GR IV HDF 是 GR IV 的衍生版，搭载了新的 2570 万像素 APS-C 画幅 CMOS 传感器与新研发等效 28mm 视角、 F2.8 光圈的定焦镜头，不过理光将原型机的 ND 滤镜更换成 HDF ...

全新发布理光映像欣然宣布「RICOH GR IV HDF」御光降临 耀目登场机身官方售价9599元搭载全新HDF以RICOH GR IV为基础而开发，承袭GR系列所具备的高画质、快拍性、便携性等特点的同时，搭载了HDF（Highlight ...

高光扩散滤光器可软化光源并扩散高光，以获得更具表现力的图像帕西帕尼，新泽西州，2025年12月16日–理光影像美洲公司宣布推出RICOH GR IV HDF。基于RICOH GR ...

顺带一提，目前市面上白柔滤镜的价格一般在两百元上下，哪怕是专业一些的白柔滤镜六七百元也能够拿下，这就显得理光的HDF技术毫无性价比可言了。 而且像相机这类产品，内部构造越简单越不容易出问题，而理光的这种可以说是「粗暴」的做法只会给相机的品控率埋下一颗定时炸弹。

2025年12月17日，理光映像欣然宣布，结合了高画质及便于快拍的小型轻量机身，适合专业使用的高端紧凑型数码相机“GR IV HDF”新上市。该机型基于理光GR ...

Hillary K. Grigonis is a tech writer, photographer, and licensed drone pilot. With over a decade of experience geeking out over the latest tech, she's an expert in cameras, drones, computing, and ...

Abby Ferguson earned her dual bachelor’s degrees in Art Education and Photography from the University of Kentucky, followed by a Master of Fine Arts from Kansas State University. This background has ...

B&H is pleased to announce the GR IV HDF - Highlight Diffusion Filter, a new variant of their much sought-after point-and-shoot camera. While looking largely the same, this unique model offers new ...

Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 14 years, which has given me a front row seat for the changeover from DSLRs to mirrorless cameras, ...

This places HDF 850.1 in a galaxy overdensity at z ≈ 5.2, corresponding to a cosmic age of only 1.1 billion years after the Big Bang. This redshift is significantly higher than earlier ...

为比较在线血液透析滤过（online HDF）和扩展血液透析（HDx）疗效，研究人员开展系统评价和荟萃分析。结果显示两者全因死亡率无差异，online HDF 在中分子清除上或有优势。该研究为肾衰治疗提供重要参考。 背景与目的：在线血液透析滤过（online HDF）和扩展 ...

BORDEAUX, France--(BUSINESS WIRE)--HDF Energy (mnemonic code: HDF) and its equity partners, the infrastructure fund Meridiam and the petroleum operator SARA (Rubis Group) today announced the start of ...