> Hi Mike, > What is large structure contrast? How does that difffer from contrast? Are > contrast and resolution at odds in lens making formulas? Do high resolution > lenses generally exhibit less contrast? I need some education here. > Paul
The 'Primer' on lenses I always recommend to people is the little appendix section at the end of Canon's book _Lens Work_...if you can abide buying something that says 'Canon' on it. <g> Large structures are, say, 5 lp/mm, perhaps generically the top set of lines on the MTF chart. Some education at: http://www.luminous-landscape.com/lens-contrast.htm (My article "Understanding Lens Contrast.") --Mike "Photography is simple. The only complicated thing is keeping it simple." (Ken Archer) * * * Find out about Mike Johnston's unique photography newsletter, "The 37th Frame," at http://www.37thframe.com. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .

