An achromatic lens is a lens that is designed to limit the effects of chromatic and spherical aberration,and is corrected to bring two wavelengths (typically red and blue) into focus on the same plane ...

An achromatic cylindrical lens is composed of a positive low refractive index cylindrical lens and negative high refractive index cylindrical lens cemented together, which can significantly reduce ...

Black, Peter and Black, Tina Arbon 2020. Fundamentals of ophthalmic dispensing 10: Single vision lens design – part 1. Optician, Vol. 2020, Issue. 7, p. 8293-1.

The best iPhone lenses are a sure fire way to take your iPhone photography up a level. Sure, the iPhone 15 Pro has a 48MP sensor, which sounds great on paper, right? Well, ask any professional ...

The best lenses for astrophotography enable you to capture the stars at the highest quality possible. Our roundup includes models for all leading camera brands. You'll want to own one of the best ...

Buying contact lenses online comes with a few key benefits that you don’t get from in-person shopping: It’s more convenient and faster, and the contacts are typically cheaper than buying at ...

Owning one of the best lens heaters is an absolute must if you're shooting in cold conditions to prevent your glass from fogging up. Owning one of the best lens heaters is a must if you're a ...

Our lens reviews offer detailed information on sharpness, distortion, bokeh, and all the other important factors that go into making a lens great. Our reviews give you all the information you need ...

If you are squeamish about your eyes, look away now. But if you’re struggling with your vision, or have cataracts, is lens replacement surgery really a safe option? Also known as refractive lens ...

Whether you’re looking for a specific image or trying to find information about a photo you’ve found, here’s the information ...