A retrospective case-note review was undertaken of patients under 8 years old who underwent cataract surgery with primary lens implantation in a regional referral centre for paediatric ophthalmology, ...
\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.
Look at the insane zoom that $75,000 worth of glass got you in the 1990. It’s the work of the Zoom-Nikkor 1200-1700mm f/5.6-8P IF-ED lens, 18 elements assembled in a body that looked like a ...
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