View Single Post
  #8  
Old June 10th 10, 01:27 PM posted to rec.photo.digital,rec.photo.digital.point+shoot
Peter[_7_]
external usenet poster
 
Posts: 2,078
Default Councillor Anderson, handheld at full zoom

"Pete" wrote in message
news:201006101320053118-availableonrequest@aserverinvalid...
On 2010-06-10 12:43:10 +0100, Peter said:

"bugbear" wrote in message
...
Dudley Hanks wrote:
http://www.blind-apertures.ca/Latest...orAnderson.jpg (full
size)

http://www.blind-apertures.ca/Latest...ersonSmall.jpg
(fast loading)

Visited City Hall this morning and brought along the SX120 in order to
see how it works at full zoom.

Took this pic from the back of the room, handheld at 1/100 sec (360mm).

I'm sure you will find a bit of camera shake, but I'm really interested
in how the barrel distortion appears, ditto for purple fringing...

Appreciate anything you can tell me.

Barrel distortion can be trivially post corrected.



Is that barrel distorting, or a curved wall?


Distortion at full zoom is pincushion.


true

Here it is offset by the curved wall and is barely detectable towards the
top left corner.


I didn't notice the pincushion, but thought bugbear might have been
confusing the curved wall with barrel distortion.


--
Peter