I purchased this Opteka 2.2x telephoto lens for $30 plus $8 freight from 47th Street Photo, for use with my Canon Powershot A570IS.The Opteka is very nicely finished. It comes with two lens caps, a nice bag, and (in this case, it may vary by camera model) a 52mm extension tube.It's performance is outstanding.Shooting with the Telephoto from 35mm (it vigenets at this focal length only)to 140 x 2.2 it was without distortions and has great depth of field.Using the additional 4x digital zoom I it was very sharp through 3x.4x was slightly soft which may have been more the product of the wide area of auto focus.At the higher magnifications it does need a monopod, tripod or a stout tree.The lens will block part of the optical viewfinder, but the top vertical line, two side lines are still visable and you can use the LCD Monitor for a full view.Surprisingly it does not "stack" like my old 200mm did.
This Opteka lens is four or five times better than my old Vivitar 2x Telextender.Having dragged two Nikkor FTN bodies and six prime lens over many western National Parks this is an great lens, it's an outstanding value.
As a additional bonus, the extension tube if left on, does not vignette at 35mm and takes my Nikon 52mm filters and poloriod filter.How often do you need more than 140mm x2 digital or x3 digital?When you do, this Opteka 2.2 is an excellent inexpensive way to go.
See more reviews about: Opteka 2.2x High Definition Telephoto Lens for Canon PowerShot A570 A590 IS Digital Camera
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