Digital BW, The Print

For what it's worth, I just bought the canon 10-22 EFS lens using it on my Canon 20D ,primarily for architectural work.Although I've done no resolution chart tests, so far, I'm quite pleased with prints using  the 1760 at 16x24 print size.
Alan Zimmerman
  ----- Original Message ----- 
  From: Paul Roark 
  To: DigitalBlackandWhiteThePrint@yahoogroups.com 
  Sent: Wednesday, April 27, 2005 7:30 PM
  Subject: RE: [Digital BW] Re: Sigma lenses & Canon Digital cameras



  Clayton,


  > ... my question to Paul was not
  > theoretical.  I'm asking him what has been his practical experience so
  > far.  


  I did some shooting with the Rebel XT, comparing the 18 - 55mm zoom that
  comes with it to my old 50mm f1.8 standard Canon EF (cheap but very good)
  lens.  In the lab, the resolution tests made it appear the zoom was about as
  good as the 50mm.  In actual photos today, the 50mm looked significantly
  better.  The 50mm was very good at f4 and excellent from f5.6 on.  The zoom
  could only match the 50mm at the center at f11.  

  The real problem with the zoom was at the edges, especially in the dark
  greenery.  The best the zoom could do at the edges was not as good as the
  50mm at f2.8. I'm not sure why it looked so much worse in the field than
  lab.  I suspect higher flare contributed to wiped out the shadow details.

  So, I've made a full circle on the lenses.  I'm back to wishing my 24mm
  Sigma worked.  I may buy a 24 Canon, and use it and my 50mm.  It doesn't
  look like using the cheap zoom is going to be a fair test of what an 8 mp
  camera can do.  I would not consider a cheap zoom for my film use, so why
  should digital be any different?  (I'm not totally anti zoom.  My 50 - 200 L
  and Fuji Zi zooms are outstanding.  I'm not, however, ready to drop $800 for
  the 10 - 22 until I'm more convinced this digital approach is going to
  satisfy me.)

  Paul
  www.PaulRoark.com 





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