 |
Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses by SIGMA
Digital product summary informationManufacturer: SIGMA Model: B000CDA7Y4 Product features: - Teleconverter lens for Nikon SLR cameras
- Increases the focal length by the power of 2
- Multi-layer lens coating and lens design reduces flare and ghosting
- Includes lens case
Accessories:
Digital camera reviews of Sigma APO Teleconverter 2x EX DG for Nikon Mount LensesDigital camera Review: Failed while using the new Sigma 150-500mm for Nikon Summary: 1 Stars
Just for verification: This is for the "Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses."
I was really excited. I expected the impossible, I expected it to work. If you don't expect anything you won't be disappointed. Whoops!
Out of the box the unit connected snugly with the recommended Sigma 150-500mm f/5-6.3 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras (this 150-500mm works fantastic alone.) I then attempted to start shoot a housing development 1.5 miles across the valley and visibility was 10. I was at the top of a small mountain and so was this subject across the valley.
I start snapping. I heard the auto focus motor of the parent lens churning in an aggravated manor. The motor then stopped and the picture was automatically taken. In the site and picture results were no houses; it was a white blur. I then tried with other items all over the spectrum of cameras listed range. The pictures ranged from really pathetic to unidentifiable. The camera thought the subjects were in focus when they were not even close.
At first I thought there was a problem with the Sigma. Next I tried a Nikon 300mm lens with the converter and I had the same problem. I then tried the Sigma 150-500mm alone and the shots were amazing. They were money shots and on the fly.
I then put the Sigma APO Teleconverter back on with the Sigma 150-500mm. I switched to manual and twisted the pictures into focus. They were only ok at 1.5 miles from the subject. I had similar results from subjects at 10 feet. I am not interested at ok and I wanted auto focus.
Sigma 150-500mm f/5-6.3 AF APO DG OS HSM Telephoto Zoom Lens for Nikon Digital SLR Cameras
Summary of Sigma APO Teleconverter 2x EX DG for Nikon Mount Lenses*THE DG MODEL IS HERE* The new dedicated 2x APO Teleconverter features a 6 element/5 group optical design, and it is specifically designed for use with longer telephoto and telezoom lenses.The high performance optical characteristics of these teleconverters maintain the optical performance of the compatible lenses with which they can be used.Using 10-pin electrical interfaces, there is no loss of autofocusing speed when these teleconverters are used with compatible H.S.M. type lenses for Canon, Sigma, and now current Nikon AF cameras (except N60/F60 models). They are ideally suited for use with the 70-200mm F2.8 APO EX HSM zoom lens; providing normal exposure and autofocus function, while maintaining its high optical performance. The Sigma APO Teleconverter 2x EX DG for Nikon Digital SLR Cameras is a dedicated APO teleconverter that can be mounted between select lenses and the camera body to increase the focal length by the power of 2. The multi-layer coating reduces flare and ghosting, which is a common problem with digital cameras. The lens also offers maximum magnification without any variation in the minimum focusing distance. Compact and lightweight, this teleconverter can convert your lenses into longer focal-length lenses, so you don't have to do a lot of unnecessary footwork. A case for the lens is included.
|
 |
|
|
|