Product Description

Nothing changes the way you see the world like High Definition², and no company does High Definition² like Opteka. In the professional setting, Opteka's glass optics define High Definition. Change the way you view the world. Enjoy outstanding detail, enjoy enhanced clarity, enjoy Opteka. Since it fits right over your camera's existing lens system, a telephoto converter affects the zoom range of your camera's lens. A 2.2x converter will double your camera's maximum focal length, bringing things twice as close.

Product Details

• Amazon Sales Rank: #16169 in Camera & Photo
• Size: Small
• Brand: Opteka
• Model: OP-HD2T-A620
• Dimensions: 2.00" h x 1.00" w x 1.00" l, 1.00 pounds

Features

• A 2.2x converter will double your camera's maximum focal length, bringing things twice as close.
• High Definition² - 2 times the resolution of standard high definition lenses
• Exclusive SureGrip composite material is used around the barrel. This material is exceptionally non-slip, yet soft and easy on your hands
• Digital Multi-Coated to reduce the appearance of lens flare and ghosting caused by reflections
• Adapter included, lifetime warranty

Customer Reviews

marginal image quality, but inexpensive
Opteka lenses are a low cost alternative to the Canon brand conversion lenses.
However, the image quality is not very good, and will only be acceptable on smaller size images.
The lens is a big chunk of glass and blocks nearly all of the view through the viewfinder, so you will need to use the LCD for framing purposes.
You will need to set your lens at the telephoto maximum, making it a fixed focal length lens (no zooming).
It comes with an aluminum adaptor, which normally costs about $15 on its own.

It's probably worth $30 if you are not too particular about image quality and are not making fine art shots.

OK, but Sub-Par Quality
If you need that extra zoom, for the price, this lens isn't too bad. But, if like me you care about image quality and clarity, then be warned that I saw a significant downgrade in quality at all focal lengths.

Overall, if the price weren't so low, I'd probably have said this was not worth a purchase, but since it's reasonable, it might be worth a purchase.

Has vignetting problem at wider views
I read the reviews before purchasing this lens so I was aware of the vignetting issue. In short, for the first about 2/3 of your zoom, your view is as if you are looking through a cardboard tube. You only have a picture in a circular region in the center of the picture. I found this to be acceptable though since I wanted this to bring me a lot closer to my subject. Most of the time when I am using this lens, I have it at the full zoom position where vignetting is not a problem.