Chrlzs, on 13 October 2012 - 01:30 AM, said:
I'd suggest that the 'roundness' is pretty rough, and it is very difficult to determine its true shape given that the colours are similar to the background sky, it is out-of-focus and possibly motion blurred. I disagree with a certain analyst's use of the term 'domed'. This is after all a 2d image - and there is nowhere near enough resolution to be making guesses about any 3D aspect.
I agree with most of what you say here except that motion blur is less likely with a shutter speed of 1/1250
Chrlzs, on 13 October 2012 - 01:30 AM, said:
This might suggest:
- she may have been concentrating on the image on the camera's screen - if so, given the closeness of the colours to the sky, the object may not have been easily visible - anyone who uses such a small screen camera will know that the screens are not very good in bright daylight (and who knows how clean/unscratched her sunglasses were..

).
- the object may have been very close, and again if she was focusing on the screen or on the distant scene, a passing bug might not have registered, or if it did, her brain would have discarded that memory by the time she was reviewing the images..
Yes of course. But I also think that something ordinary such as a bag or balloon drifting in the wind would simply not register even if it were in plain sight - given that her attention was completely focused on the unexpected situation of goats on the road...
Just imagine yourself in the same situation. You're driving down a road and suddenly there are a dozen cows blocking it. Would you at that point notice and remember a plastic bag drifting in the wind ?
Chrlzs, on 13 October 2012 - 01:30 AM, said:
She may well be (a well-known and successful professional photographer), but in my humble experience the louder one tells you they are a professional...
I don't think this is the case here. They did check her background and mentioned she has a facebook page outlining her credentials and exhibitions as well as webpages dedicated to her work...
Chrlzs, on 13 October 2012 - 01:30 AM, said:
Agreed. While the S100 wouldn't be my first choice, I also have a choice of several cameras inc a DSLR, an EVIL (grin), even a medium format.. but my carry-everywhere camera is a simple Canon S130IS - it's a little more capable than the S100, but same sort of thing..
I'd have to disagree on the SX130IS vs the S100 ! The S100 has a larger sensor, Digic V, faster lens, RAW mode, in-camera HDR, better low-light performance as well as several other features not found on the SX130IS. Of course, the zoom on the SX130IS has a much greater range. But the point of the S100 is extreme pocketability. All this of course is quite beside the point... The "shooter" did choose the S100 to take with her !
Chrlzs, on 13 October 2012 - 01:30 AM, said:
I'm not sure I agree - I go into 'lazy' mode when on holidays, (...) but otherwise I mostly leave the camera in 'program' (semi auto) mode and do NOT manual focus.
I am not suggesting that she should have focused manually, just that she should have directed the camera at a point a bit further away so that the autofocus would have chosen a focus distance that would have increased the depth of field substantially. All I am saying is that it looks like it was important to her that her image appear clearly in the picture of the goats and in so choosing a close focus point, it made most of the picture loose the sharpness it would have otherwise had. In other words I am saying that...
1) it's a missed opportunity (the UFO might have registered far sharper than it did) and
2) the near focus point makes it clear that the object did not need to be very far away to lack sharpness.
Chrlzs, on 13 October 2012 - 01:30 AM, said:
In a case like this, knowing that the car doorsill and mirror would have been autofocused by the camera, I *might* simply have pointed the camera to something I wanted it to focus on, half-pressed the shutter button to lock focus and then recomposed to take the shot..
Yes. Exactly that. That's why I think she may have intentionally tried to make sure that her image would appear clearly on the picture.
Chrlzs, on 13 October 2012 - 01:30 AM, said:
Importantly, manual focus on these cameras is slow awkward, fiddly and quite difficult in daylight due to the small screen
The trick here is to use the scale instead of attempting to focus visually on the display. One sets the camera focus manually to a hyperfocal distance (based on the aperture setting and focal length) and leave it there. Not fumble with trying to focus visually. In the end though, it's likely that the close focus was intentional and for sure it is the cause of most of the image lacking sharpness.
Bottom line is that the camera did focus on a very near subject (This is not a theory or a guess since the focus distance, focal lenght and aperture are all recorded in the EXIF data and can be double-checked by anyone.) and consequently, most of the picture (beyond three feet...) is out of sharp focus.
Ironically (as I pointed out in my original post), had she focused at two meters instead of roughly half a meter, everything in the picture from 1 meter to infinity would have been in focus...
Moral of the story: Next time you see a herd of goats, don't aim the camera at something half a meter away !
Edited by ufoscan, 13 October 2012 - 05:37 AM.