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Marco S Hyman

Marco S Hyman

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I'm still learning about my 7D. One of the things I've learned is that the images need post processing sharpening, much more so than with my Rebel Xt. Perhaps this is due to the larger resolution. Or perhaps it's because Apple sharpens RAW images more than DPP. I never used DPP with the Rebel.

Anyway, this is a screen capture of a DPP 100% crop before (above) and after (below) applying a sharpening value of 5.



What a difference. I'll be curious to see if I have to give some extra sharpening once Apple releases raw support for the 7D.

The Lens, BTW, is an EF 24-70 f/2.8L wide open at 70 mm. Distance to target was about 6 feet.

My education continues.
 
Yes, I used the ldt link which recommended 5.7 feet for a 70 mm lens on a 1.6 camera to get a DOF of about 2.6 inches. Although, it looks like they just used the lens length times 25 to get the value.

25 x 70 mm / 25.5 mm/inch / 12 inches/foot = 5.74 feet

I think Canon recommends 50 * the focal length. I might try it again at 11 or 12 feet. That won't effect the needed sharpening, though. Sharpending is the subject of this thread. ;)
 
Ahhh, at 11 1/2 feet (50x 70 mm) the DOF would be on the order of a foot which makes it much harder to see the changes. I suspect that's why the tool I used recommends 25x. Unless the lens was way, way off you're not going to see much error with a DOF of 11.8".
 
Marco, were you shooting in RAW or JPEG with the Rebel? Generally speaking, digital images all need sharpening, although when shooting JPEG the DIGIC processor applies it.
--
DeepJay
 
I've noticed a big sharpness difference between my 7D and xxD cameras. I've applied DPP sharpening to my photos and noticed a dramatic difference.

I've also noticed in-camera sharpening to make a big difference too. If the camera is left at zero sharpening the pictures are quite soft. I've seen that a little increase in sharpening produces a dramatic effect.
Marco S Hyman said:
I'm still learning about my 7D. One of the things I've learned is that the images need post processing sharpening, much more so than with my Rebel Xt. Perhaps this is due to the larger resolution. Or perhaps it's because Apple sharpens RAW images more than DPP. I never used DPP with the Rebel.

Anyway, this is a screen capture of a DPP 100% crop before (above) and after (below) applying a sharpening value of 5.
Click to expand...
Marco S Hyman said:
What a difference. I'll be curious to see if I have to give some extra sharpening once Apple releases raw support for the 7D.

The Lens, BTW, is an EF 24-70 f/2.8L wide open at 70 mm. Distance to target was about 6 feet.

My education continues.
Click to expand...
 
Marco,

Not sure what you are talking about when you mention Apple....

You say that your 7D images need post processing sharpening while your XT images did not? Then you say that you are using DPP with your 7D and never mention the program that you used to open your XT files....

But if you are asking if you open one camera's RAW files with one program and another camera's RAW files with a different program... then .... Yes, You can expect different results! This has always been the case.

Sort of like cutting a peach with a spoon and an orange with a knife. LOL

The images above look what I would expect with DPP depending upon which picture style you are using.

John

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Feel free to use any of these additional letters to correct the spelling of words found in the above post: a-e-t-n-d-i-o-s-m-l-u-y-h-c If you find any extra letters, please place them here for future use...
 
I have noticed my 7D requires more sharpening as well. For example, when imported into DPP and the default sharpening is 3 and go to 5 and it is sharp. At 3 and would describe it as a "soft" sharp.
 
isn't this just the way it is? I mean, left on Neutral or Faithful, there will be no sharpening. I think we've had discussion before that the rebel series always added SOMETHING in the way of sharpening.

but, once turned up a tiny bit, they seem to look fine.
 
Might it be that with all te pixels that shaprening is jsut that much more effective? My rebel with all 6MP never seemed benefit from sharpening, so I never perfomed shaprening. But with the 7D, sharpening really makes a difference. So I am think that you are are sharpening more because...welll...you can. Much like I am looking at my images at 200% because i can see more detail at 200%, where with the 6MP, the pixels became bricks really fast.
 
