Komura 3,5/300mm for Bronica | 镜头

Overview / Rarity / Cultural Background
这是一个老式 Komura 300mm f/5 望远镜头，随附 Uni Helical 调焦单元 II，由 Sankyo Koki 在 Komura 品牌下制造。

The Uni Helical system allowed photographers to use a single focusing mount with interchangeable Komura lenses, offering remarkable versatility long before modern modular lens systems became common.
Uni Helical 系统让摄影师能够使用单一对焦卡口搭配可更换的 Komura 镜头，在现代模块化镜头系统尚未普及之前，就展现出非凡的多功能性。

The 300mm f/5 was appreciated for its solid construction, sharp optical performance, and relatively compact design for a telephoto lens of its era.
这支 300mm f/5 以坚固的做工、锐利的光学性能以及在当时同类远摄镜头中相对紧凑的设计而受到赞赏。

Well-preserved examples complete with the original Uni Helical Focusing Unit II are becoming increasingly difficult to find, particularly outside Japan.
配有原装 Uni Helical 调焦单元 II 的保存完好样品日益稀少，尤其是在日本以外地区。

Compared with telephoto lenses from manufacturers such as Carl Zeiss, Komura lenses are admired for their innovative interchangeable-mount design and the craftsmanship of Japan's independent optical industry.
与如 Carl Zeiss 等厂商的远摄镜头相比，Komura 镜头因其创新的可互换卡口设计以及日本独立光学工业的精工技艺而备受赞赏。

This lens represents the ingenuity of Japanese lens makers during the 1960s and 1970s, when innovative optical engineering helped establish Japan as a global leader in photographic equipment.
这支镜头代表了1960s和1970s日本镜头制造商的独创性，当时的创新光学工程帮助日本确立了全球摄影设备的领导地位。

Serial
S203978 / 414353

Appearance
Minor scratches and stains from use.
-> 外观：使用留下的细小划痕和污迹。

Optics
There is no fog.
There is no fungus.
There is no balsam separation.
There are small scratches on the front element.
There are no large dusts.
No problem in the shooting.
-> 光学：无雾气。 无霉斑。 无树脂分离。 前镜片有小擦痕。 无大量尘埃。 拍摄无碍。

Functional
It has been confirmed to work properly.
The aperture blades move smoothly.
The aperture operates properly.
The helicoid operates smoothly.
-> 功能：经确认运作正常。 光圈叶片运作顺畅。 光圈运作正常。 螺旋对焦机构运转顺畅。

Bundled Items
All you can see on the picture will be included in a set of a package.
-> 附件：图片中所见的一切将包含在整套包装中。

Shipping
I ship it in Japan post Small Parquet.
Attach the tracking number.
Shipping is only available to the address registered in Catawiki.
As it is shipped from Japan, it cannot be shipped to Russia.
-> 运输：我将通过日本邮政Small Parcel 发货。附带追踪号码。仅寄送到 Catawiki 注册的地址。由于从日本发货，无法寄往俄罗斯。

Payment
We will ship the item 3 business days after your payment clears.
-> 付款：在您的付款清算后，3个工作日内发货。

International Buyers - Please Note:
This item will be shipped from Japan.
Import duties taxes and charges are not included in the item price or shipping cost.
These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.
-> 国际买家请知悉：本商品将从日本寄出。 商品价格或运费中不包含进口税费。 这些费用由买家承担。 请在出价或购买前向贵国海关部门查询相关额外费用。