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Kenko 420-800mm Super Telephoto Zoom Lens with 2x Teleconverter for Nikon D40, D40x, D60, D5000, D80, D200, D300, D3, D700 Digital SLR Cameras

4.0 out of 5 stars 4 customer reviews

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  • KIT INCLUDES 4 PRODUCTS -- ALL BRAND NEW Items with all Manufacturer-supplied Accessories + Full Kenko USA Warranty:
  • Kenko 420-800mm Super Telephoto Zoom Lens PLUS
  • 2x Teleconverter
  • Precision Design T-mount Adapter
  • Rear Lens Cap

Technical Details


Product Information

ASIN B000MX5LEK
Customer Reviews
4.0 out of 5 stars 4 customer reviews

4.0 out of 5 stars
Best Sellers Rank #3,741 in Camera & Photo > Lenses > Camera Lenses > Digital Camera Lenses
Date first available at Amazon.com January 25, 2007

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Top Customer Reviews

By Daniel Lee on June 3, 2007
I own this in the Canon EOS mount.. they are in fact all the same, just ships with a different T-mount adapter, and the 420-1600 just ships with a 2x teleconverter.

This is a very light weight lens, especially for its focal length, it has no aperture blades, it's completely empty on the inside, its like an old style hand telescope. When sources of strong constrast/light are coming toward the camera, expect heavy chromatic aberration, free of chromatic aberration in other situations.

However, I've found a particularly excellent use for this lens, which is taking great photos of the moon on a tripod with a shutter release cable on my Canon 30D.

Although be warned, the lens is very physically long, although light, it makes focussing extremely difficult, especially on a tripod, as there is no tripod collar, you attached the camera to the tripod, then when you zoom the lens all the way (linear pull zoom) the lens is over 30cm long (12 inches!), although light because its empty, its supported on the tripod from the camera base, so soon as you touch the lens or camera, or the focussing ring, the image in the view finder shakes like crazy while trying to focus, making it hard to focus on the most useful application with this lens... on a tripod.

You can only use this lens hand held in full day light, and if you're doing so you'll need a shutter speed of 1/500 sec to eliminate blur from your own movement (due to the massive focal length), 1/250 sec is the minimum for sharp shots I could personally get.

And shooting in daylight, whether hand held or tripod, you're going to want to use a 1A sky filter AND a polarising filter (or at least one of them) to increase colour and contrast, luckily this thing comes with a lens hood.
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Verified Purchase
I wasn't expecting too much from this product given the price, but I found that it has been serviceable so far. I've used it for some animal photography and hand-held it is usable in full sunlight. However when attempting to use if for lunar photography, I found that it was too difficult to focus accurately even with a sturdy tripod due to camera movement when focusing. Also chromatic aberration can be somewhat corrected, but negatively affects overall image quality at high focus lengths. Finally, when using the included doubling teleconverter, the minimum aperture drops to f/16 at full zoom.
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product received in good time and we liked it because it was requested by me to give away and use
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Simple and good quality item. It is like a high power telescope for your camera.
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