SKU: 69391234122

Sigma 17mm F4 DG DN Contemporary For Sony E

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Description

Sigma 17mm F4 DG DN Contemporary For Sony ESigma 17mm f 4 DG DN Contemporary Dengan bidang pandang yang sangat luas dalam ukuran yang mungil, Lensa Sigma 17mm f 4 DG DN Contemporary menawarkan perspektif ultra lebar yang disukai oleh fotografer lanskap, fotografer jalanan, dan mereka yang bekerja dengan subjek interior dan arsitektur dalam ukuran yang ringkas dan portabel untuk penggunaan sehari hari. Ultra Lebar yang Sangat Kecil Menghadirkan bidang pandang yang imersif, lensa prime sudut

Sigma 17mm f/4 DG DN Contemporary

Dengan bidang pandang yang sangat luas dalam ukuran yang mungil, Lensa Sigma 17mm f/4 DG DN Contemporary menawarkan perspektif ultra-lebar yang disukai oleh fotografer lanskap, fotografer jalanan, dan mereka yang bekerja dengan subjek interior dan arsitektur dalam ukuran yang ringkas dan portabel untuk penggunaan sehari-hari.

Ultra-Lebar yang Sangat Kecil

Menghadirkan bidang pandang yang imersif, lensa prime sudut lebar ini menggabungkan perspektif luasnya dengan aperture maksimum f/4 yang moderat, yang membantu menjaga ukuran dan berat keseluruhan seminimal mungkin, serta optik yang mumpuni untuk menghasilkan adegan dengan ketajaman, akurasi, dan distorsi rendah yang tinggi. Lensa ultra-lebar seperti ini adalah pasangan yang sempurna untuk perlengkapan lanskap ringan, pemotretan sehari-hari subjek arsitektur dan adegan interior, dan bahkan sebagai pilihan kreatif untuk potret unik dan vlogging.

  • Lensa Contemporary Line memiliki desain ramping dengan ukuran sekitar 2,5 x 2 inci dan berat kurang dari 8 ons, sehingga cukup portabel untuk kebutuhan pemotretan sehari-hari tanpa mengorbankan optik atau performa.
  • Desain fokus internal dipadukan dengan motor AF bertahap untuk performa fokus yang responsif dan cepat, cocok untuk aplikasi foto maupun video.

  • Desain optik mencakup dua elemen SLD dan tiga elemen asferis, untuk mengoptimalkan ketajaman dan membatasi distorsi, serta Lapisan Super Multi-Layer yang mengontrol silau dan pantulan.
  • Jarak fokus minimum yang sangat dekat, hanya 4,7 inci, cocok untuk memotret subjek dari jarak dekat.
  • Diafragma 7 bilah yang membulat berkontribusi pada kualitas bokeh yang halus dan menyenangkan.
  • Kompatibel dengan fungsi bantuan AF dan koreksi aberasi lensa pada kamera yang didukung.
  • Konstruksi tahan debu dan percikan air dengan dudukan bayonet kuningan untuk memastikan akurasi dan daya tahan.

Lensa Seri I

Seri Sigma I adalah kelompok lensa yang kompatibel dengan full-frame, yang menekankan perpaduan ideal antara performa dan kekompakan untuk para pengguna kamera mirrorless. Menggabungkan performa optik tinggi dengan desain yang stylish dan ramping, lensa-lensa ini sangat cocok untuk kamera mirrorless modern dan para pengguna yang memprioritaskan lensa dengan tingkat kegunaan, portabilitas, dan kemampuan yang tinggi.

  • Lensa Seri I memiliki konstruksi seluruhnya dari logam, termasuk bagian aluminium yang dipotong dengan presisi pada bodi lensa yang menawarkan hasil akhir elegan yang sama awetnya. Material logam juga digunakan di seluruh konstruksi internal untuk menambah kekokohan dan keandalan yang terinspirasi oleh jajaran lensa Cine Sigma.
  • Cincin bukaan dan fokus yang bergerigi, bersama dengan tudung lensa logam bergerigi yang disertakan, semakin menambah pengalaman sentuhan yang menyenangkan.
  • Selain detail bertekstur, lensa ini memiliki sakelar AF/MF yang intuitif dan cincin apertur menyertakan posisi 'A' untuk peralihan cepat ke mode eksposur prioritas apertur.
  • Lensa Seri I menyertakan penutup lensa plastik konvensional serta penutup lensa logam magnetik untuk metode pemasangan yang lebih ramping dan minimalis.
  • Tutup lensa magnetik kompatibel dengan dudukan tutup magnetik CH-11 opsional.

