奥林巴斯宣布推出一款2X增距镜MC-20，它与该公司的40-150 F2.8和300mm F4 IS Pro镜头以及目前正在开发的150-400mm F4.5 TC1.25x IS Pro兼容。特别是在300mm F4上，MC-20的最大放大倍率可达0.96倍。

增距镜是密封的，有9个元件组成，其中一个是“HR”，而“ZERO”涂层可减少重影和闪光。奥林巴斯表示，使用MC-20时，AF性能几乎没有“损失”。

MC-20现在售价429美元。

新闻原稿如下：

宾夕法尼亚州中心谷，奥林巴斯很高兴地宣布推出M.Zuiko Digital 2x Teleconverter MC-20。该增距镜可将主镜头的焦距加倍，并具有防尘，防溅和防冻（-10°C）专业防风雨结构，具有出色的光学性能，即使在最恶劣的环境条件下也是如此。通过将主镜头的最大拍摄倍率加倍，该增距镜进一步扩展了超远摄微距拍摄中的摄影领域。本产品兼容M.Zuiko Digital ED 40-150mm F2.8 PRO和M.Zuiko Digital ED 300mm F4.0 IS PRO，以及M.Zuiko Digital ED 150-400mm F4.5 TC1.25x IS PRO，目前正在开发中。

超远摄和超远摄微距拍摄

就像M.Zuiko Digital 1.4x Teleconverter MC-14一样，M.Zuiko Digital 2x Teleconverter MC-20保持了主镜头的出色成像性能，同时使焦距加倍，从而可以拍摄出通常难以接近的拍摄对象，比如小型鸟类和动物。当连接到M.Zuiko Digital ED 300mm F4.0 IS PRO时，可以进行相当于1200mm（相当于35mm）的手持式超远摄。

当连接到M.Zuiko Digital ED 300mm F4.0 IS PRO时，MC-20允许用户在最大拍摄倍率0.48x下以0.96x（相当于35mm）拍摄接近实际尺寸的画面。通过这样的表现，摄影师可以拍摄远处的特写而不会干扰对人类敏感的对象，例如昆虫。

出色的光学性能

具有HR镜头的9个元件，4组镜头结构有助于抑制各种类型的像差，包括色差，同时保持主镜头的优异光学性能使焦距加倍。由于ZERO涂层，该设计还有助于防止重影和闪光，从而获得出色的图像性能。

即使安装了Olympus增距镜，主镜头也能提供卓越的性能。实际上，自动对焦速度没有任何损失，因此可以使用AF性能捕捉瞬间拍摄机会。防尘，防溅和专业防风雨结构，加上强大的5轴图像稳定和快速自动对焦确保用户即使在最恶劣的环境中也可以拍摄。

兼容镜头：

Zuiko Digital ED 40-150mm F2.8 PRO

Zuiko Digital ED 300mm F4.0 IS PRO

Zuiko Digital ED 150-400mm F4.5 TC1.25x IS PRO（正在开发中 - 计划于2020年推出）

定价和供货

奥林巴斯M.Zuiko Digital 2x增距镜MC-20配有机身盖BC-3，镜头盖LR-2和镜头套LSC-0603，现已上市，零售价为429.99美元和559.99加元。

英文原文如下：Olympus announces 2X teleconverter for Pro lenses

Olympus has announced a 2X teleconverter, the MC-20, which is compatible with the company's 40-150 F2.8 and 300mm F4 IS Pro lenses, along with the 150-400mm F4.5 TC1.25x IS Pro currently under development. On the 300mm F4 in particular, the MC-20 brings the maximum magnification up to 0.96x.

The teleconverter is weather-sealed and has nine elements, one of which is 'HR' to suppress aberrations. The 'ZERO' coating reduces ghosting and flare. Olympus says that there's 'virtually no loss' in AF performance when using the MC-20.

The MC-20 is now available for $429.

Press Release：

CENTER VALLEY, Pa. Olympus is pleased to announce the M.Zuiko Digital 2x Teleconverter MC-20. This teleconverter doubles the focal length of the master lens, and features dustproof, splashproof and freezeproof (-10°C) professional weatherproof construction for outstanding optical performance ideal for even the most severe environmental conditions. By doubling the maximum shooting magnification of the master lens, this teleconverter further expands the field of photography in super telephoto macro shooting. This product is compatible with the M.Zuiko Digital ED 40-150mm F2.8 PRO and M.Zuiko Digital ED 300mm F4.0 IS PRO, as well as the M.Zuiko Digital ED 150-400mm F4.5 TC1.25x IS PRO, which is currently under development.

Super Telephoto and Super Telephoto Macro Shooting

Just like the M.Zuiko Digital 1.4x Teleconverter MC-14, the M.Zuiko Digital 2x Teleconverter MC-20 maintains the excellent imaging performance of the master lens while doubling the focal length, making it possible to capture intense shots of subjects that are usually difficult to approach, including small birds and animals. When attached to the M.Zuiko Digital ED 300mm F4.0 IS PRO, handheld super telephoto shooting at 1200mm equivalent (35mm equivalent) is possible.

When attached to the M.Zuiko Digital ED 300mm F4.0 IS PRO, the MC-20 allows the user to shoot near actual size at 0.96x (35mm equivalent) from the maximum shooting magnification of 0.48x. With performance like this, the photographer can capture close-up photos from far away without disturbing subjects that are sensitive to people, such as insects. Utilizing Focus Stacking results in photos that are in focus across the entire image, even on super telephoto lenses, which tend to have a shallow depth of field.

Outstanding Optical Performance

A 9-element, 4-group lens construction with an HR lens helps suppress various types of aberrations including chromatic aberration while maintaining the excellent optical performance of the master lens to double the focal length. The design also helps prevent ghosts and flares for superb image performance, thanks to ZERO coating.

The master lens is designed to deliver excellent performance and dependable reliability, even when an Olympus teleconverter is attached. Virtually no loss in autofocus speed makes it possible to capture split-second photo opportunities using FAST AF performance. The dustproof, splashproof, and freezeproof professional weatherproof construction, coupled with powerful 5-axis image stabilization and FAST AF ensures that the user captures their shot even in the most severe environments.

Compatible Lenses:

Zuiko Digital ED 40-150mm F2.8 PRO

Zuiko Digital ED 300mm F4.0 IS PRO

Zuiko Digital ED 150-400mm F4.5 TC1.25x IS PRO (under development-planned for launch in 2020)

Pricing and Availability

The Olympus M.Zuiko Digital 2x Teleconverter MC-20 ships with the body cap BC-3, lens cap LR-2 and lens case LSC-0603 and is available now with suggested retail prices of $429.99 USD and $559.99 CAD.