On the lists, the lenses marked "AF" will retain auto focus operation when used with a Tele Converter. The lenses marked "MF can only be used for manual focus. Some lenses will be operated AF even mentioned "MF", however, be aware that these lenses cannot focus precisely by auto focusing.
Therefore, please use such lenses in MF mode when teleconverter is attached. In cases where contrast or brightness level of the shooting object is low, it may not focus properly.
Technical Support: 1. Title: ExactFilms Studios. Description: Right before the sunset, I noticed this bird chilling on this tree looking down at the rising moon. Title: Robert K Dwyer. Description: The Moon, Inspiration for life. Title: Kim Ringeisen. Description: Tuscan Sun meets Tuscan Moon. As I was shooting in Tuscany this pat August, the moon was the largest I have ever seen it, setting up in a rolling tuscan hillside, I was able to capture this detailed and wonderful image with my Bigma!
Title: Old Lovers. Camera: Pentax Lens: 2. Description: Old Lovers. The focal length changes the angle of view in an image. The longer the focal length, the smaller the angle of view and the greater the magnification. Learn about the state of the art technology put into Sigma lenses to ensure high quality images. Get more reach with what you have.
Check the compatibility of your lens with the teleconverter chart. The MTF is just one criterion used to evaluate lens performance. Technical Support: 1. Category: Teleconverter. Magnification of focal length of 2. Buy Now. Overview Equipped with 2 SLD Special Low Dispersion glass element for maximum image quality, the new Sigma Global Vision teleconverters utilize a splash and dust proof construction for long lasting durability.
Submit Review. Customer Reviews. I am using this 2x convertor on old legacy Olympus OM Zuiko telephoto lenses. What I am seeing amazes me. Image quality is fantastic. Using Nikon bodies from D3s, D3x and D Will test on friends D soon.
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