November 27, 2014, 09:43:58 AM

Author Topic: EOS-M sharper than 6D?  (Read 11293 times)

infared

  • 1D Mark IV
  • ******
  • Posts: 986
  • Kodak Brownie!
    • View Profile
Re: EOS-M sharper than 6D?
« Reply #45 on: July 18, 2013, 02:10:31 PM »
Time to stop testing and start calling Canon Service...
+1....everything is really soft!
5D Mark III, Canon 15mm f/2.8 Fisheye, Canon 17mm f/4L TS-E, Canon 16-35mm f/4L IS, 21mm f/2.8 Zeiss, Sigma 35mm f/1.4, 24-70mm f/2.8 II, 50mm f/1.4 Sigma Art, 85mm f/1.2L, 100mm f/2.8L Macro,70-200mm f/2.8L IS II...1.4x converter III, and some other stuff.....

canon rumors FORUM

Re: EOS-M sharper than 6D?
« Reply #45 on: July 18, 2013, 02:10:31 PM »

mb66energy

  • Canon 6D
  • *****
  • Posts: 408
    • View Profile
Re: EOS-M sharper than 6D?
« Reply #46 on: July 18, 2013, 02:10:44 PM »
(1) I had the problem of subtle sharpness variations between shots with 40D and the 2.0/100 @ f/4 or f/5.6 where that lens is very sharp and contrasty.

(2) My S95 images had better visual sharpness than a lot of 40D-photos but they were unnaturally sharpened.

Following parameters are important:

(1) There is a sharpness setting in the tool box (third tab) which I cannot influence by the menu settings of the camera. I do it in DPP. Setting noise reduction to zero gives the above mentioned pixel level sharpness.
Usually I use zero noise reduction to keep images crisp.

(2) DPP uses different sharpening algorithms for both the S95 and the 40D:
     DPP uses "Unsharp Mask" with S95 files which gives aggresive sharpening (for me: unnatural)
     DPP uses "Sharpening" with 40D files which is "less sharp" but keeps transitions/edges more natural(IMO).
So I use sharpness, typically the value "3", sometimes 4 or 5

Below two commented screenshots according to (1) and (2) from DPP (great I see that I use the english version of DPP so no translation necessary!):
TOOLS: EF-S 10-22 | 60 || EF 2.8/24 | 2.8/40* | 2.8 100 Macro* |2.0/100 | 4.0/70-200* | 5.6/400* || 2 x 40D | 600D | EOS M  [* most used lenses]

ND40

  • Power Shot G7X
  • **
  • Posts: 19
    • View Profile
Re: EOS-M sharper than 6D?
« Reply #47 on: July 18, 2013, 03:15:20 PM »
(1) I had the problem of subtle sharpness variations between shots with 40D and the 2.0/100 @ f/4 or f/5.6 where that lens is very sharp and contrasty.

I found this menu after some poking around in DPP (I have never used it very much - LR4 is what I use for pp).  The settings for (1) were zero for noise reduction.  The setting for (2) was also zero, but I was unable to change the setting.

Thanks for the suggestion.  I entered a repair ticket with Canon service this afternoon and will be sending the camera for them to look at.
« Last Edit: July 18, 2013, 05:46:32 PM by ND40 »

tpatana

  • Canon 70D
  • ****
  • Posts: 260
    • View Profile
Re: EOS-M sharper than 6D?
« Reply #48 on: July 18, 2013, 07:41:10 PM »

I'm also leaning towards the fact that your camera is busted, and needs some TLC at service center.

Some reason it seems there's nothing in focus in your pictures.

Could you try one test, use the 70-200/2.8 at 2.8, and go low on the grass. Angle camera almost horizontal, slightly down. Grass should fill most of the view, maybe some sky on top. Focus some 2m/6ft distance. Is there certain spot on the grass that looks sharp? Manual focus is ok for this, just dial ~2m/6ft and you're good.

If that doesn't get any grass to be focus, then it's not focusing issue, but something is really wrong.

