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Old Feb 28, 2005, 11:51 PM   #1
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I seem to be getting reasonable results from the D. zoom on my
FZ 20.
Very unlike my old Fuji.

Straight from cam, no crop, just a resize to 640x480

Anybody else having good results with this?

Jason
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Old Mar 1, 2005, 12:36 AM   #2
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i've had semi-decent results. i try not to use it, because it does rob you of image quality, but sometimes it's all you can do. my biggest problem is that at 36x or 48x zoom, using 3x or 4x digital, it's just too bloody hard to hold still, even with OIS, and i really need a tripod. the best shot i've had to date using digital zoom was this one of a kingfisher, shot at 3.7x digital. he was on a snag about 35-40 feet up in the air and about 50-60 feet away horizontally (maybe one of you mathematicians can figger out the slant range from that...), and even at 12x optical, it was just too far for a good image. but there was a fair bit of noise (for my taste anyway), even at ISO100 and 1/500 second, so i had to do some image clean-up to make it look presentable. i probably would've passed on the shot entirely, but actually seeing a kingfisher is pretty rare around here, and i didn't want to miss the opportunity...


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Old Mar 1, 2005, 12:44 AM   #3
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I also use it on occasion. Check out my recent posts of the Eagle.
When I have used it I thought the results were pretty acceptable. I recently bought the Pana 1.5 teleconverter and I have been even more pleased with the zoom results with that lens. I think the rule of thumb is; Try not to use it if you can. But, if you have too, that's why it's there. Post processing can really help too.

Good shooting,
smac
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Old Mar 1, 2005, 1:14 AM   #4
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Yep... It's pretty difficult to hand hold steady but I've had pretty good luck with it.. Untouched other than resized for posting.

Jeff
:|

EXIF with some of the irrelevant stuff deleted..
Make - Panasonic
Model - DMC-FZ20
DateTime - 2005:01:31 01:25:05
ExposureTime - 1/500 seconds
FNumber - 2.80
ExposureProgram - Manual control
ISOSpeedRatings - 80
DateTimeOriginal - 2005:01:31 01:25:05
DateTimeDigitized - 2005:01:31 01:25:05
MaxApertureValue - F 2.83
MeteringMode - Spot
LightSource - Auto
Flash - Not fired, compulsory flash mode
FocalLength - 72.00 mm
FlashPixVersion - 0100
ColorSpace - sRGB
ExposureMode - Manual
WhiteBalance - Auto
DigitalZoomRatio - 4.00 x
FocalLengthIn35mmFilm - 432 mm
SceneCaptureType - Standard
GainControl - None
Contrast - Normal
Saturation - Normal
Sharpness - Normal
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Old Mar 1, 2005, 9:43 AM   #5
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Same here....this one was 24X, 1/250, F 4.0, ISO 100

Hand held but braced against a wall which most likely explains why it's not as sharp as it could be.

Digi zoom on my FZ20 is far better then that of my
little Fuji A303. Go figure ...(:




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Old Mar 1, 2005, 10:48 AM   #6
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I'd rather use the optical zoom at max and crop. Better chance I'd think for a crisper shot. thekman.
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Old Mar 2, 2005, 2:12 PM   #7
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Have a look at the test photos I shot. I shottwo photos of my watch with the FZ3, using a tripod. One photo was takenat 12x zoom, the otherat 48x zoom.

The first picture is a 100% crop from the 48x photo, the second is a crop from the 12x photo, resized to 400% (with Corel Photo-Paint), which resultsin the same object size.





It's easy to see, that the 12x photo, resized to 400%, is much sharper than the 48x photo.

The third picture is the 48x photo, resized to 25%, the fourth is a 100% crop from the 12x photo.





Again we see that the 12x photo is sharper.

This shows clearly that digizoom is absolutly useless.
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Old Mar 3, 2005, 11:07 AM   #8
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Encouraged by what I saw I switched on the Digital zoom - it is indeed much better than what I got from my Canon S50 digital zoom.



Below woodpecker I took through a window, therefor I made a slicht color enhancement.
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Old Mar 3, 2005, 11:59 AM   #9
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Stoney79 wrote:
Quote:
This shows clearly that digizoom is absolutly useless.
I think that's a little off. Digital zoom is a tool that can be handy. The "test" is far from conclusive.
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Old Mar 3, 2005, 2:08 PM   #10
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RedHouse wrote:
Quote:
Digital zoom is a tool that can be handy.
Ok, if you don't want to do any post processing at all, you can use it. But if you do post processing anyway, you shouldn't use it, because software can "zoom" better.

RedHouse wrote:
Quote:
The "test" is far from conclusive.
What have I overlooked?
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