Tag : dg nikon, sigma apo, cameras, teleconverter 1, digital slr, 4x ex

Company : Sigma List Price : $219.00 Amazon Price : $179.00 Used Price : Average customer review :

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Features

• Teleconverter lens for Nikon SLR cameras
• Increases the focal length by the power of 1.4
• Multi-layer lens coating and lens design reduces flare and ghosting
• Includes lens case

Product Description

The 1.4 EX is placed between the lens and the camera, and it allows the photographer to use the 70-200mm f/2.8 lens as a 98-280m f/4 lens, and the 300mm f/2.8 lens as a 420mm f/4 lens; the high optical performance is maintained and the AF speed is not affected.

Customer reviews

Teleconverter
Nice and easy to use, thin and affordable converter just take you're standard lens and add 1,4 to the f value and you got the number i.e 2,8 X 1,4 = 3,92 or f/4 so it is good for everyday use

Excellent add on
For the past year I have used mine on a regular basis with my Sigma 150 macro lens. This creates a 210 F4 macro that is amazing. It is not possible to tell, by looking at the pictures, which were taken with or without this TC. Buying this gives you a second lens of equal quality for a little bit of money.

Works as designed, great little gadget
I have both a Sigma 50-500 (aka Bigma) and a Sigma 100-300 f/4. Prior to getting the latter, I was able to use the Bigma with my Kenko Pro 300 1.4X TC DG on my Nikon D70. However, the Kenko refuses to work with the 100-300 so I have to buy this Sigma TC which works extremely well with the 100-300. However, unlike the Kenko, I cannot retract the Bigma all the way with the Sigma TC which is why I only give the Sigma TC 4 stars.

The 100-300 f/4 focuses as fast with or without the TC and I don't seem to lose image quality with the Sigma TC either. The EXIF info also correctly shows 420 mm was used. [...].

Sigma 1.4x Teleconverter
Mating perfectly with the excellent Sigma 50-500mm lens, this teleconverter increases focal length. The downside is that it decreases aperture by 1+ stop, and you lose the autofocus capabilities of the lens.