How do I convert ERF to JPG?

Upload your ERF file above. It is converted to JPG automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.

Does converting ERF to JPG lose quality?

JPG is lossy, so some fine detail is discarded to make the file smaller. Raise the quality in Settings for a closer copy.

ERF or JPG: which should I use?

Use ERF for adjusting exposure and white balance with maximum latitude. Use JPG for photos you share, email, print or upload. Keep in mind the main drawback of JPG: no transparency, and every re-save loses a little more detail.

ERF is the RAW format of the Epson R-D1 rangefinder. It stores the unprocessed sensor data for maximum editing latitude, so most apps can’t show it as a normal picture.

Can I convert ERF to JPG without Photoshop or Lightroom?

Yes. The ERF file is opened on our servers, so you don’t need Photoshop or Lightroom or any other software installed. Upload the file, then download the finished JPG.

Is the ERF to JPG converter free?

Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

Convert ERF to JPG — Free Online ERF Converter

Convert ERF to JPG online at full resolution. Open camera RAW files without Photoshop or Lightroom; preview one free or batch-convert with Premium.

Drop your ERF file or click to browse

Why convert ERF to JPG?

JPG is supported far more widely than ERF, so the file is easier to open, share and upload.
JPG is made for photos you share, email, print or upload.
No Photoshop or Lightroom needed: the file is opened on our servers and you download a ready-to-use JPG.

What to expect when converting ERF to JPG

JPG uses lossy compression; raise the quality in Settings for a closer copy of the original.
The RAW file is developed at full resolution with your camera’s white balance. Keep the original ERF to re-edit exposure later.

ERF vs JPG

機能	ERF	JPG
氏名	Epson camera RAW	JPEG (Joint Photographic Experts Group)
Origin	Written by Epson cameras	Standardised in 1992
圧縮	Unprocessed sensor data	Lossy, adjustable quality
Transparency	いいえ	いいえ
アニメーション	いいえ	いいえ
色	12 to 16 bits per channel from the sensor	16.7 million colours (8 bits per channel)
Where it opens	RAW editors such as Lightroom; not browsers or most apps	All browsers, phones, computers and photo apps
こんな方に最適	adjusting exposure and white balance with maximum latitude	photos you share, email, print or upload
Main drawback	very large files that most apps can’t open	no transparency, and every re-save loses a little more detail

In short: choose ERF for adjusting exposure and white balance with maximum latitude; choose JPG for photos you share, email, print or upload.

Frequently asked questions

How do I convert ERF to JPG?: Upload your ERF file above. It is converted to JPG automatically (change the output format or quality in the Settings tab if you need to), then click Download. There is nothing to install.
Does converting ERF to JPG lose quality?: JPG is lossy, so some fine detail is discarded to make the file smaller. Raise the quality in Settings for a closer copy.
ERF or JPG: which should I use?: Use ERF for adjusting exposure and white balance with maximum latitude. Use JPG for photos you share, email, print or upload. Keep in mind the main drawback of JPG: no transparency, and every re-save loses a little more detail.
What is a ERF file?: ERF is the RAW format of the Epson R-D1 rangefinder. It stores the unprocessed sensor data for maximum editing latitude, so most apps can’t show it as a normal picture.
Can I convert ERF to JPG without Photoshop or Lightroom?: Yes. The ERF file is opened on our servers, so you don’t need Photoshop or Lightroom or any other software installed. Upload the file, then download the finished JPG.
Is the ERF to JPG converter free?: Yes. Convert, preview and download a single result without creating an account. Premium adds batch conversion (many files into one ZIP) and larger uploads.

ERF を JPG に変換でできること

始める前に、主な機能を確認してください。

Epson ERF RAW ファイルを共有可能な JPG に変換する
未処理のカメラショットを閲覧可能な写真に変換します
JPG 品質とファイルサイズの小さいバランスのバランスを取る
透明な領域の背景の塗りつぶしを設定する
多くの ERF ファイルをバッチで一度に変換します
どこでも開いて編集できる写真を入手

このツールを使用する

設定リファレンス

ERF を JPG に変換で使用可能なコントロール。

設定

出力形式ドロップダウン: Chooses the file type you download. The page opens on its own output format; switch to any other format before converting.オプション: JPGPNGWebPAVIFGIFTIFFBMPICOPDF
品質スライダーレンジ: 20–100 · デフォルト: 90: For JPG, WebP, AVIF and image-to-PDF output: higher keeps more detail but makes a bigger file; 60–80 suits most photos. Documents (Publisher, XPS, EPS…) become PDFs with every page and sharp text, with no quality setting.
ロスレスモードオン/オフ: For WebP and AVIF output: keeps every pixel exactly (best for logos, graphics and transparency) at the cost of a larger file.
背景の塗りつぶしカラーピッカー: For JPG, BMP and image-to-PDF output, which can’t store transparency: the colour that fills transparent areas (white by default).