Convert Sony RAW 2 (.sr2) to Portable Network Graphics (.png) online for free. Fast, secure image conversion with no watermarks or registration.
Upload your .sr2 file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .png file when it's ready.
PNG provides lossless compression that perfectly preserves the output of Sony SR2 RAW processing. For the pioneering cameras that created SR2 files — the APS-C-sensor DSC-R1, the four-color-filter DSC-F828, and the compact DSC-V3 — PNG captures their distinctive imaging character with mathematical precision at efficient file sizes.
Unlike JPEG, PNG introduces zero compression artifacts. Every pixel processed from Sony's CCD and CMOS sensors is preserved exactly. This makes PNG ideal for archiving processed SR2 photographs, creating reference copies, and delivering images where quality fidelity is more important than file size.
PNG combines lossless quality with practical file sizes and universal support. For SR2 archives, this means perfect preservation of Sony's distinctive CCD color rendering in a format 40-60% smaller than BMP. Every modern platform reads PNG natively — no specialized software required.
As SR2 support in RAW processors diminishes, PNG creates permanent, pixel-perfect copies of processed photographs. The DSC-R1's detailed APS-C output and the F828's rich CCD color are preserved exactly, accessible on any device indefinitely.
The conversion reads the SR2 container, extracts the CCD/CMOS Bayer data, applies Sony's color matrix and white balance, then encodes with PNG's DEFLATE lossless compression. 8-bit or 16-bit depth is available. A 10 MP DSC-R1 at 8-bit produces PNG files of approximately 12-18 MB (vs 30 MB uncompressed BMP). The DSC-F828 at 8 MP produces 10-15 MB PNGs. ICC profiles can be embedded for color management.
PNG compression is mathematically lossless — decompressed pixels are bit-for-bit identical to the processed input. The warm, saturated CCD rendering of Sony's F828 and V3, and the detailed CMOS output of the R1, are preserved with absolute precision. For the 8-10 MP resolution range of SR2 cameras, PNG files are compact and practical.
| Device | SR2 | PNG |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
SR2 to PNG is the optimal lossless format for Sony pre-Alpha photography. It preserves the distinctive character of pioneering cameras like the DSC-R1 and DSC-F828 with perfect quality at efficient file sizes.
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処理後にファイルを自動削除
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すぐに変換を開始
どこでも動作
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| Native |
| 特徴 | SR2 | PNG |
|---|---|---|
| 正式名称 | Sony RAW 2 | Portable Network Graphics |
| 拡張子 | .sr2 | .png |
| 最適な用途 | Sony Alpha (early) | Lossless quality |