Friday, 27 May 2011

FujiFilm HS20 EXR - Raw File Colour Bleed

Want to join a photography centric forum ? To join the EyeMindSoul Photography forum, click here


-----------------------------------------------------------------------------------------
Now, the heading may be a little confusing but I noticed when using Lightroom or Photoshop/ACR, that particular attention needs to be paid to the Color Noise Reduction, and more particularly the Color Detail.

The default settings are Color (Noise Reduction) + 25 and Color Detail + 50. I have found that, particularly, increasing the Color Detail control gives much cleaner colour separation.

Anyway, some examples below to show what I mean but you should experiment with the levels that give the most pleasing result.

Note : Clicking any image will take you to a larger size

The original image.



The original opened in Lightroom, enlarged to 100% view and showing the top left corner, and also showing the default noise reduction settings.



The image after adjusting the sharpness and noise controls. The aim is to reduce noise, improve colour separation and also keep as much detail as possible. As I am viewing at 100% (huge) I am not overly concerned about leaving some luminance noise (grain).

Note the edge of the green fabric and also the yellow flower centres on the pink fabric.



The two images now shown side by side. Original at left and adjusted image at right.



Another section of the images and showing correct colour separation/distinction of the various product labels.



The original image.



The adjusted image.


Another example, again the original is at left (with default settings) and the adjusted image at right and viewed at  larger than original size.



So, if you use Lightroom, or Photoshop, to convert/adjust HS20 EXR Raw files, be careful of the Color NR and Color Detail settings. The same is quite possibly true for any EXR Raf files.

Incidentally, this does not happen with the SilkyPix Raw converter.

That's all.

Cheers


...

Monday, 23 May 2011

FujiFilm HS20 EXR - Impressions

Had my hands on a FujiFilm HS20 EXR for a while today. About 30 minutes total.

So, I did a quick walk around the area and through the local market. I mostly shot Raw + Jpeg and the images below are the Jpegs straight from camera without any editing done.

The images below were all shot in :

P Mode, Large, 4:3, Fine, NR = Low, Astia, -0.33 EV, ISO 800 (Auto), DR 200% (or 400%)

I also had AF Tracking set to on and used it by simply 'half-pressing'.Same as I do on the HS-10.

Apart from the settings described, everything else was set to factory default.


Note : Clicking on any image will take you to a larger size which will have the Exif data intact

















































































This next one was shot with AE Spot set to on.




















So, my impressions ?

Well, compared to the FujiFilm HS-10 :
  • Jpeg and Raw write times are faster. Not by huge amounts but definitely faster, especially for Raw
  • LCD is simply superb but EVF is the same as the HS-10. Good, but not great
  • Lens is just as sharp as the HS-10. Great lens
  • The in-camera Jpeg processing leaves little to be desired. It's a tough job to get a better image from the Raw file, colour wise. More about that later
  • At 24 mm it is wider than the HS-10 but also wider when at full zoom
  • I really like the colours but would probably shoot M Fine as there are some artifacts at L Fine. Same as previous generation EXR cameras have exhibited
  • DR is good (with the settings I used) but not as good as I can get out of the HS-10. Mind you if I had more time, and set differently, I am sure I could squeeze more out of it. More my fault than the camera
  • CA is well controlled
  • AF Tracking works in just the same way as on the HS-10 and is definitely worth always having on

Incidentally, it was blazingly hot today and the light very contrasty. Hence a lot of the images I deliberately looked for very bright versus very dark areas, to see how the DR held up.

Also, as it was very hot, the over temperature warning came on after a few minutes. Keep in mind that the camera was on the whole time (about 35 minutes), it never wanted to shut down, and the firmware was v 1.01. 



Cheers


...