I have a Nikon D3200 and I use portrait photography with my 55-200mm Non-VR DX Zoom lens. Sometime the pictures come out so sharp and crisp, others look so blurry. Im using aperture priority and focus between the eyes. I never use a tripod cause with portraits its restricting. I'm thinking because its a non-VR that its doing this. Please help explaining this to me and some tips to make my images sharper with this lens
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