I was recently laid up with something like a flu crossed with a head cold, and with not much else to do but blow my nose I thought I’d check out Olympus Viewer 3 (OV3). I have read a number of posts on mu-43 describing the output from OV3 as better than Lightroom, and seeing as I use Lightroom to process all my images, I was curious to test it for myself. I quickly discovered that OV3 is slow. It takes several seconds to apply a change, and because there isn’t a “working” indicator or progress bar, I sometimes couldn’t tell when it was finished working. I learned that the only way I could tell when an adjustment had been applied was by staring at the histogram, and when it changed I knew OV3 was finally done. More importantly, though, I discovered that OV3 has a tendency to crash. A lot. Unfortunately, any settings I had changed between crashes were usually lost in the crash. In some cases, the appearance of the image reverted after the crash to a previous intermediate stage not matched by the current settings. For example, I played around with the art filters before setting the image back to “no filter,” and after a crash OV3 showed the image as if the filter was applied even though “no filter” was still selected. When that happened, I basically had to start again from scratch, as I couldn’t be sure if a setting was actually applied. The crashing was so bad that I was only able to successfully process one RAW file before I gave up and cleaned every trace of OV3 off my computer. FWIW, I’m using a 2012 retina MacBook Pro with 16GB of RAM (hilariously, Olympus advises that if the highest quality image display setting is enabled I should be using a computer with “1GB or more RAM”) and the images were from an E-PL5. I know that others are able to use OV3 on a regular basis without all the crashing that I experienced, but even if it was stable it didn't look like OV3 offered any benefits. The one image I processed was shot at ISO 1600, and when I compared the OV3 version with what I could achieve in Lightroom by applying some sharpening and noise reduction, I preferred the Lightroom version (both versions looked good, and some people might have preferred the OV3 version). My very limited testing demonstrated to me that Lightroom can produce results on par with OV3, and without the slowness, crashes and clunky UI. So I’ll stick with Lightroom.