Goyo Optical announces the launch of its New Focal Length Calculator. This web tool, available on GoyoLenses.com, allows users to quickly and easily calculate the most effective lens focal length for ...

For many, it’s the logical starting point for street photography – less punishing than a 28mm, but still more versatile than a 50mm. It offers a balance, and balance is often what a beginner needs ...

Focal-length calculator Needing to calculate wattage for your design? Incorporating a tailored sensor in your system? Minco, manufacturer of components Needing to calculate wattage for your design?

Choosing the right focal length is a crucial part of the creative decision making process for a photographer. You can have ...

\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.