Overexposure on 20mm F2.8

Started Jun 20, 2012 | Discussions thread
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dpham
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Overexposure on 20mm F2.8
Jun 20, 2012

Dear,

I pick up a used lens, Nikon 20mm F2.8D and shooting on D90 Aparture mode. At F2.8, the picture come out perfect on the exposure. However, when i start closeing down the Aparture (step up on F stop), the picture become over exposure and totaly "white" at F22. It it happens on both D90 and D800.

i can take a picture at Manual mode at F5.6 or F8 but will have to go down at least -1 to -1.7 on EV in order to have the correct exporsure.

I am just wonder is this a lens problem or this is how it is behavior, If this is a lens issue, can anyone recomment place to fixed this, i am living in Southern Cal.

Thanks

 dpham's gear list:dpham's gear list
Nikon D90 Nikon D800 Tamron AF 18-270mm F/3.5-6.3 Di II VC LD Aspherical (IF) MACRO Nikon AF-S DX Nikkor 18-105mm f/3.5-5.6G ED VR Nikon AF-S Nikkor 16-35mm f/4G ED VR +5 more
Nikon D800 Nikon D90 Panasonic Lumix DMC-F5
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