Why won’t Photoshop CS4 open Canon T3i CR2 files in Adobe Camera Raw?

Asked 9/6/2013

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2 answers

I’m new to shooting RAW and I’m trying to open Canon Rebel T3i .CR2 files in Photoshop CS4 (version 11.0.2) using Open As > Camera Raw. Photoshop lists the file type, but the files won’t open. I’d like a simple explanation and would prefer to keep editing in Adobe Camera Raw instead of Canon Digital Photo Professional if possible. Is CS4 compatible with T3i RAW files, and if not, what are my options?

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Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

12y ago

2 Answers

You can convert your cr2 files to DNG files. DNG files are openable with anything.

You can convert them using this tool

http://www.adobe.com/support/downloads/product.jsp?product=106&platform=Windows

Originally by user16006. Source · Licensed CC BY-SA 4.0

user16006

12y ago

AI Answer

Generated from our catalog & community — verify before relying on it.

Photoshop CS4 is the problem, not your files.

Your Canon Rebel T3i requires a newer version of Adobe Camera Raw than CS4 can use. The T3i is supported starting with ACR 6.4.1, and that version requires Photoshop CS5 or newer. So even though CS4 shows the CR2 extension, it can’t actually decode RAW files from that camera.

Your practical options are:

Convert the CR2 files to DNG using Adobe’s free DNG Converter, then open the DNG files in CS4.
Upgrade Photoshop to a newer version that supports the required ACR version.
Use another RAW converter first, such as Canon Digital Photo Professional or RawTherapee, then continue editing the exported file in Photoshop.

Simplest “for dummies” version: your camera is newer than your copy of Photoshop, so CS4 doesn’t understand that camera’s RAW files directly.

Why won’t Photoshop CS4 open Canon T3i CR2 files in Adobe Camera Raw?

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