计算机中的宏为什么起名叫宏？ - 知乎
Mar 30, 2013 · 看 Macro (computer science) macro一词不是微软发明的，而是计算机科学中长期存在的一个术语，最早出现在1959年的文章 The Share 709 System: Programming and Modification 中。 …
macro-F1和micro-F1得分分别适用于什么场景？ - 知乎
但每种情况下选用macro-F1、micro-F1，会有一些特例情况产生，下面就针对以上场景，一个个举例给大家看看，到底macro-F1、micro-F1在什么情况下选用会更合适。 第1种情况：各个类别下样本数量 …
S-M-C/Super Macro-Takumar 50mm F4 - Pentax Forums
Feb 21, 2025 · S-M-C/Super Macro-Takumar 50mm F4 lens reviews and specifications. The Takumar 50 mm f/4 is a series of legendary manual-focus macro lenses for M42 screw-mount cameras, …
SMC Pentax-F 100mm F2.8 Macro Reviews - F Prime Lenses - Pentax …
Aug 19, 2025 · SMC Pentax-F 100mm F2.8 Macro lens reviews and specifications. The SMC Pentax-F 100 mm f/2.8 Macro is a landmark lens in Pentax history introduced in 1987 as the company s first …
Tamron Adaptall-2 SP (52B/52BB) 90mm F2.5 Lens Reviews - Tamron ...
Jul 17, 2025 · Tamron Adaptall-2 SP (52B/52BB) 90mm F2.5 reviews and specifications. [i]"A very good 1:2 macro lens with above average resolution and contrast. Performance is fairly similar to Kiron's …
SMC Pentax-A 35-105mm F3.5 Reviews - Pentax Forums
May 23, 2025 · SMC Pentax-A 35-105mm F3.5 lens reviews and specifications. The SMC Pentax-A 35 105 mm f/3.5 is a manual-focus, constant-aperture zoom lens introduced in 1984 and produced until …
SMC Pentax 50mm F4 Macro Reviews - K Prime Lenses - Pentax Forums
Mar 19, 2022 · SMC Pentax 50mm F4 Macro lens reviews and specifications. The SMC Pentax 50mm f/4 Macro (K version) is a vintage macro lens introduced in the mid-1970s as Pentax s first K-mount …
Sigma Lenses for Pentax: Zoom Lenses - Pentax Lens Review Database
Reviews of lenses by Sigma, Tamron, Tokina, Zeiss, Zenitar, and others designed for Pentax cameras. Comprehensive Pentax lens database with specifications and user opinions.
SMC Pentax-F 35-70mm F3.5-4.5 Reviews - F Zoom Lenses - Pentax …
Apr 26, 2025 · SMC Pentax-F 35-70mm F3.5-4.5 lens reviews and specifications. The SMC Pentax-F 35 70 mm f/3.5 4.5 is a compact autofocus zoom lens for Pentax K-mount 35 mm and full-frame digital …
Miscellaneous Lenses for Pentax: Zoom Lenses - Pentax ... - Pentax …
Reviews of lenses by Sigma, Tamron, Tokina, Zeiss, Zenitar, and others designed for Pentax cameras. Comprehensive Pentax lens database with specifications and user opinions.