Messages

1

Camera-specific Development / Re: Canon 70D (Alpha5b 23rd April)

« on: May 07, 2015, 01:49:44 AM »

@nikfreak

I downloaded the latest Adobe DNG converter and converted a couple of my normal CR2 files.  They did not have the same issue.

2

Camera-specific Development / Re: Canon 70D (Alpha5b 23rd April)

« on: May 05, 2015, 02:14:11 AM »

Here is a file I'm having a problem with.  Maybe it will help if someone else can take a look at it can see if they can duplicate.

Here is the dual iso CR2.
https://www.dropbox.com/s/s6ukqbs0moswhy7/IMG_3775.CR2?dl=0

Here is the converted DNG.
https://www.dropbox.com/s/zb3qtu1yy963zg5/IMG_3775.DNG?dl=0


I found that I have Camera Raw 7 on my laptop and 9 on my desktop, so here are the resulting jpg file with each...

Here is a jpg file converted with Camera Raw 9 with Exposure-2.  The sky is so blown out I can't get any detail in it even by lowering the exposure.
https://www.dropbox.com/s/zl0hp51szgnpkgc/IMG_3775_cr9.jpg?dl=0

Here is a jpg file converted with Camera Raw 7 with shadows +100  The sky is nice, and the shadows can be lifted to show ground detail.
https://www.dropbox.com/s/k8lbrzvxxr67dfw/IMG_3775_cr7.jpg?dl=0

3

Camera-specific Development / Re: Canon 70D (Alpha5b 23rd April)

« on: May 04, 2015, 10:35:52 PM »

@Winfel

I don't use lightroom, just PS with camera raw.  I tried it at work (older version of camera raw and on a mac) and the file opened fine.   The 70d shot looked just like the M shot with nice clean shadows and the same detailed highlights. 

I then updated camera raw on that computer and sure enough 70d shot's default exposure is now about 2.5 stops too high.  The eos m shot remains the same even though it was also created with the same cr2hdr as the 70d. 

Since the DNG seems to be ok I'm not as worried now about loosing the highlight detail.  I will just need to lower the exposure a couple stops before I start doing other edits and it should be fine.  Still I wonder what makes the 70D dual iso DNG files act differently in the latest camera raw and lightroom...

4

Camera-specific Development / Re: Canon 70D (Alpha5b 23rd April)

« on: May 03, 2015, 02:44:50 PM »

@DeafEyeJedi -> I'm using the the cr2hdr.exe compatible with 70D for Windows from the first page. 

Here is a zip with my M/70D test shots and converted DNGs if someone wants to take a look.  I wanted to post it before but it my upload speed is not great so it had to wait.


https://www.dropbox.com/s/51t5vbbuvw3dt3i/DUAL%20ISO%20TEST.zip?dl=0

5

Camera-specific Development / Re: Canon 70D (Alpha5b 23rd April)

« on: May 03, 2015, 06:13:26 AM »

I've been trying out the dual_iso (Apr23 70D111B) and the windows Cr2hdr from the 1st page and I'm not sure its working correctly.

My understanding/experience with dual ISO on my EOS M is that a dual iso image should be look like a lower ISO image but with extra latitude to raise the exposure and/or lift the shadows without them being too noisy.  However my 70D converted DNGs are all coming out over exposed and look exactly like the higher ISO image.  I don't think they are being either recorded or converted correctly.  I think winfel reported a similar problem a few pages ago.

To demonstrate I took a series of shots with my eos M and 70d at 100,800, and dual 100/800.  I used the same lens and settings with only the ISO changing and this is with no changes to exposure or shadows... right to JPG and then combined.

https://dl.dropboxusercontent.com/u/38489413/70d.jpg
https://dl.dropboxusercontent.com/u/38489413/m.jpg

Anyone else notice something similar?