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| p.1 #1 · p.1 #1 · OM-D : IS issues when using the Samyang 7.5mm fisheye |
First, I hope this is the right forum for this post.
I recently got an Oly OM-D to complement my Nikon FX gear when I want to travel light. I started with the Zuiko 45mm 1.8 and the Rokinon (i.e., Samyang) 7.5mm fisheye (the Zuiko 17mm 1.8 is next as soon as the black version is out!).
I noticed the following strange behavior. I turned on the option that enables IS as soon as I half-press the shutter button. When I use the 45mm I can see the image through the EVF getting very stable as soon as a half press the shutter button and I can take sharp shots down to 1/8sec - 1/6sec (very impressive, BTW; this is a bit better than I can do with the latest Nikon VR at equivalent focal lengths).
However, when I use the fisheye, the image actually gets more wobbly, instead of stabilizing, as soon as I half-press the shutter button and most shots come out blurry even at 1/15sec - 1/20sec (in fact, at those shutter speeds I can get sharp results by turning IS off). Now, I know that IS is not supposed to be as effective at wider focal lengths, but it should not get worse than the longer focal lengths!!!
So, is there some incompatibility between the OM-D's IS and third-party lenses? I would have thought that, given that the IS is on the body, it should work with any lens.
Thank you in advance for any advice!