One really far fetched guess, maybe at DPP there's some setting it'll apply for 6D photos, unknowingly for you. If you share one of the live-view shot RAW-files, me (or someone else here) could check it and make sure it's not DPP. I'm 99% sure it's not that, but there's always that 1%.

ND40

  • Power Shot G7X
  • **
  • Posts: 19
    • View Profile
Re: EOS-M sharper than 6D?
« Reply #49 on: July 20, 2013, 08:02:30 AM »

I'm also leaning towards the fact that your camera is busted, and needs some TLC at service center.

Some reason it seems there's nothing in focus in your pictures.

Could you try one test, use the 70-200/2.8 at 2.8, and go low on the grass. Angle camera almost horizontal, slightly down. Grass should fill most of the view, maybe some sky on top. Focus some 2m/6ft distance. Is there certain spot on the grass that looks sharp? Manual focus is ok for this, just dial ~2m/6ft and you're good.

If that doesn't get any grass to be focus, then it's not focusing issue, but something is really wrong.

One really far fetched guess, maybe at DPP there's some setting it'll apply for 6D photos, unknowingly for you. If you share one of the live-view shot RAW-files, me (or someone else here) could check it and make sure it's not DPP. I'm 99% sure it's not that, but there's always that 1%.

Thanks for the offer.  RAW files are huge, how could I share one?

danski0224

  • Canon 7D MK II
  • *****
  • Posts: 564
    • View Profile
    • Some of my Work in Progress
Re: EOS-M sharper than 6D?
« Reply #50 on: July 20, 2013, 12:23:17 PM »

Thanks for the offer.  RAW files are huge, how could I share one?

Dropbox, Transfer Big Files are two free ways to move large files.
Some of my Work in Progress..... www.dftimages.com

ND40

  • Power Shot G7X
  • **
  • Posts: 19
    • View Profile
Re: EOS-M sharper than 6D?
« Reply #51 on: August 16, 2013, 05:59:13 PM »
8/16/13 Follow-up

I just received my 6D back from Canon Service.  They said they repaired the autofocus system and some electrical issues.

The sharpness problem is solved!  Here are side-by-side comparisons of the same subject before (top) and after (bottom) the service work.  The lighting is somewhat different, but the sharpness difference is clear.

* EF 70-200 2.8 II lens
* shot in RAW processed in DPP as a batch with all default settings.  100% crops of JPG
* cameras mounted on tripod, wireless remote trigger
* 6D: Av, 160mm, f4.5, ISO 250 autofocus

I also did a few shots to compare with my EOS-M and the 6D and the results were what I would expect:  the 6D is slightly sharper than the M with the same lens in bright daylight and noticeably sharper in poor light (ISO 800 on the M, 1250 on the 6D).

canon rumors FORUM

Re: EOS-M sharper than 6D?
« Reply #51 on: August 16, 2013, 05:59:13 PM »

neuroanatomist

  • CR GEEK
  • **********
  • Posts: 14972
    • View Profile
Re: EOS-M sharper than 6D?
« Reply #52 on: August 16, 2013, 09:22:23 PM »
The storm has passed, and once again, all is right with the world.





...or at least, with your cameras.  Glad you got your issue sorted!
EOS 1D X, EOS M, and lots of lenses
______________________________
Flickr | TDP Profile/Gear List

bholliman

  • 1D Mark IV
  • ******
  • Posts: 779
    • View Profile
Re: EOS-M sharper than 6D?
« Reply #53 on: August 16, 2013, 09:44:43 PM »
Glad to hear Canon service was able to take care of the problem!
Bodies:  6D, EOS-M
EF Lenses: 35mm f/2.0 IS, 100mm f/2.8L IS Macro, 135mm f/2.0L, 16-35mm f/4L IS, 24-70mm f/2.8L II, 70-200mm f/2.8L IS II; EF-M Lenses: 22 f/2, 18-55
Speedlites: ST-E3-RT, 600EX-RT (x3)

canon rumors FORUM

Re: EOS-M sharper than 6D?
« Reply #53 on: August 16, 2013, 09:44:43 PM »