Creation of t

Started Sep 24, 2012 | Discussions thread
John Deerfield
Senior MemberPosts: 2,083
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Re: Creation of t
In reply to MundayEdits, Sep 27, 2012

How much do you like math? Any lens design must overcome several aberrations:

http://en.wikipedia.org/wiki/Lens_ (optics)

http://demonstrations.wolfram.com/LensAberrations/

This is why the simpler the lens construction (a prime lens which is a single focal length) is generally a better lens. Primes are certainly faster (wider aperture allows for faster shutter speed all-else-being-equal). So you start with the premise that every lens under the sun is a compromise to achieve a certain result. Most often, the compromise is money. For star gazers you can pick up a powerful telescope on Amazon for $1500. Or their is the Hubble at 1.5 billion dollars. Other compromises are going to be weight, quality of build, and of course image quality.

As others have pointed out, there are several different "superzooms" out there. It's up to you to decide on which compromises you are prepared to accept!

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