Raw. Always raw. On the rebel raw conversion was done using Apple's converter (I use Aperture) and I'd usually give a little of what Aperture calls "definition" plus a light bit of edge sharpening. Apple's raw converter doesn't support the 7D, yet, so I'm shooting raw+jpeg on the 7D. I noticed even the jpegs needed a bit more definition than I used with the Rebel. Yeah, I know that comparison is meaningless as it is comparing images processed in camera to images processed by Aperture.
 
balloonchasers said:
Not sure what you are talking about when you mention Apple....
Click to expand...
Apple supports various raw formats at the OS level. The finder displays thumbnails, the generic picture viewer displays (and allows simplistic edits) to raw images, and Apples iPhoto application can display and edit raw images. Aperture uses the same OS functions to display raw images. As new cameras come out Apple updates their raw converter OS modules (eventually) and all applications then support the new format.

No, I never bothered using DPP on a Rebel Xt raw image. Let me do so right now...

How about that... softer than what I expected (but not quite as soft as the 7D). It looks like the Apple raw converter applies some default sharpening. When I compare the same image at 100% side-by-side the DPP image is not quite as sharp as the Aperture "master" image.
 
Make sure you are using the same picture style with DPP when comparing your 7D images to your XT images. DPP does use the picture style for an initial point when you open your images. You can change the settings as you like once you open the file. I never really spent much time comparing my 300D RAW files to my 30D RAW files. I just figured out how to get the best out of each camera with DPP.

Enjoy your new camera!!!

John
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Feel free to use any of these additional letters to correct the spelling of words found in the above post: a-e-t-n-d-i-o-s-m-l-u-y-h-c If you find any extra letters, please place them here for future use...
 
I never thought of doing this. It sure makes it easier to evaluate the ruler.

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I have made my decision. Don't confuse me with the facts.
 
When you adjust the sharpening values in the Picture Styles menu the JPG photos come out relatively sharper in accordance with the value set.

Does the same setting affect RAW files?
 
As far as in camera sharpening on xxDs, what do you feel confortable with and have best results overall? I do realize it's a mater of personal preference.
thanks
--
Chris
jrarsenault said:
I've noticed a big sharpness difference between my 7D and xxD cameras. I've applied DPP sharpening to my photos and noticed a dramatic difference.

I've also noticed in-camera sharpening to make a big difference too. If the camera is left at zero sharpening the pictures are quite soft. I've seen that a little increase in sharpening produces a dramatic effect.
Marco S Hyman said:
I'm still learning about my 7D. One of the things I've learned is that the images need post processing sharpening, much more so than with my Rebel Xt. Perhaps this is due to the larger resolution. Or perhaps it's because Apple sharpens RAW images more than DPP. I never used DPP with the Rebel.

Anyway, this is a screen capture of a DPP 100% crop before (above) and after (below) applying a sharpening value of 5.
Click to expand...
jrarsenault said:
What a difference. I'll be curious to see if I have to give some extra sharpening once Apple releases raw support for the 7D.

The Lens, BTW, is an EF 24-70 f/2.8L wide open at 70 mm. Distance to target was about 6 feet.

My education continues.
Click to expand...
Click to expand...
--
Chris
 
Chris DeVeau said:
Does the same setting affect RAW files?
Click to expand...
Yes but they are not permament like with jpeg files. You can set your picture style to monochrome take a pic and open the RAW file in DPP and select another picture style and the color comes right back. Try that with a jpeg and you will be disappointed!
Chris DeVeau said:
As far as in camera sharpening on xxDs, what do you feel confortable with and > have best results overall?
Click to expand...
I usually set my sharpening to 3 while taking the pictures and then when I process the images in DPP I move it up to 5-7. Recently I noticed that DPP was applying a Luminace Noise Reduction of 2 on all of my images. I am now lowering that setting to 0 and finding that a sharpening of 5 is usually more than enough.

30D camera taking portraits... your mileage may vary.

John

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Feel free to use any of these additional letters to correct the spelling of words found in the above post: a-e-t-n-d-i-o-s-m-l-u-y-h-c If you find any extra letters, please place them here for future use...
 
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