Archived posting to the Leica Users Group, 2003/04/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]In the examples we've been talking about standard 35mm camera lenses on film vs DLSRs with small sensors, isn't the circle of confusion the same since the lenses are all designed to cover 24x36mm? The DSLR just crops the frame. - --Jim - ----- Original Message ----- From: "Henning Wulff" <henningw@archiphoto.com> To: <leica-users@mejac.palo-alto.ca.us> Sent: Thursday, April 24, 2003 8:55 AM Subject: Re: [Leica] Digital Aesthetic > Jim got it right. DOF is dependent on focal length and aperture value > alone, and only slightly modified by the different circle of > confusion criteria for different formats. > > The shot with the 10D/50 will have significantly more DOF than the > one with the 80mm on 24x36. > > Anyone who has shot different formats will attest to this. A 180mm > lens has the same angle of view on 4x5 as a 50 has on 24x36. Shoot > both of a subject at the same distance and aperture, say f/8, and > you'll instantly see that the 24x36mm shot has immensely greater > depth of field. > > Optical theory substantiates this. > > -- > * Henning J. Wulff > /|\ Wulff Photography & Design > /###\ mailto:henningw@archiphoto.com > |[ ]| http://www.archiphoto.com > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html