




See Options
1 Year
$34.99
2 Year
$59.99
3 Year
$79.99
Need help? Ask our experts.
Review Summary
Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500
Browse our FAQ
Black Satin Exterior
Black Matte Interior
0.71x
1.07x
f/0.90 (with f/1.2 Lens Attached)
< 1%
5/4
4.2 mm
Canon RF
DX, APS-C
Contax Yashica
Any full-frame lens with the appropriate mount can be used. DX lenses can be mounted but will result in severe vignetting in most cases. Canon EF-S Z lenses are not supported.
Long-throw clickless aperture ring on Nikon F/G version; AF/IS support and in-camera aperture selection with Canon EF to Sony E version.
Robust Removable Type with Arca Swiss Compatibility
1.06 x 2.99 x 2.83" (27 x 76 x 72mm) for Canon EF version
6.80 oz (193g)
4897050182963
Models | SKU: MBSPCYEFRBM1 MFR: MB_SPCY-EFR-BM1 $489.00 Special Order Generally ships in 7-14 days, subject to availability | SKU: MBSPPLEFRBT2 MFR: MB_SPPL-EFR-BT2 $719.00 On Backorder Order now, your card will not be charged until it is ready to ship. | $429.00 In Stock |
---|---|---|---|
Features | SpeedBooster / Baveyes | SpeedBooster / Baveyes | Full AF Adapter |
Style | - | Standard | With ND Filter |
Camera Fitting (Male) | Canon RF | Canon RF | Canon RF |
Lens Fitting (Female) | Contax/Yashica | PL Mount | Canon EOS |
With the high-quality Contax Yashica CY Lens to Canon RF Mount CINE Speed Booster Ultra 0.71x Adapter, you can unlock the full potential of your camera. This innovative adapter is designed to be compatible with both Contax/Yashica lenses and Canon RF mount cameras, making it a versatile addition to your photography equipment.
The adapter boasts a compact design, featuring an advanced 5-element/4-group optical design that incorporates ultra-high index tanatalum-based optical glass. This ensures extraordinary optical performance, with improved corner sharpness, less distortion, and reduced vignetting.
The Speed Booster Ultra has a magnification of 0.71x, effectively reducing the crop factor of mirrorless cameras with DX-sized sensors. This makes it ideal for use 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.
The adapter is well corrected for use with virtually all full-frame SLR lenses, regardless of exit pupil distance. This means it performs exceptionally well with high-speed fixed focal length lenses, transforming a 50mm f/1.2 into a 35.5mm f/0.9 lens with excellent contrast and resolution from the center to the edges of the image.
The Contax Yashica CY Lens to Canon RF Mount CINE Speed Booster Ultra 0.71x Adapter is made of durable, precision-machined brass with chromium plating on both the camera-body and the lens sides. This ensures smooth mounting, a great appearance, and long-lasting durability. The lens side of the adapter features a strong leaf-spring structure, strengthening the adapter-lens connection and ensuring tightness of the lens to reduce wear and prevent focus errors and optical alignment issues.
The adapter also features true electronic integration of the aperture diaphragm, allowing the camera to automatically choose the aperture in P or S exposure modes, or for you to dial in yourself on the camera body in A or M modes.
Experience the difference with the Contax Yashica CY Lens to Canon RF Mount CINE Speed Booster Ultra 0.71x Adapter, a product that combines design, workmanship, and technology to deliver the best possible optical quality.