CS2 looks to be 8 or maybe more years old so ask Canon which versions they support. You may have to settle for some other editor or convert it to a format CS2 can work with.
Bob
Hi. I'm currently using a Canon Rebel T2i and I'm trying to open my CR2 files in Photoshop CS2. I've downloaded Camera Raw Update 3.7 from the Adobe website and followed the install instructions to a T. However, I still cannot open the CR2 files in CS2. Can anyone help me???
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