 

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SKU: 69391234122

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S Navin
Bozeman, US
★★★★★ 5
An Essential Guide for Mastering Linux Kernel Development
Format: Paperback, Format: Paperback
Linux Kernel Programming - Second Edition: A Comprehensive and Practical Guide to Kernel Internals, Writing Modules, and Kernel Synchronization is an outstanding resource for anyone eager to understand the inner workings of the Linux kernel. Whether you're a beginner looking to get started or an experienced developer aiming to deepen your knowledge, this book delivers a well-structured and hands-on approach to kernel programming. The book starts with the fundamentals—setting up a kernel development environment, understanding kernel release nomenclature, and compiling the 6.x Linux kernel from source. As you progress, it dives into advanced topics such as kernel configuration, writing and debugging loadable kernel modules (LKMs), kernel synchronization mechanisms, memory management, CPU scheduling, and much more. Each chapter builds on practical examples, ensuring that readers not only understand the theory but also learn how to apply it in real-world scenarios. One of the book's biggest strengths is its focus on practical application. From exploring the kernel build process and bootloader configurations to working with Git for kernel development and troubleshooting system crashes using debugging tools, the book provides step-by-step guidance. The coverage of kernel synchronization techniques—including spinlocks, mutexes, and RCU—makes it an invaluable reference for those dealing with concurrent programming in the kernel space. Whether you're an aspiring kernel developer, a DevOps engineer, or a systems programmer, this book is a must-have. The clear explanations, well-structured content, and hands-on exercises make it a perfect companion for anyone wanting to go from a beginner to an expert in Linux kernel programming. Highly recommended for anyone serious about understanding and working with the Linux kernel!
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Reviewed in the United States on January 29, 2025
C
Cliente Kindle
Fort Morgan, US
★★★★★ 5
Broad, detailed and comprehensible book on Linux Kernel Programming
Format: Paperback, Format: Paperback
I got on my desk a copy of "Linux Kernel Programmin (2E)" by Kaiwan N. Billimoria and will shortly mention what this book is about. It is a book that you can read cover-to-cover to have a better understanding of kernel development, but I see also how it can be used as a reference when you are going to throw C code at your compiler and build a linux kernel. There is a number of scenario why you might want to do that: - You are recompiling the kernel for a new machine that needs better support - You are going to implement a kernel module and you need some context - You are going to work on the kernel yourself While all of those use-cases for the book are technically a fit, apart from gaining some higher understanding I see the most out of it if you are going to code on the kernel itself. There you have everything that is needed. You can go back and forth between your code and the book, and still learn by doing. What mostly impressed me is the breath of the topics: the chapter about writing a config file for the kernel enlists a total of seven (7!) different strategies to get started with a configuration file for your kernel. Also a lot of side tools are mentioned to help out with kernel development and debugging. Quite some module development can be in theory done without fully understanding the details of the kernel itself, but the deeper you reach, the more you will need the details that are well discussed in the book. Memory allocation, CPU scheduling algorithms, the book does not try to save words and describe in detail and plain language most things there is to know, not sparing plenty of references to other books and articles. Also, the material is up-to-date with the latest kernel.
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Reviewed in the United States on March 8, 2024
S
Sergio Prado
Dallas, US
★★★★★ 5
For begginers and also experienced kernel developers!
Format: Paperback
There are a few aspects about the book that I really like. One is that every chapter provides a very detailed and immersive look into a specific part of kernel development. Another interesting aspect about the book is that it is based on a very recent kernel version (6.1), which is also an LTS version that will be maintained for a few years. I am not aware of any other book about the Linux kernel based on such a recent version. The first 3 chapters of the book explains how to configure and build the Linux kernel (both natively for x86_64 and cross-compiling for AArch64). After that, chapters 4 and 5 explains all you need to know about how to write kernel modules. And starting from chapter 6, the book introduces different aspects of kernel programming in very detail, from the scheduler to memory management and synchronization. Get ready, because it is indeed a big book, with more than 800+ pages! I really think the book targets both beginners and experts. For beginners, it will be a deep dive into major kernel programming concepts (make sure you follow along the exercises proposed by the author). For experienced kernel developers, the book is really a refresher. Though I work with the Linux kernel for 15+ years, I can still learn a lot by reading the book. An old dog can always learn new tricks, right?
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Reviewed in the United States on May 30, 2024
P
Verified Purchase
princesscoldheart
Phoenix, US
★★★★★ 5
Organized well. You can read it section by section. Fantastic information. Clearly presented.
I like this book better than "what to expect" because this one does a better job of what you'll ACTUALLY expect versus telling you the throngs of horrible things that could happen to you or your baby. I'd rather be informed than mentally prodded with scary information. On one hand, it's good to know what could happen, so the other books you've probably already ordered are good to skim through, but this book I recommend reading all the way through. Easy to read, you'll actually have TIME to read it because you can read the age your baby is instead of a book that's all mixed up and organized by diseases and threats. Clear photos and explanations and tips on how to make your life and baby's life easier and better. I've understood my baby's needs better because of this book. I feel really glad I got it because it was the only book that really helped my daily life with my newborn.
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Reviewed in the United States on November 21, 2013
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thibault rosazza
Omaha, US
★★★★★ 5
Useful
Format: Hardcover
Comprehensive book from 0 to 1 year. This book provide good tips and tricks on how to raise and take care of your newborn. Well designed, we come back to it time to times to get some help and support.
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Reviewed in the United States on September 18, 2025

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