Vivitar Series 1 90-180mm f/4.5 Flat Field is a manual focus zoom lens for SLR cameras.
The optical scheme comprises 18 elements in 12 groups. Due to the fact that lens has 6-bladed aperture, the subjects located outside the depth of field may be shown which the nuts-effect in the bokeh.
This lens has a size of 158 mm. The lens of this size it is difficult to carry. This lens weighs 1090 grams, given the weight of the camera, it may deliver long wearing problems. Mounting the filter has a common size.
May be available from: Amazon.com, Amazon.co.uk, eBay.com, eBay.co.uk.
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