45-175 power OIS, not impressed at all.

Started Oct 11, 2011 | Discussions thread
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mark1000 Veteran Member • Posts: 5,717
45-175 power OIS, not impressed at all.

Hi guys,

After testing my 45-175's power OIS i have concluded its just not as good as the old mega OIS, i can actually get better images at the same shutter speeds with the OIS turned off as long as i follow the FL rule, all my tests have been at 175mm, 350mm EFL, did some more testing this morning to be sure, shot a round garden ornament on the fence, about 5 inches across @ about 20ft, let me just say that i don't normally pixel peep, but did for these tests and checked all the images @ 100%.

I shot 4 images @ 1/320, 1/400, 1/500 and 1/640, with OIS and without, the 1/320 showed clear double edges with OIS on, but none at all without OIS, all the other shots above 1/320 didn't show any double edges, but all of the OIS shots were softer than the images taken without OIS, i also got my wife to check the images for sharpness without her knowing what the test was for, she agreed with me except for the two 1/500 shots, she felt that they were to close to call.

After that i did the same test with my panny TZ10 P&S, @ 300mm EFL, the power OIS was fantastic on that camera, i shot over and over @ 1/100 and beside the extra noise you get with small sensor cameras they were all in focus and sharp, i did a couple of shots @ 1/100 with the G3 and 45-175 @ 350mm EFL with power OIS ON and they were horrible, unusable.

So what to do, i have the clicking OIS on video, and IMO a OIS system which is worse than the old one its replacing for still images, maybe i have a lemon, but on the other hand if i ask for a replacement i may get one thats optically inferior.

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Mark.

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