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Re: [OM] Re: ( OM ) was megapixel madness

Subject: Re: [OM] Re: ( OM ) was megapixel madness
From: dreammoose <dreammoose@xxxxxxxxx>
Date: Mon, 16 Sep 2002 00:31:44 -0700
And fortunately, it's not particularly difficult to make them sharper. Lens design is a series of compromises between the laws of optics and available materials and manufacturing techniques (further mediated by cost). A 100mm lens for 6x9 has to cover an image circle of 108mm with good resolution, contrast, aberration control and minimal vignetting. Tell the lens designers they now only have to reach those criteria over a 43mm image circle and the whole mix of compromises changes drastically. Better resolution with equal or better other characteristics is a natural result of the changed design problem, not harder work or better skills. And on the cost front, smaller format lenses don't need as large elements behind the front and so can, all other things being equal, be smaller, lighter and cheaper.

Moose

Brian Swale wrote:

And, while I am on this topic, 35mm lenses NEED to be sharper if they are to compete in the sharpness stakes with medium format.



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