LX3 400 iso sucks??
/forum/topic/791916/0

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brainiac
Registered: Nov 22, 2005
Total Posts: 7524
Country: United Kingdom

Somebody has just emailed me a shot from a wedding I attended. It appears to be taken with a Panasonic LX3 at 400 iso. To be honest I am quite surprised by how poor it is and how noise and NR has clobbered the file so badly. It really wasn't that dark inside the church. Is this normal?


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cogitech
Registered: Apr 20, 2005
Total Posts: 10967
Country: Canada

For the sake of this couple, I hope you (or somebody) took some shots with a real camera.



brainiac
Registered: Nov 22, 2005
Total Posts: 7524
Country: United Kingdom

cogitech wrote:
For the sake of this couple, I hope you (or somebody) took some shots with a real camera.


Check.



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cogitech
Registered: Apr 20, 2005
Total Posts: 10967
Country: Canada





Sam Bennett
Registered: Sep 26, 2004
Total Posts: 4731
Country: United States

For the sake of this couple, I hope you (or somebody) took some shots with a real camera, with their flash gelled down to match the ambient light.



Tariq Gibran
Registered: Oct 01, 2006
Total Posts: 6608
Country: United States

Probably poor settings such as a lower jpeg quality and so forth. The sensor is about the size of your pinkie nail. Do you know what camera settings were used?



adamM
Registered: Jun 21, 2005
Total Posts: 242
Country: Canada

Is that the full frame, or a crop? Judging by the size of the grain, it looks like a crop..



KE David
Registered: Jan 13, 2007
Total Posts: 90
Country: United States

I took this photo with my LX3, iso 400. I found using my LX3 indispensable. It performs beautifully and I carry it everywhere with me. While traveling in Japan recently, it was often inconvenient to be carrying my 5D, but this little camera went everwhere!



KE David
Registered: Jan 13, 2007
Total Posts: 90
Country: United States


Oops - it can be found here. Not sure why it didn't upload to the previous reply.


http://soaplady.smugmug.com/gallery/8458472_AmwYR#556049310_2cZga



helimat
Registered: Apr 06, 2008
Total Posts: 3236
Country: Canada

After getting used to such cameras as the 1D Mark III, 5D, and 5D Mark II, I take for granted the low noise levels on higher ISO settings. When I see images from my Mom's Lumix or from my fiance's G9, I realize how spoiled I have gotten.



brainiac
Registered: Nov 22, 2005
Total Posts: 7524
Country: United Kingdom

KE David wrote:

Oops - it can be found here. Not sure why it didn't upload to the previous reply.


http://soaplady.smugmug.com/gallery/8458472_AmwYR#556049310_2cZga


Thanks a lot for that link. Your example is waaaay better - looks like I can put it down to user error.



Tariq Gibran
Registered: Oct 01, 2006
Total Posts: 6608
Country: United States

Well, if you look around at the original size of the image linked to, you will see the same poor noise pattern but thats the price of small sensors. The original image posted by richard is worse and was likely underexposed originally which would make the noise more visible after pp. We are spoiled with our larger sensors.



brainiac
Registered: Nov 22, 2005
Total Posts: 7524
Country: United Kingdom

Tariq Gibran wrote:
The original image posted by richard is worse and was likely underexposed originally which would make the noise more visible after pp.


I'm pretty sure there was no post-processing. Karen's picture shows that the LX3 can do much better. The original shot does not appear to be representative of all that the LX3 can do in the circumstances.



brainiac
Registered: Nov 22, 2005
Total Posts: 7524
Country: United Kingdom



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Sam Bennett wrote:
For the sake of this couple, I hope you (or somebody) took some shots with a real camera, with their flash gelled down to match the ambient light.


The couple are lit from in front by daylight, not flash.

There are a couple of reasons why I don't generally gel my flashes:
- if you are switching between daylight mixing, pure tungsten ambient, and other colours of ambient then you need to keep attaching and dismounting a range of gels
- tungsten ambient provides a nice warm glow a bit like evening sunlight and usually looks more cheerful than balanced white ambient which can look a bit clinical
- light sources, including tungsten ones, vary considerably in colour temperature: a hot tungsten will produce an off-putting bluish ambience, while disco lights and uplights will provide other variations

But it's a good trick if you need to balance the flash with tungsten.


pdmphoto
Registered: Jan 02, 2005
Total Posts: 3139
Country: United States

That must be a 100% crop, and a very poor example. My Panasonic TZ5 can do better than that.



thrice
Registered: Jul 10, 2008
Total Posts: 3035
Country: Australia

Fuji Superia xtra is better than that and it's like $2 a roll here in AUS.



Makten
Registered: Jul 14, 2008
Total Posts: 2892
Country: Sweden

LX3 sucks pretty bad at ISO 400 if you peep at 100%. But the above example is probably lifted in PP, and perhaps with ACR or something similar that can't do any usable NR.

This is a JPG straight out of the camera at ISO 400, f/2 and 1/25":



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100% crop with no sharpening or other PP:



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Even the slightest PP will reveal a terrible noise, but as long as you don't raise contrast or sharpen the picture, it's quite OK.

Edit: How about some sharpening? Now look what happened.



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Spyro P.
Registered: Mar 24, 2008
Total Posts: 1565
Country: Australia

It does suck by comparison but not so bad, I agree with Makten that they must have cropped, or sharpened or pushed exposure in pp. Its a capable camera but it requires very careful editing even at low ISO. Cant go pushing exposure or dodging like you'd do with a file from an APS-C and above sensor.



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