Go Back   Steve's Digicams Forums > Digital Cameras (Point and Shoot) > Fujifilm

Reply
 
Thread Tools Search this Thread
Old Dec 4, 2005, 6:08 PM   #1
Junior Member
 
Join Date: Nov 2005
Posts: 14
Default

Hello

On this image,quality is bad. very bad.WHY ? how to explain that.


http://img365.imageshack.us/my.php?image=bq9pw.jpg

This image is real size, I crop original , and exif is in file.

style="BACKGROUND-COLOR: #000000"APN S9500
ISO: 200
Speed 1/1000 is a little too fast
focal length 25 mm
Aperture 3,86

Thank for your help.
at.choum75 is offline   Reply With Quote
Sponsored Links
Old Dec 5, 2005, 4:50 AM   #2
Senior Member
 
malinstreak's Avatar
 
Join Date: Sep 2005
Location: Lichfield, UK
Posts: 149
Default

It looks to me there are 2 things affecting the quality.

Firstly, there is just not enough light. As you say 1/1000 was probably too fast. If you check the histogram it is all bunched towards the darker end using only 65% of the total range available. This was possibly caused because there was a lot of snow in the picture which is bright and the camera will try to compensate. In general for snowy scenes you should overexpose.

Secondly this is a very small crop representing about 5 cm of a printed picture. Blowing it up to full screen sizejust highlights further the lack of light. Have you tried printing to see how it comes out? My guess is that it would be much less noticeable when printed out.

I have had similar experiences withthe S9500, but I have also had very sharp pictures with the same camera. In fact all the cameras I have had, digital and film have taken bad pictures at some point andI put it down to user error. I think that there is often an expectation that if you get a better camera with more pixels then all the photos should be better but even the best DSLR can take a poor picture.

Having said that,if all the pictures you are getting are bad then itcould be a camera fault.
malinstreak is offline   Reply With Quote
Old Dec 5, 2005, 7:27 AM   #3
Senior Member
 
malinstreak's Avatar
 
Join Date: Sep 2005
Location: Lichfield, UK
Posts: 149
Default

As an example, here is a 100% crop of an image I took yeterday in low light, using anti-blur whichused ISO800.

The on screen result is very grainy and unsharp but with minimal processing (noise reduction and unsharp mask) the resulting print was as sharp as I achieved from my S5000 on a bright sunny day.
Attached Images
 
malinstreak is offline   Reply With Quote
Old Dec 7, 2005, 11:56 AM   #4
Junior Member
 
Join Date: Feb 2005
Posts: 7
Default

Can you post the post processed image too?

thanks
jonjon98765 is offline   Reply With Quote
Old Dec 7, 2005, 12:42 PM   #5
Senior Member
 
malinstreak's Avatar
 
Join Date: Sep 2005
Location: Lichfield, UK
Posts: 149
Default

This is the top corner of the printed version. I had resized it to 1200 pixels across, to print out a 6"x4" print at 200dpi.
Attached Images
 
malinstreak is offline   Reply With Quote
Old Dec 8, 2005, 12:07 AM   #6
Junior Member
 
Join Date: Feb 2005
Posts: 7
Default

Your results look very nice!!

You say, noise reduction and unsharp. Unsharp is a typical Photoshop or Elements term. Do you use one of these for your post processing?

Is the noise reducer a plug-in? [ Noise Ninja ?]

Hate to just keep asking questions but am sincerely interested in your results.

thanks


jonjon98765 is offline   Reply With Quote
Old Dec 8, 2005, 3:28 AM   #7
Senior Member
 
malinstreak's Avatar
 
Join Date: Sep 2005
Location: Lichfield, UK
Posts: 149
Default

Hi, I actually use Paint Shop Pro 9 but I guess the Unsharp process is identical to Photoshop or Elements.

For noise reduction I used Neat Image, a free program that Proton put me on to,(Thanks Proton). I have also tried Noiseware but I prefer Neat Image.
malinstreak is offline   Reply With Quote
Old Dec 8, 2005, 5:35 AM   #8
Senior Member
 
shadowlies's Avatar
 
Join Date: Sep 2005
Posts: 251
Default

At the moment I have Noise Ninja, how does this compare to Neat Image? Is Neat Image a plug-in that I can use with CS or is it a stand only program?

If people recommend that I change to Neat Image where can I download it from?

Thanks
shadowlies is offline   Reply With Quote
Old Dec 8, 2005, 5:40 AM   #9
Senior Member
 
SteveDak's Avatar
 
Join Date: Sep 2005
Posts: 1,471
Default

Hi Shadow,

Herewith Neatimage link : http://www.neatimage.com/index.html?56

Never used Ninja, but I've found Neatimage quite good and very useful at times - give it a go its free! Depending on what cam you have, youcan also download anoise profilefrom same site for your cam, to use with the program.

Steve
SteveDak is offline   Reply With Quote
Old Dec 8, 2005, 2:15 PM   #10
Senior Member
 
Join Date: Oct 2003
Location: Indian Rocks Beach, FL
Posts: 4,036
Default

Noise Ninja is at least as good as Neat Image. There have been comparative tests online and Noise Ninja usually wins by a hair. They improve them both regularly, so it is hard to say which is best right now. But if you have Noise Ninja there is no reason to switch.

I notice you used spot metering but it is hard to tell without the full frame what it might have been metered for. If the subject was in the spot frame in the viewfinder it should have metered better. Spot metering is a good idea in snow, but you have to pre-meter by holding the shutter release halfway with the center on the target. Then reframe holding the button halfway and take the photo.

Since you generated 1/1000 shutter speed I would guess a good exposure would have been around 1/400 or so. That would give you 1/200 at ISO100, which might have been sufficient for a 25mm focal length – I'm guessing that is about 120mm equivalent. I wouldn't raise the ISO to get a higher shutter speed than you need for still subjects.

slipe is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 5:44 PM.