I tested Sigma's f/1.8 zoom for APS-C cameras for a month – it's a prime lens killer with one drawback

The Sigma 17-40mm f/1.8 DC is a majorly impressive zoom lens, and fills a huge gap especially for the Canon RF-mount ...
AZOM

Achieve Reliable Creep and Stress Rupture Testing

Applied Test Systems takes pride in introducing the SIGMA Testing System, an evolutionary system for Creep and Stress Rupture testing. SIGMA is a groundbreaking step for WinCCS plus first- and ...
FiercePharma

Sigma-Aldrich to Acquire BioReliance; Extending Its Reach into Biopharmaceutical Testing and Services

ST. LOUIS, Jan. 9, 2012 /PRNewswire/ -- Sigma-Aldrich Corporation (NASDAQ:SIAL), a leading Life Science and High Technology company, announced it has signed an agreement to acquire BioReliance ...
AZOM

Sigma-for Creep and Stress Rupture Testing

Let us help you with your inquiries, brochures and pricing requirements Request A Quote Download PDF Copy Request A Quote Download PDF Copy Request A Quote Download ...
Electronic Design

An Alternative to Sigma Clipping in Shaker Testing

Many shaker controllers for random vibration testing are based on the well-established FFT data processing algorithm. A test specification is given in the frequency domain in terms of power spectral ...