MEF to MTV Converter

MEF to MTV — hassle-free conversion online

Drop files here. 1 GB maximum file size or Sign Up
to
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Privacy Protected

Convertio deletes MEF uploads right after processing. Converted MTV results are purged within 24 hours — your photos stay private.

Format Flexibility

MEF can convert to over OUT_COUNT formats on Convertio — MTV is just one option among many available targets.

Server-Side Power

Heavy MEF processing happens on Convertio servers, not your device. Get MTV results without slowing down your machine.

How to convert MEF to MTV

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose mtv or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your mtv file right afterwards

About formats

MEF is the proprietary RAW image format used by Mamiya medium-format digital cameras, introduced with the Mamiya ZD in 2004 and continued through subsequent models including the DM series. MEF files capture the unprocessed output from Mamiya's large-area CCD sensors — typically 48x36mm or larger — at 16 bits per channel, preserving the full dynamic range and color depth of the medium-format sensor before any demosaicing, white balance, or tonal processing takes place. The format uses a TIFF-based container that stores the raw Bayer-pattern data alongside embedded JPEG previews and extensive EXIF metadata including Mamiya lens identification, shutter speed, aperture, and metering information. Mamiya (later reorganized as Mamiya Digital Imaging and eventually merged into Phase One's operations) has a legacy stretching back to 1940 in medium-format film photography, and the MEF format represents the digital continuation of that tradition. One advantage is the medium-format sensor's inherent imaging qualities: the larger sensor area captures more light per pixel, producing lower noise floors, smoother tonal gradations, and a shallower depth-of-field rendering that medium-format photographers value for portrait, fashion, and landscape work. RAW flexibility is another practical strength — MEF files processed in Adobe Lightroom, Capture One, or dcraw allow photographers to apply modern demosaicing and noise reduction algorithms to these sensors, often extracting noticeably better results than the camera's original processing offered.
Developer: Mamiya
Initial release: 2004
MTV is a simple raster image format created by Mark T. VandeWettering for the MTV Ray Tracer, a ray tracing program released in 1988 as one of the early publicly available ray tracers distributed through Usenet. The format stores 24-bit RGB images with a minimal text header followed by raw pixel data. The header consists of a single line containing the image width and height as ASCII integers, followed immediately by the pixel data where each pixel occupies three bytes (red, green, blue) arranged in row-major order from top-left to bottom-right. The MTV Ray Tracer itself was significant in the history of computer graphics — distributed freely via the comp.graphics Usenet newsgroup, it introduced many programmers and students to the principles of ray tracing: ray-object intersection, reflection, refraction, shadows, and recursive shading. The MTV format was the program's native output, and its simplicity made it easy for users to write custom viewers and converters on whatever platform they had access to — a practical necessity in the fragmented Unix workstation landscape of the late 1980s. One advantage is extreme implementation simplicity: the format can be read in a handful of lines of code in any programming language, with no libraries, no compression algorithms, and no metadata parsing required — just read two integers and then read width x height x 3 bytes of pixel data. The format's historical significance in the computer graphics community provides another dimension — MTV files from early ray tracing experiments represent primary artifacts from the era when ray tracing transitioned from academic research to accessible software. MTV files are supported by ImageMagick and various legacy graphics tools.
Initial release: 1988

Frequently Asked Questions

Why convert MEF to MTV?

Mamiya medium format RAW files are enormous and require specialized software — converting to MTV makes them practical for everyday use.

What opens MTV files?

MTV files can be opened with ImageMagick and MTV ray tracer rendering tools.

Are my MEF files safe during conversion?

Uploaded MEF files are deleted immediately after conversion. MTV outputs are automatically removed within 24 hours.

How fast is MEF to MTV conversion?

Conversion typically completes within seconds. Processing happens on cloud servers, so your device stays responsive.

Is MEF to MTV conversion free on Convertio?

Standard conversions are available for free. Premium plans unlock higher capacity and priority processing for heavy use.

Can I convert MEF to MTV on my phone?

Yes — Convertio works in mobile browsers on both iOS and Android. Upload your MEF file and get MTV output instantly.