Luminous Landscape Forum

The Art of Photography => The Coffee Corner => Topic started by: Dale Villeponteaux on January 31, 2016, 09:50:39 pm

Title: Graphene lens/diffraction limit
Post by: Dale Villeponteaux on January 31, 2016, 09:50:39 pm

http://www.gizmag.com/optical-lens-one-billionth-meter-thick/41588/

Regards,
Dale

Title: Re: Graphene lens/diffraction limit
Post by: Bart_van_der_Wolf on February 01, 2016, 10:07:07 am

Quote from: Dale Villeponteaux on January 31, 2016, 09:50:39 pm

http://www.gizmag.com/optical-lens-one-billionth-meter-thick/41588/

Regards,
Dale

Interesting, but probably not practical for normal photography. I very much doubt the claim that it breaks the diffraction limit (MTF=0 at Cutoff frequency (http://spie.org/publications/optipedia-pages/press-content/tt52/tt52_151_diffraction_mtf) = 1/(f-number x wavelength) ), maybe they mean less diffraction than other lenses because the lenses can be very thin and relatively large (wide aperture) compared to other dedicated lenses for the subject it's shooting.

Cheers,
Bart