Which SD card?

SD memory cards are used for everything from mobile phones, field recorders, still cameras, and video cameras. The most common question is... which SD card should I buy? This article will decode all of the designations and provide simple answers.

Comparing vintage 28mm lenses

I love the 28mm field of view and wanted to update my insights now that I've returned to using a full-frame camera. Here I will compare five different 28mm film-era lenses, namely:

• smc PENTAX 1:2 28mm (1976) 
• Carl Zeiss Distagon T* 28mm f/2.8 (1978) for Contax-Yashica mount
• Kino Precision Kiron 28mm f/2 MC (1981)
• Vivitar 28mm 1:2.0 MC Close Focus (1983) made by Komine
• SMC PENTAX-A 28mm f/2.8 (1984)

This article is the result of months of work shooting in real-world scenarios and staged tests. Hopefully of interest to other photographers... like you!