Godfrey, I had some horizontal keystoning dialed in as well as the barrel distortion. Looking at just the top line of bricks, I thought I saw some moustache distortion after removing 2.6 )I think!) of barrel. (This is in CS2). But you're right, it could just be a slightly wonky wall.
Do you have any idea how the 20/2.8 does? Bigger but not huge, and the same price. Michael On 02/10/06, Godfrey DiGiorgi <[EMAIL PROTECTED]> wrote: > You're welcome. > > I couldn't shoot straight on to the wall as I was getting my > reflection in the center window, so the distortion you're seeing is a > combination of barrel distortion and keystoning from the angle I was > shooting at. There's also probably a bit of off-axis tilt as well, it > is a hand held shot. I've done a pass at correcting it by a sequence > of changes... > > Of course, the old church is such that there are hardly any truly > square lines anyway. I wouldn't panic based on this brick wall! > > But yes, the DA21 has a bit of barrel distortion. More than the DA14, > but then the DA14 is intended, I think, as an ultrawide rectilinear > for architectural work and *should* be nearly distortion free. The > DA21 is more of a general purpose wide-angle lens ... I find the > barrel distortion is only an annoyance on occasion. > > Godfrey > > On Oct 2, 2006, at 1:55 PM, Michael Abbott wrote: > > > Thanks for the test! Sharpness looks good, although I was really > > hoping > > there would be less distortion. I had a quick go at removing it in PS, > > and worse, it seems not to be the simple kind PS's lens distortion > > slider can fix - is this true? > > > >> (dpreview http://tinyurl.com/rz89h linking to http://tinyurl.com/s3g2u ) > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
