Tamron SP AF Teleconverter Lens2x Magnification - MPN: AF20PN700 See Product Details
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Items In Lens Accessories You Might Be Interested InProduct Details of Tamron SP AF Teleconverter LensDescription The SP AF PRO-series teleconverters, with the optical construction (4-group/5-element for 1.4X and 4-group/7-element for 2X), are designed to be used with lenses that are F/2.8 and of focal lengths of 90mm or greater. This would make the use of the SP teleconverters ideal for the Tamron SP90mm F/2.8 macro, 70-210mm F/2.8 and 300mm F/2.8. Relative illumination is significantly improved resulting in better overall contrast and resolution across the entire image field. In addition, chromatic aberration and astigmatism are better compensated for by virtue of the use of higher-grade glass materials and more sophisticated design techniques than used in universal-type teleconverters. When used with lenses with smaller maximum apertures (F/4 and F/5.6, for example), there will be little difference in image quality as compared with the standard Tamron teleconverters. When used with lenses wider than 90mm, the SP teleconverters can actually comprise image quality. Quick Glance Product Type: Lens Summary Product Title: Tamron SP AF Teleconverter Lens Manufacturer: Tamron Lowest Price: $254.00 Power Score: 5 | 1 Review General Product Type: Lens Product Compatibility: Nikon AF-I, AF-D & AF-S Lenses Dimensions Dimensions: 1.70" Length x 2.70" Diameter Diameter: 2.70" Depth: 1.70 in Weight: 6.50 oz More Info URL: Manufacturer Link Additional Specifications Lens Construction: 7 Elements in 4 Groups Advertisement  
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Does what it should do
Strengths: Lightweight, easily mounted.
Weakness: None so far
I bought this teleconverter to increase the zoom capability of my AF Zoom-NIKKOR 80-200mm f/2.8D ED to be able to capture photos of wildlife. I initially purchased Nikon 1.7x teleconverter, but although it was supposed to work with the aforementioned lens (according to the then available product info), unfortunately it was not the case. Anyhow, Tamron's teleconverter works fabulously and would...
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