I sent some calibration images for lenses I own that weren't on PTLens'
list yet. After looking around for a suitable target I settled on a
late 50's or early 60's grammar school. If you're in the US you
probably know the style... all aluminum and glass and very, very
rectangular. I got complimented on the quality of my calibration shots
with the comment that they were much better than most and made it easy
to do the calibration. Look for such a school building since I think it
makes the shooting easier as well.
Chuck Norcutt
Moose wrote:
.htm
>
> I use it all the time and have never noticed any artifacts from the
> process. I do any NR before PTLens (or any perspective correction,
> etc.), so the noise pattern won't be distorted. I'm not sure if it makes
> a practical difference, but should in theory.
>
> I don't know if it violates one of Nathan's personal processing taboos,
> but should at least be of assistance to others.
>
> It currently has calibration profiles for these lenses:
> Zuiko Digital 7-14mm f/4.0
> Zuiko Digital 11-22mm f/2.8-3.5
> Zuiko Digital 12-60mm f/2.8-4.0 ED SWD
> Zuiko Digital 14-42mm f/3.5-5.6 ED
> Zuiko Digital 14-45mm f/3.5-5.6
> Leica D Vario-Elmarit 14-50mm f/2.8-3.5
> Zuiko Digital 14-54mm f/2.8-3.5
> Zuiko Digital 18-180mm f/3.5-6.3 ED
> Zuiko Digital 40-150mm f/4.0-5.6 ED
> Zuiko Digital 40-150mm f/3.5-4.5
> Zuiko Digital 50-200mm f/2.8-3.5
> Zuiko Digital 50mm f/2.0 Macro
>
> One of you folks with the 25/2.8 should follow his specs for a
> calibration shot for that lens and send it to him.
> <http://www.epaperpress.com/ptlens/index.html>
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