The heavyweight Sigma 300-600mm F4 DG OS Sports zoom lens matches an extreme telephoto angle of view with a bright f/4 ...

These lenses have optics that swing from side to side ... This is short for aspherical and simply means that the optical formula uses some aspherical lens elements in its design.

These high-performance hybrid micro-optics achieve high focusing efficiencies ... e.g., white light. If a single lens is used to focus this light, different wavelengths focus at different points ...

RF and L mount versions are manual focus only Composition can be tricky at such a wide angle Strange pentagonal bokeh using the autofocus version Testing the Venus Optics Laowa 10mm f/2.8 Zero-D ...

such as the Laowa 55mm f/2.8 tilt-shift 1x macro from Venus optics. Basically, a tilt/shift lens features two axes of possible adjustments to control different aspects of the image. Shifting moves ...

From the Composer Pro II to the Sweet 50, these are the best housing and lens options. Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 13 years ...