也可将文件拖放到此处，单个文件最大 1 GB。
尼康电子格式（NEF）是一种RAW文件格式，包含由尼康相机拍摄的数码照片。它基本上是拍摄图像的数字底片，没有压缩或损失质量。
NEF格式是当前数字内容世界中的一个多媒体标准。而且它显示出以下的优点和缺点。
NEF是尼康相机独有的，是尼康的RAW文件格式。RAW图像文件，有时被称为数字底片，包含了相机传感器捕获的所有图像信息。
为了在Photoshop中打开NEF文件，该NEF文件必须有最新版本的Photoshop Camera Raw插件。如果你运行的是Photoshop CS5或更早的版本，这个插件的最新版本是不可用的，所以转换文件是在Photoshop中打开它进行编辑的唯一方法。
当用尼康数码相机拍摄图像时，它被记录为原始数据。如果相机格式被设置为JPEG，那么在以JPEG格式保存之前，这些原始数据会被处理和压缩。如果相机格式设置为NEF，则不进行处理，因此文件中存储了更多的色调和颜色数据。
如果NEF文件不能在Windows中打开，请安装Microsoft Camera Codec Pack，它允许使用NEF、DNG、CR2、CRW、PEF、RW2和其他RAW图像。NEF文件也可以用Able RAWer、Adobe Photoshop、IrfanView、GIMP、AfterShot Pro，以及可能还有其他流行的照片和图形工具打开。
阅读私人标准化技术总结或恢复由相机创建的 JPEG 预览,而无需更改或解密 RAW 来源。
NEF format guide
NEF is Nikon camera RAW data with sensor samples, previews, and Nikon-specific metadata.
Published still-image routes use the deployed ImageMagick and Ghostscript toolchain, with dedicated workflows for animation, camera RAW rendering, SVG tracing, and selected modern formats where the generic path is not sufficient.
Create TIFF for high-quality editing or JPG for a broadly viewable copy.
The public upload limit is 1 GB. Convertr does not reduce dimensions, duration, resolution, or output quality merely to manage worker load.
PNG and TIFF are useful lossless working targets. JPG is lossy and removes transparency; WebP and AVIF may be lossy or lossless. Preserve source pixel dimensions unless resizing is intentional.
Nikon Picture Controls and proprietary lens or color corrections may not match Nikon software.
These links come from the active conversion catalog, not from a generic list of possible formats.
Choose one of these implemented routes; a listed extension is not a promise that every codec variant will decode.
Check that the file opens in its original application, is not encrypted or DRM-protected, and really matches its extension. A damaged header, unsupported internal codec, missing linked asset, or mislabeled file can fail even when NEF is generally supported. Try a different published target only when it fits your goal; changing the extension by hand does not convert the file.