Archived posting to the Leica Users Group, 2014/10/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I just checked the specs of my X100S, which has a 23.6 x 15.6 mm sensor and a focal length of 23 mm. It has an f/2 lens which stops down to f/16. Unfortunately, it is now out of my hands for warrantee repair. Herbert Kanner kanner at acm.org 650-326-8204 Question authority and the authorities will question you. On Oct 10, 2014, at 9:52 PM, Frank Dernie <Frank.Dernie at btinternet.com> wrote: > The depth of field and onset of diffraction limit for sharpness is > completely different in small sensor cameras than those of 35mm. Very few, > if any, of these small sensor cameras stop down less than f8 since the > loss of sharpness due to diffraction is significant and the increase in > DoF unnecessary. > They didn't think of the type of thing you were trying to do, I suppose, > or making such a small aperture accurate (f16 on a 5mm fl lens is 0.012") > is not economically feasible. > > Frank D. > > On 10 Oct, 2014, at 23:34, Herbert Kanner <kanner at acm.org> wrote: > >> I just ran into a totally unexpected limitation of my Panasonic DMC-LX5, >> A camera which retailed new for $400, or with Leica brand, cosmetics, and >> firmware, $800. I was trying to photograph a small decorative waterfall, >> set the shutter to 1/15 to fuzz up the water, and picked the lowest ISO >> available: ISO 80. Then I discovered that the camera simply would not >> stop down below f/8, giving an impossible over exposure. Would I have >> bought the camera had I known this?I wonder. >> >> I did get it at half the new price, so I suppose it?s better than >> anything I could get new for $200. >> >> Herbert Kanner >> kanner at acm.org >> 650-326-8204 >> >> Question authority and the authorities will question you. >> >> >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >