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Old Dec 22, 2008, 8:34 AM   #21
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pitahaya, litschi, physalis, maracuja


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Old Dec 22, 2008, 11:58 AM   #22
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original, only resized ... ouuuu, my lens burns ...



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Old Dec 22, 2008, 5:59 PM   #23
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SX1 video clip, 140 MB, converted with SUPER to divx (8mbps), mp3 (44khz, 128 ), 33 mb - format 1920x1080

http://www.megaupload.com/?d=48BLK3K3

insert 3 characters right and wait for 45 sec






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Old Dec 24, 2008, 9:59 AM   #24
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What happened to the chromatic aberration everyone is complaining about? That seemed to be a rather severe handicap of the Canon Powershot SX1. Or is it filtered out?
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Old Dec 24, 2008, 11:18 AM   #25
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Some people search for devil - and they find devil. :blah:Or see it

I couldn't see CAs, all pictures are original, only resized. Nothing is filtered out.
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Old Dec 30, 2008, 1:01 PM   #26
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Old Jan 5, 2009, 7:31 AM   #27
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DonalDuc wrote:
Quote:
this picture is original, not shrinked- 640x480, made with SX1 with 80x safety zoom - that means: optical, not digital.

horse head is ~ 4 cm, camera distance (on tripod) is ~ 4.5 meters.

lights: 1x 60W-bulb / 1x small 20W spot light



----------------------------------------------------------------------------------------------------

1600x1200 - 46x optical zoom (4:3)



2272x1704 - 28x opt. zoom (4:3)



1920x1080 - 40x opt. zoom (16:9)





I just wanted to clarify this point for anyone reading this thread of great photos.

The safety zoom feature is not optical zoom, the optical zoom is 20x on the SX1, however it is not a traditional digital zoom either.

A traditional digital zoom works by using less pixels in the middle of the sensor and then interpolating them to make it back to the original size. This pretty much does nothing apart from degredate the quality of the photo.

Safety zoom comes into play when shooting at lower resolutions and it gets the zoom by using pixels nearer the middle of the sensor rather than using an even spread across the whole sensor. It is the same thing and quality as one of us taking the original full 10mp shot and doing a crop on the middle of the frame.

I'm not saying this is not a nice feature for anyone who is not shooting in full quality and it is great when shooting HD video, but it is not an optical zoom in the true sense.
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Old Jan 5, 2009, 8:25 AM   #28
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You said a mouthful about this thread. It is amazing. I normally don't care to see other peoples results but these photos are an outstanding exception.

About the safety zoom, or whatever it's called, I think seeing some actual results makes it much clearer than the manual does. Sure, it's cropping of sorts but the advantage is that you see what you're shooting before you process it. I'm looking forward to using this tool when I next go to Yellowstone Park to see those great animals.

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Old Jan 5, 2009, 3:43 PM   #29
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A camera - I say SX1 (it's the same with ALL other cameras!) with 4:3 ONLY can take pictures

a)with ONE sensor 1/2.3" - 3648 x 2736

b) with ONE lens, zoom 1x to 20x

There is no difference of picture-taking, wether the picture is 3648x2736 or 640x480 !

There are no possibilities to change this two technical facts.

If you select another (smaller) format, then the pixels are calculated "down" to new size.

Optical zoom is 1x to 20x - and stays max. 20x.

If "safety zoom" is active - other manufacturers offer same opportunity, but different names for their "inventions" ;--) (Olympus, Panasonic ...) then - how Mark1616 said, a PART of the 20x zoomed picture is calculated to new size.

In DIGITAL zoom, the pixels are "multiplied" - you can do it also with software on PC (much better). Digital zoom is nonsens (Sony camcorders & others allow 800x, 1000x, even 1200x digital zoom :blah:to magnify a nude girls nipples to 4 pixels - if your tripod is earthquake-safe)


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Old Jan 10, 2009, 4:27 PM   #30
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SX1 (and SX10) don't have a thread, only concentric rings, but I use my (heavy) fisheye with it. No problem, even with tele (but this is sensless)





Some fisheye pictures from today from a 3-hours-walk, it had -8° ... fine temperature! -15° is cold, more is warm.












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