3FR to ICO Converter
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Supports: 3FR
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Need help?3FR to ICO Converter
3FR is Hasselblad's raw still-image format, written straight off the sensor of its medium-format cameras and digital backs. ICO is the Windows icon container — a tiny multi-resolution image used for app icons and website favicons. This converter renders the raw photo to a standard image and downscales it into an icon, so a high-megapixel Hasselblad capture becomes a 256-pixel (or smaller) icon you can ship in a .ico file.
3FR Format at a Glance
| Property | Value |
|---|---|
| Full name | Hasselblad 3F RAW |
| Type | Camera raw (still image) |
| Origin | Hasselblad medium-format cameras and digital backs (H-series, CFV) |
| Container | TIFF-based |
| Bit depth | High — typically 14-bit, up to 16-bit per channel on Hasselblad backs |
| Color | Single-channel mosaic sensor data, demosaiced on render |
| Best for | Maximum latitude in editing; archival of the original capture |
| Edited with | Hasselblad Phocus; also Lightroom, Capture One, RawTherapee |
ICO Format at a Glance
| Property | Value |
|---|---|
| Full name | Windows Icon |
| Type | Multi-image icon container |
| Introduced | Windows 1.0 (1985) |
| Max dimension | 256 × 256 pixels per image |
| Multi-size | Yes — one file can hold several sizes and color depths |
| Color depth | Monochrome through 32-bit TrueColor with 8-bit alpha (Windows XP+) |
| PNG inside | Supported since Windows Vista (recommended for 256 × 256) |
| Best for | App icons, favicon.ico, desktop and taskbar icons |
How to Convert 3FR to ICO
- Upload Your 3FR File: Drag and drop your
.3frfile onto the page or click "+ Add Files." You can queue several Hasselblad raws and convert them in one batch. - Set the Image Resolution: Open Advanced Options and choose an Image resolution preset — 256 (the ICO maximum), or a smaller size like 32 or 16 for a classic favicon. Each preset becomes one image inside the icon.
- Tune Colors and Conversion Quality: Optionally limit the Colors palette for a smaller file, or raise Conversion Quality for a cleaner demosaic of the raw before it is downscaled.
- Convert and Download: Click "Convert" and download your
.ico. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark.
Frequently Asked Questions
Will I lose quality converting 3FR to ICO?
A great deal, by design. A 3FR holds a full-frame, high-bit-depth medium-format capture; an ICO image is at most 256 × 256 pixels at 8 bits per channel. The wide dynamic range and high resolution of the raw are baked down to a standard 8-bit image and shrunk to icon size. That is expected for icon use — but it means an ICO is never a substitute for viewing or printing the original photo.
Should I convert 3FR to ICO, or to JPG/PNG instead?
ICO only makes sense if you actually need a Windows icon or a favicon.ico. To view, share, or edit the photograph itself, convert to a full-size image instead — see 3FR to JPG for a compact viewable photo or 3FR to PNG for a lossless one.
What icon sizes can a single ICO hold?
The ICO format is a container: one file can bundle several images at different sizes and color depths, and Windows picks the closest match for each context. The per-image ceiling is 256 × 256. Favicons are commonly built around 16 × 16, 32 × 32, and 48 × 48, with a 256 × 256 image added for high-DPI displays.
Is ICO a good format for a website favicon?
Yes — it is the most broadly compatible favicon format. Because an ICO can carry several sizes in one file and has wider browser support than single-size alternatives, MDN recommends favicon.ico when cross-browser coverage matters.
Does the converter keep my photo's colors accurate?
In our testing, the renderer demosaics the 3FR and maps it to standard sRGB before downscaling, so colors look correct at icon size. It does not, however, apply the creative edits or lens corrections you would get from Hasselblad Phocus — for a color-managed master, render the raw in a dedicated editor first, then convert that image to ICO.
What happens to my files after conversion?
Your 3FR is uploaded over an encrypted connection, converted on our servers, and deleted automatically after a few hours. Nothing is shared, made public, or watermarked, and no account is required.