HELP! e-620 + 50-200mm autofocus failure

Started Jan 22, 2012 | Discussions thread
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alaska_tim
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HELP! e-620 + 50-200mm autofocus failure
Jan 22, 2012

I was recently in Cost Rica (highly recommended) and my e-620+50-200 combo was driving me crazy with its poor autofocus. I would like kind advice on what I was doing wrong and how I can fix it in the future. The following sequence is typical of how my camera was performing the entre trip. I missed countless shots while the lens racked back and forth, blowing right past the intended subject, only to produce this:

I realize the lighting is challenging (back-lit, dark, low-contrast subject, low light, lots of foreground and background contrast), but is such sub-optimal performance to be expected?

I am also getting a communication error between the camera body and the lens. The aperature shows up as " -.- " if the zoom is extended and the camera is powered on. I must power down, return the lens to 50mm, then cycle the power on and off. Randomly, communication will be restored and I can start shooting again. This never happens with my other lenses. Do you think this is related?

Solutions? Ideas? Help? My thanks in advance.

 alaska_tim's gear list:alaska_tim's gear list
Olympus E-620 Nikon D7100 Olympus Zuiko Digital ED 50mm 1:2.0 Macro Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR Olympus Zuiko Digital ED 14-42mm 1:3.5-5.6 +6 more
Olympus E-620
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