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LOBO RSA · 06-27-2015, 07:52 AM

Hi This lens is attachedto a Pentax MZ-7 and the motor zooms etc

I have a 20D and a K50 and the lens will not work It fits but the bodies will not recognise it?

**sergysergy** · 06-27-2015, 08:19 AM

I think it should work. Try cleaning the contacts.

**paulh** · 06-27-2015, 09:09 AM

Is the aperture ring set to the "A" position?

LOBO RSA · 06-28-2015, 11:05 PM

Hi Paulh, Thanks The A position works the lens So you learn

06-27-2015, 07:52 AM	#1
LOBO RSA New Member Join Date: Oct 2014 Location: Cape Town Posts: 13	Sigma 28-300mm Aspherical IF Hi This lens is attachedto a Pentax MZ-7 and the motor zooms etc I have a 20D and a K50 and the lens will not work It fits but the bodies will not recognise it?

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06-27-2015, 08:19 AM	#2
sergysergy Site Supporter Join Date: Jan 2011 Photos: Gallery Posts: 5,175	I think it should work. Try cleaning the contacts.

06-27-2015, 09:09 AM	#3
paulh Site Supporter Join Date: Sep 2010 Location: DFW Texas/Ventura County, CA Photos: Gallery \| Albums Posts: 33,319	Is the aperture ring set to the "A" position?

06-28-2015, 11:05 PM	#4
LOBO RSA New Member Join Date: Oct 2014 Location: Cape Town Posts: 13 Original Poster	Hi Paulh, Thanks The A position works the lens So you learn

Sigma 28-300mm Aspherical IF

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