Archived posting to the Leica Users Group, 2008/06/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Pick up a PDN magazine, and you'll see ad stock,wedding images, and commerical shots all have one thing in common. They all have darkened corners now. I don't think the vignette is really an issue. Chris ----- Original Message ----- From: "Leonard Taupier" <len-1@comcast.net> To: "Leica Users Group" <lug@leica-users.org> Sent: Friday, June 20, 2008 8:35 AM Subject: Re: [Leica] "Budget" full frame Nikon SLR > Frank, > > In the case of the 10.5mm fisheye, the image you get on a full frame > digital camera or a film camera looks kinda like a clearly defined > keyhole in the middle of the frame. Other DX lenses like the 18-200 zoom > do not fill the frame at the wide end. The 1.5x crop with these two > lenses is the only practical solution if you have a large number of > photos to process. You are not losing information with the crop because > there is none to lose. > > The vignetting I mentioned is on full frame, older lenses, like the AFS > 17-35mm when used on the D3. The vignetting on this lens is unacceptable > for a professional lens which this is. To a lesser degree the AFS VR > 70-200 lens has the same problem. > > Len > > > On Jun 20, 2008, at 12:12 AM, Frank Filippone wrote: > >> I guess that while your explanation makes perfect sense, in practice: >> if I have the choice of either having a bigger file with more data in it >> to >> decide later, on my computer screen what I want to crop, >> why would I want to initially crop in the camera and maybe miss >> something in >> the heat of shooting? >> >> Vignetting in easily cropped out later...... which is the issue with DX >> lenses used on an FX body ( if I have the nomenclature correct...) >> >> I am still missing something..... >> >> Frank Filippone >> red735i@earthlink.net >> >> >> >> The reason to publish FX and DX specs is the full frame Nikons can >> use the Nikon Dx lenses that were released before the full frame >> cameras came out. The D3 can automatically switch to DX mode when >> these lenses are used. Nikon hardly ever obsoletes their lenses. As >> Chris mentioned he can use his 10.5 MP fisheye on his D3 even though >> it was designed for the 1.5 X crop bodies. >> >> Len >> >> >> On Jun 19, 2008, at 6:21 PM, Frank Filippone wrote: >> >>> Question: >>> >>> There appears to be a trend to publish the image (pixel) sizes of >>> the image >>> both for FX and DX formats.... >>> >>> Why would any rational person use a DX ( smaller) format if he had the >>> larger format available to him? ( It is called cropping..... in old >>> fashioned speak) >> >> >> >> >> _______________________________________________ >> 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