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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras
Thread started 17 Jan 2004 (Saturday) 18:20
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Poll"How frequently do you shoot RAW"
90%-100% of the time I shoot Raw
48
60.8%
50%-90%
11
13.9%
10%-50%
10
12.7%
Never, or very infrequently
10
12.7%

79 voters, 79 votes given (1 choice only choices can be voted per member)). VOTING IS FOR MEMBERS ONLY.
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iwatkins
Goldmember
1,510 posts
Joined Sep 2003
Gloucestershire, UK
Jan 24, 2004 12:39 |  #61

Hi All,

I've been playing/using the PS CS RAW converter for a while now.

Do note that "Camera Default" as supplied isn't set up in the best way, IMHO. Also note that it is possible to "Set" the Camera Default settings.

I.e. set up some default settings you like and the "Set" them as the camera default. Next image in will use these new default settings.

Even so, I think I must deviate from the default settings for every one in three images I convert from RAW.

Another note, do as much work as you can possibly do within the RAW converter before bringing in to PS, it certainly helps with the quality of the end result.

Another note, don't just adjust exposure, saturation etc. but also use the luminance smoothing etc. settings to get the best result you can get to before importing.

Cheers

Ian (who is very happy with the PS CS RAW converter, *now* I've found my way about)




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PacAce
Cream of the Crop
PacAce's Avatar
26,806 posts
Joined Feb 2003
ABE, PA USA
Jan 24, 2004 16:49 |  #62

iwatkins wrote:
Another note, do as much work as you can possibly do within the RAW converter before bringing in to PS, it certainly helps with the quality of the end result.

Another note, don't just adjust exposure, saturation etc. but also use the luminance smoothing etc. settings to get the best result you can get to before importing.

That's a very good suggestion, Ian. Ever since I started doing RAW conversions with PSCS, I have been using the sliders in the Adjust tab prior to conversion and then fine tuning, when necessary, in PS proper. However, I have yet to use the Luminance Smoothing control in the Details tab since I couldn't discern any changes in the preview window when I moved the slider. Can you tell me exactly what the Luminance Smoothing control does and when or how would I apply it?

Thanks.


...Leo

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Tom ­ W
Canon Fanosapien
Tom W's Avatar
12,743 posts
Joined Feb 2003
Chattanooga, Tennessee
Jan 24, 2004 18:51 |  #63

OK, I shot my first RAW today! My first impression is that those files are HUGE!

I've got a long way to go with processing, but I did play a little with the FVU. Since I have PS Elements, I don't believe that I have any other choice besides FVU. Anyway, I do like the ability to make adjustments on the semi-accurate monitor before I squeeze my pictures down into JPEGs. I'm especially interested in the ability to manipulate color temperature/white balance. If my S-400 is any indication, the camera will sometimes choose the wrong white balance in AWB mode.


Tom
5D III, 70D, & various lenses

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iwatkins
Goldmember
1,510 posts
Joined Sep 2003
Gloucestershire, UK
Jan 25, 2004 16:12 |  #64

PacAce wrote:
However, I have yet to use the Luminance Smoothing control in the Details tab since I couldn't discern any changes in the preview window when I moved the slider. Can you tell me exactly what the Luminance Smoothing control does and when or how would I apply it?

Thanks.

Hi leo,

I don't know the real answer to be honest.

But basically, on that tab you have Sharpness, Luminance Smoothing (grayscale noise) and Color Noise Reduction (colour noise).

When you increase Sharpness (or take their 25 default) you are introducing noise in the process. You might not see the noise at "Fit in View" preview or even if you zoom into 100%. But if you zoom in to 400% you can usually see an increase in noise due to the increase in Sharpness (see some example screen shots below).

I tend to have the following settings as Camera Default:

Sharpness = 30
Luminance Smoothing = 30
Color Noise Reduction = 0

Increasing sharpness tends to increase the amount of Luminance Smoothing I need to bring the noise back under control. High ISO shots tend to need more Color Noise Reduction to bring that back under control.

Of course, it is a balancing act. The more you luminance smooth/color noise reduce the more detail you lose.

My workflow goes as so:

Load up the image. Once I've adjusted my exposure, brightnes etc. I move onto the detail tab. In here I'll zoom the image to 100% and centre on the most important part of the image. If 30 for Sharpness isn't enough I'll bump it up a bit more. Once happy with the sharpness, I'll then zoom in to 400% to check for noise. I'll then dial in Luminance Smoothing to taste and at the same time use the Color Noise Reduction for colour noise.

Zoom back out to "Fit To View" and once happy will then apply and bring in to PS proper. Once there it is usally just cropping/resizing etc.

Cheers

Ian


400% Screen Shot - Sharpening Only

IMAGE NOT FOUND IMAGE IS A REDIRECT OR MISSING!
http://www.netcomuk.co​.uk ...ins/Other/RAW_Witho​ut.jpg (external link)
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO



400% Screen Shot - Sharpening and Luminance Smoothing

IMAGE NOT FOUND IMAGE IS A REDIRECT OR MISSING!
http://www.netcomuk.co​.uk/~iwatkins/Other/RA​W_With.jpg (external link)
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO



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PacAce
Cream of the Crop
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26,806 posts
Joined Feb 2003
ABE, PA USA
Jan 25, 2004 16:53 |  #65

Thanks, Ian. That was very informative. I tried it out and it worked great. I was able to see exactly what you were talking about regarding the ISO noises (both the color noise and the non-color...sort of like a whitish, blotchy...noise).

Thanks again for the info.


...Leo

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Joytek
Member
117 posts
Joined Aug 2003
Feb 15, 2004 05:47 |  #66

I always shoot RAW....

I couldn't imagine not doing so. Jpeg is only used when the image is finalized and about to be displayed on a monitor. For prints I use tiff.

Anyone using their d-slr just for jpegs is missing the point of having all that recording quality and all those post processing options (IMO).

w.




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Katie ­ Piecrust
Hatchling
4 posts
Joined Feb 2004
Feb 15, 2004 20:40 |  #67

Can't vote anymore it seems, but if I could I would have selected "90%-100% of the time I shoot Raw". I only shoot RAW these days. I used to shoot JPG as well, but all it took was one bad experience and a bit of home testing to decide RAW was the way to go for me. I do believe there is a place for both though. However I akin people who shoot only JPG to folks who like to run around in lightning storms, confident they'll never be struck. ;-)a




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