User Rating:4.8
Last updated on August 08, 2026
"Essential for our astroimaging pipeline! reaConverter perfectly handles FITS files from our research telescope, preserving all WCS coordinates and photometric data during batch conversion to TIFF. Now we process 100+ deep-sky exposures nightly without losing critical metadata for our exoplanet studies!"
Joseph Wilson
Joseph Wilson
Satisfied Customer
"reaConverter makes FITS conversion incredibly easy. We batch convert astronomical images to standard formats for presentations and analysis, all automated through the command-line. It’s fast, reliable, and handles large datasets without issues."
Laura N.
Laura N.
Astrophysics Research Assistant
"We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works."
David R.
David R.
IT Solutions Architect
"So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!"
Kenneth D. Carter
Kenneth D. Carter
Satisfied Customer
"I run a small design agency, and reaConverter has saved me countless hours. The batch processing is lightning-fast, and the ability to convert hundreds of files into different formats at once is a game-changer. Highly recommend!"
Mark T.
Mark T.
Satisfied Customer
"Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines."
Rebecca Turner
Rebecca Turner
Marketing Agency CEO

SR2 to FITS Conversion: FAQ

What are SR2 files?

SR2 is a proprietary format used by Sony cameras to capture RAW images. Other similar formats used by Sony are ARW and SRF. Shooting in RAW mode is very appealing for professional photographers because it allows them to control to a larger extent how the image will look like. With compressed formats such as JPG, the camera uses a series of pre-defined settings in order to bring the image to a reasonably small format, but in the case of RAW images the camera captures as much as its sensors allow and the photographer can correct unwanted aspects during digital post-processing.

What are FITS files?

The FITS (Flexible Image Transport System) format is a standard format used particularly for storing, transferring and processing scientific images from fields such as astronomy. FITS was first launched as an open standard in the early 1980s and has gone through several subsequent upgrades. FITS files contain not just images, but also data related to photometry and spatial calibration, and information about the origin of the image. Similar formats include FIT and FTS.

Can reaConverter convert SR2 to FITS?

Yes! reaConverter instantly converts .sr2 to .fits with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert SR2 to FITS online?

If you only need to convert a few SR2 files to FITS format, feel free to try our free online free online SR2 to FITS converter — perfect for small batches with no installation needed!

How can I turn SR2 files into FITS on my computer?

The best way to change SR2s to FITSs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from SR2 to FITS.

How can I automate SR2 to FITS files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert SR2 files to FITS using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line sr2 to fits converter for batch processing.

What else can I do with reaConverter?

Convert RAW photosConvert PDF filesAdd watermark on imageChange format settingsChange DPI

SR2 and FITS: related conversions

Other ways to convert SR2 files, and other sources that convert to FITS.

SR2 to JPGSR2 to TIFFSR2 to PNGEIP to FITSERF to FITSFFF to FITS
All SR2 conversionsAll FITS conversions

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