What file formats do you support?

We support over 100 file formats including images (JPG, PNG, GIF, WebP, TIFF), documents (PDF, DOC, DOCX, TXT), videos (MP4, AVI, MOV), audio (MP3, WAV, FLAC), and many more specialized formats.

Yes, absolutely. We use enterprise-grade encryption for all file transfers. Your files are automatically deleted from our servers after conversion, and we never store or access your personal data.

What is the maximum file size?

The maximum file size for free users is 100MB per file. Premium users can convert files up to 1GB. For larger files, we recommend our batch processing feature.

How long does conversion take?

Most files convert in under 30 seconds. The exact time depends on file size and format complexity. Our advanced algorithms ensure the fastest possible conversion while maintaining quality.

Can I convert multiple files at once?

Yes! Our batch processing feature allows you to upload and convert up to 50 files simultaneously. This is perfect for bulk conversions and saves significant time.

Do I need to create an account?

No account is required for basic conversions. However, creating a free account gives you access to batch processing, file history, and priority support.

CR2 to SUN

Drag, drop, and convert your files with ease.

1. Add Your Files

Drag & drop or paste files here

CR2 (Max. 10MB) • Up to 5 files in guest mode

Choose Files

Or upload from:

Temporary file processingFiles are uploaded for processing and are not retained as permanent storage. Read our File Processing & Retention Policy.

2. Conversion Settings

Convert From

Convert To

Image options

Width (px)

Height (px)

Strip image metadata (EXIF, etc.)

Advanced Options

Quality

Instant download after conversion

Why Choose Our Converter?

Convert Canon CR2 raw photos to SUN format quickly for legacy visualization and device compatibility.

Fast RAW to SUN

Direct browser conversion optimized for single-file CR2 decoding and SUN raster export in seconds.

Preserve Raw Detail

Retains sensor-derived tonal range and full-resolution raster output when possible for accurate SUN rendering.

Legacy Format Support

Produces SUN files usable by legacy viewers and scientific tools that require Sun Raster images.

Client-Side Processing

CR2 decoding occurs in your browser memory so source files do not upload to remote servers by default.

Adjustable Export

Choose output bit depth and color conversion options to match SUN viewers or downstream processing.

Batch-Friendly

Process multiple CR2 files in groups with predictable memory usage for efficient device sharing.

Frequently Asked Questions

Find answers to common questions about our file conversion service

Still have questions?

Can't find the answer you're looking for? Our support team is here to help.

Performance Estimates

Estimated conversion times based on typical hardware.

Conversion Speed Benchmarks

1-3 seconds

12 MP image processing

12 MP, 4000x3000

Fast

3-6 seconds

24 MP image processing

24 MP, 6000x4000

Moderate

8-15 seconds

48 MP image processing

48 MP, 8000x6000

Slow

Batch Conversion Estimates

Batch Size	Total Time	Avg per Image	Efficiency
10 images (12 MP each)	20-40 seconds	2-4 seconds	High
50 images (12 MP each)	1.5-3 minutes	1.8-3.6 seconds	High
100 images (12 MP each)	3-6 minutes	1.8-3.6 seconds	Moderate
200 images (12 MP each)	6-12 minutes	1.8-3.6 seconds	Moderate

Browser Compatibility

Format support across all major browsers

Support Across Browsers

Chrome

Supported

Full Support

Firefox

Supported

Full Support

Safari

Supported

Full Support

Edge

Supported

Full Support

Advanced Format Features Support

Features	Chrome	Firefox	Safari	Edge
Alpha Channel
ICC Profiles
EXIF Metadata
16-bit Depth

Device Compatibility

Seamless conversion across desktop, mobile and tablet

Desktop

Fast multi-core processing
Batch upload support

Mobile

Responsive mobile browser workflow
Instant photo conversion

Tablet

Full tablet browser support
Touch-friendly interface

Source vs Target Format

Key technical differences between formats

Feature	Source Format	Target Format
Compression	High efficiency	Uncompressed
File Size	Small	Large
Quality	High (compressed)	Lossless
Transparency	Supported	Supported
Metadata	EXIF, ICC	EXIF, ICC
Primary Use	Web delivery	Editing & print

How to Convert Files

Follow these simple steps to convert your files

Upload Source File

Select or drag and drop your source files.

Adjust Settings

Choose resolution or color options if needed.

Convert

Click convert to process files locally in browser.

Download Result

Save your converted files or ZIP archive.

Ready to Convert Your Files?

Use our high-speed converter to process your images now.

Start Converting Now

Tips and Best Practices

Optimize your conversion workflow with technical recommendations.

Prepare CR2 for Export

Convert proprietary Canon CR2 to a linear TIFF if you need non-destructive edits preserved before SUN export
Apply lens corrections in RAW editor because SUN export flattens baked-in pixels and loses adjustment stacks
Embed an sRGB or target ICC profile in the working raster prior to SUN encoding to reduce color mismatches
Resolve noisy high-ISO CR2 frames with denoise filters before exporting to SUN to avoid amplifying sensor artifacts
Flatten any extra adjustment layers in the interim TIFF; CR2 adjustment parameters cannot be serialized into SUN

SUN Export Options

Choose 8-bit per channel SUN for maximum viewer compatibility on legacy systems
Select higher bit-depth SUN only when destination tools explicitly accept 16-bit raster data
Prefer uncompressed SUN when archival fidelity is required, accepting larger file sizes
Use ZIP packaging for bulk SUN files to reduce transfer size to mobile recipients
Name files with clear metadata hints (date_camera_resolution) since SUN headers may omit MakerNotes

Verify Post-Conversion

Open exported SUN in ImageMagick or legacy Sun Raster viewers to validate header fields and pixel integrity
Compare histograms between original CR2 render and SUN result to detect tone-mapping shifts
Check color accuracy on target devices using sRGB preview if the SUN reader ignores ICC profiles
Inspect file dimensions and pixel aspect ratio to ensure no unintended resampling occurred
Spot-check several images when batch converting CR2 sets to detect decode anomalies early

Device Sharing Guidelines

For mobile recipients, convert an additional PNG or JPEG copy because most phones lack native SUN support
Transmit SUN files via secure channels and include a viewer recommendation to help recipients open them
Limit batch sizes per transfer to 20–50 SUN files to avoid mobile download failures and memory spikes
Keep original CR2 archives intact for editing; SUN should be used for analysis or legacy tool consumption
When privacy matters, process CR2 locally on device so RAW data never leaves your system

Fast Processing

Close unused tabs for maximum throughput.

Client-Side Privacy

No media leaves your device.

Broad Compatibility

Output files work across all operating systems.

Pro Tip

For batch conversions, process in groups of 20-50 files to optimize memory usage and avoid browser slowdowns.

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