Archived posting to the Leica Users Group, 2012/09/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]This occurs because image stabilization is optimised for the plane of focus, and out-of-focus parts will be either undercompensated or overcompensated. On Fri, Sep 21, 2012 at 10:17 AM, Nathan Wajsman <photo at frozenlight.eu>wrote: > My experience is similar--without being able to put a finger on it, I have > always found images with IS to be, slightly weird, for lack of a better > word. As a consequence, I always switch it off on cameras that have it. > > Cheers, > Nathan > > Nathan Wajsman > Alicante, Spain > http://www.frozenlight.eu > http://www.greatpix.eu > http://www.nathanfoto.com > PICTURE OF THE WEEK: http://www.fotocycle.dk/paws > Blog: http://nathansmusings.wordpress.com/ > > > YNWA > > > > On Sep 21, 2012, at 7:07 PM, Jayanand Govindaraj wrote: > > > It does not happen all the time but quite often you get a sort of double > > image of the stuff in the bokeh when VR is on - see these examples, all > > with the first generation Nikon 70-200mm f2.8 and TC 1.7x, pretty much > wide > > open at f5: > > > > > http://gallery.leica-users.org/v/jayanand/Ranthambhore_001/March+2009/Ranthambore_20090309_795.jpg.html > > > > > http://gallery.leica-users.org/v/jayanand/Ranthambhore_001/March+2009/Ranthambore_20090305_556.jpg.html > > > > This is a very similar background with VR off, same lens combo, also at > f5: > > > > > http://gallery.leica-users.org/v/jayanand/Ranthambhore_001/March+2009/Ranthambore_20090309_177b.jpg.html > > > > Here is an article about Nikon's implementation of VR by Thom Hogan that > is > > very interesting: > > > > http://www.bythom.com/nikon-vr.htm > > > > The upshot is that nowadays I do not switch on VR unless I absolutely > > require it. I try to get by on shutter speed, and only if I cannot, I > rely > > on VR. With the low light performance of Nikon's sensors at present > relying > > on shutter speed alone is entirely possible. > > > > Cheers > > Jayanand > > > > > > > > On Fri, Sep 21, 2012 at 7:28 PM, <afirkin at afirkin.com> wrote: > > > >>> It always helps, I agree. I just jack up the shutter speed for my > >>> preferred > >>> aperture if I am in doubt, and let the ISO fall where it may. The one > >>> problem I have noticed with VR is that bokeh gets affected quite often > >> for > >>> the worse. > >>> Cheers > >>> Jayanand > >> > >> The bokeh: that is an interesting notion. I will sleep on it, but I > can't > >> see why holding the image stable will affect the out of focus > rendition. I > >> will keep an eye out for this though. > >> > >> The oly of course is smaller sensor: ie will always have greater DOF and > >> perhaps this could affect things. Smaller sensors are easier to > >> 'stabilize' in the body of the camera, but Sony has done it. NOt sure > how > >> well. > >> > >> Cheers and thanks for the comment > >> > >> Alastair > >> > >> > >> _______________________________________________ > >> 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 > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- Ken Iisaka first name at last name dot org or com