ERF to DivX Converter

ERF to DivX Converter

ERF is the Epson RAW File format — a 12-bit camera raw still shot by the Epson R-D1 and R-D1s rangefinders. DivX is a video codec, so this is a still-to-video conversion: your single raw photo becomes a short silent DivX clip that simply holds that one frame on screen for a set duration. It does not animate the photo and it adds no audio. If you only want a viewable picture, convert to a still image with ERF to JPG; choose DivX (or better, MP4) when you specifically need the image inside a video timeline.

ERF Format at a Glance

DivX Format at a Glance

How to Convert ERF to DivX

1. Upload Your ERF File: Drag and drop your .erf file onto the page or click "+ Add Files" to browse from your device. You can queue several at once.
2. Set Image Duration: Under Advanced Options, set the Duration (how long the still is shown, e.g. 5 seconds per frame) and a Background Color that fills any letterboxing.
3. Pick Resolution and Quality: Choose a Video resolution (keep original, or a fixed/preset size) and a Quality Preset such as Very High to balance sharpness against file size.
4. Convert and Download: Click "Convert" and download your DivX clip. No sign-up, no watermark.

Frequently Asked Questions

Why is my DivX file silent after converting from ERF?

Because ERF is a still photo, there is no soundtrack to carry over. This converter uses an image-to-video pipeline that holds your single frame on screen for the duration you set, with no audio track. If you need sound, add it afterward in a video editor.

Should I convert ERF to DivX or to MP4?

For sharing and modern playback, MP4 (H.264) is the safer choice — it plays natively in browsers, on phones, and in nearly every editor, whereas DivX is a dated MPEG-4 Part 2 codec aimed at older DivX-certified players. Use ERF to MP4 unless a specific device or library requires DivX.

Will I lose image quality going from a 12-bit raw to DivX?

Yes, some. The R-D1 records 12-bit raw with wide exposure latitude, and that gets baked down to standard 8-bit video color during conversion. The output looks fine on screen, but you lose the raw headroom you would have kept by editing the ERF first or exporting a still image instead.

What resolution should I choose for the output clip?

Keeping the original frame size preserves the most detail. The R-D1 sensor is about 3008 x 2000 pixels, so if your target player or timeline expects a standard size, pick a preset like 1920x1080 to avoid odd dimensions. In our testing, leaving "Keep original" selected produced the cleanest single-frame clip.

Can I open the resulting DivX file on any device?

DivX plays reliably in VLC, the free DivX Player, and most desktop media players. Native support on phones and in web browsers is patchy because DivX uses the older MPEG-4 ASP codec rather than H.264, which is another reason MP4 is the more portable choice.

I just want to view the photo — do I have to make a video?

No. If your goal is simply to see or share the picture, convert the raw to a standard image instead with ERF to JPG. A video only makes sense when you need the frame inside a clip or timeline.

Why does my DivX clip have white bars around the photo?

Because of an aspect-ratio mismatch. The R-D1 sensor shoots a 3:2 still (about 3008 × 2000), but common video sizes are 16:9 (such as 1920 × 1080), so fitting a 3:2 photo into a 16:9 frame leaves empty space at the top and bottom. The converter fills that padding with the Background Color control, which defaults to white — hence the bars. Set Background Color to a different shade if white doesn't suit, or choose a Video resolution whose shape matches your photo (or keep the original size) to avoid letterboxing altogether.

Is my file kept private during conversion?

Yes. Your ERF is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. There is no sign-up, no watermark, and files are never shared or made public.