What happened to Minolta cameras?

Konica Minolta left the camera business in 2006 and sold the technology to Sony, which is why Sony A-mount cameras take Minolta lenses and why ARW descends from MRW.

Can modern software open MRW?

Yes — Lightroom, darktable and RawTherapee all support it well.

My raw file is over the size limit — what can I do?

Convert to DNG with Adobe's free DNG Converter, which typically cuts 15–20% while keeping the file fully editable. That's usually enough to bring it under 25 MB.

Host an MRW file and share it as a link

Put a Minolta raw photo online at its own address — from the cameras whose lineage became Sony Alpha.

You can host:

Drop your MRW file here

Any other file works too — up to 25.0 MB, or 100.0 MB for a whole site

Free to use. Your MRW file is live at your-name.99helpers.site in about ten seconds.

What is a .mrw file?

MRW is Minolta's raw format, used on the Dimage and Maxxum/Dynax DSLRs. When Konica Minolta left the camera business in 2006, Sony bought the technology — which is why Sony's A-mount cameras accept Minolta lenses and why ARW is MRW's direct descendant.

What people use MRW files for

Archives from Minolta and Konica Minolta DSLRs
Photo libraries from the early 2000s
Reprocessing with modern software

What opens a MRW file

Lightroom and Camera Raw
darktable and RawTherapee
No browser displays MRW

How to host a MRW file

1
Drop your MRW file in
Drag it onto the box at the top of this page, or click to choose it. Files up to 25 MB are supported, and nothing is uploaded until you publish.
2
Pick an address
Type a name and we'll tell you straight away whether it's free. That becomes the link: minolta-raw.99helpers.site
3
Publish and share
Create a free account — that step exists so the file is yours to update, replace or delete — and the link is live within seconds.

The same three steps work for any file — see how file hosting works on 99helpers.com.

What happens when someone opens the link

The file downloads and opens in a raw editor. Support remains good in major converters.

Why host a MRW file instead of emailing it?

Minolta archives are still actively reprocessed by photographers who kept their lenses and moved to Sony bodies.

Worth knowing before you publish

Host a JPEG alongside so people can see the shot without a raw editor.
Converting to DNG with Adobe's free converter makes MRW openable in more software, and usually smaller.
Raw files carry GPS coordinates and camera serial numbers in their metadata.

MRW hosting questions

What happened to Minolta cameras?: Konica Minolta left the camera business in 2006 and sold the technology to Sony, which is why Sony A-mount cameras take Minolta lenses and why ARW descends from MRW.
Can modern software open MRW?: Yes — Lightroom, darktable and RawTherapee all support it well.
My raw file is over the size limit — what can I do?: Convert to DNG with Adobe's free DNG Converter, which typically cuts 15–20% while keeping the file fully editable. That's usually enough to bring it under 25 MB.

Put your MRW file online now

It takes about ten seconds, and you only make an account once the file is ready to go live.

Back to the top

Hosting guides for related formats

Host a Sony ARW raw file Host a camera raw file Host a DNG raw photo Host a Sony SR2 raw file Host a JPG photo

MRW is one of over 211 formats you can host — see free file hosting for any file type for the full list, or read the hosting guides for other file types.