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12-22-2013, 11:07 AM   #1
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Join Date: Jan 2012
Location: Portland, Oregon
Posts: 26
Sigma 18-250 over exposure

Brand new Sigma 18-250 with K5 IIs body. Pictures are over exposed. Need to step exposure compensation down to -1 to avoid over exposure. Why is that? All my other Pentax lenses don't need to set exposure compensation.

12-23-2013, 03:51 AM   #2
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Join Date: Mar 2011
Posts: 5
I have got Sigma 18-200 mk II. It's great on whide end, and over exposes at 200mm, both with old K-5 and new K-5IIs. Looks like Sigma can not hack pentax protocol between camera and lens. Just remember to tune exp.compensation. Nice lens overall.
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compensation, exposure, k-mount, pentax lens, sigma, slr lens
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