New optical design: advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting. Like the revolutionary original Metabones Speed Booster announced in January 2013, the Speed Booster ULTRA has a magnification of 0.71x, and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-mount cameras, from 1.5x to 1.07x. However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology, and as a result is well corrected for use with virtually all fullframe SLR lenses regardless of exit pupil distance. Thus, the Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon and Nikon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively. Similarly, high-speed fixed focal length lenses such as a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the center all the way to the edges of the image.
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Our Return Policy: It's really simple.
If you are not happy with something you bought, we'll take it back as long as it is within 14 days of when you got it and it is not a special ordered item.
If you opened it or damaged the packaging, we'll still take it back but we'll charge a 15% re-stocking fee. If it's brand new and unopened, we'll give you a full refund. The only times we don't accept a return is if it is used or damaged by you or if the product is returned incomplete.
If the fault is on us (mixed up, faulty on arrival), we'll of course pay for return shipping.
How to return?
Simple, easy, no rocket science. Just good common sense.
The Full Terms:
You do not have to give a reason to return your order for a full if all of the are true:
Full Refund (No Re-stocking Fee) Requirements:
All of the following conditions must be met for us to issue you a full refund:
15% Re-stocking Fee:
We will accept with a 15% re-stocking fee deducted from the refund, if
Items that cannot be returned:
We also reserve the not to accept a :
Other Notes:
Free delivery
Free delivery for most orders
14 Days Return
Return within 14 days for a refund, no questions asked.