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<blockquote data-quote="rocketman122" data-source="post: 271777" data-attributes="member: 14443">yea, WB was off a bit haha. Good to ask others. hope you find a solution. something that happened as a one time thing? maybe the lens wasnt completely locked on the mount? maybe dirty contacts on the lens/mount? this is just me, but every 2-3 weddings I use lint free qtips style swabs with some drops of caig deoxit gold. I also use it around the mount itself as it helps lessen the abrasion that happens over time. helps to make the lenses slip on and off much easier. I switch lenses so many times in a wedding. I also use it for the camera flash shoes and speedlight feet as well. I also use it on the ends of the batteries as well as in the battery chamber. just a little preventive treatment. my friend was having mount issues and he used some of my caig liquid and man was there a ton of black build up. I dont use much. dont rub it on much, but like sensor cleaning, IMO, it must be done. @BDH I did have an issue years back when I first started with sigma lenses. the guy had to order a new chip/pcb board with contact attached. not sure how common it is, but I think youre right in that it seems like some error between the camera/lens.</blockquote>

[QUOTE="rocketman122, post: 271777, member: 14443"] yea, WB was off a bit haha. Good to ask others. hope you find a solution. something that happened as a one time thing? maybe the lens wasnt completely locked on the mount? maybe dirty contacts on the lens/mount? this is just me, but every 2-3 weddings I use lint free qtips style swabs with some drops of caig deoxit gold. I also use it around the mount itself as it helps lessen the abrasion that happens over time. helps to make the lenses slip on and off much easier. I switch lenses so many times in a wedding. I also use it for the camera flash shoes and speedlight feet as well. I also use it on the ends of the batteries as well as in the battery chamber. just a little preventive treatment. my friend was having mount issues and he used some of my caig liquid and man was there a ton of black build up. I dont use much. dont rub it on much, but like sensor cleaning, IMO, it must be done. @BDH I did have an issue years back when I first started with sigma lenses. the guy had to order a new chip/pcb board with contact attached. not sure how common it is, but I think youre right in that it seems like some error between the camera/lens. [/QUOTE]

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