Viewing lens correction data on raw file 7D2

LCPete

LCPete

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should I be able to see what lens correction micro adjustment I have set for the lens
when viewing a shot (raw file) I have taken looking at the shot on the card in the camera?
Also is it possible to view this on Canon DPP program I can't seem to find it anywhere when looking at a RAw on DPP
It just says : lens correction data none
I did read on web that you should be able to see this by pressing info while viewing a shot in camera
Also I tried looking at a raw in canon raw converter DDP and couldn't find it there either

What happened is that I had a series of shots that missed focus and was trying to figure out what happened

To complicate things I did notice that I didn't have the 2.0 converter properly engaged into the camera body yesterday that may well have caused the misfocusing but I would have thought that the shutter wouldn't work if the lens wasn't on properly

My kit is a 7D2 with 300 2.8 and 1.4 and 2.0 converters
I've had the 7D2 since it came out and have been getting brilliant results up to yesterday

I set up the micro adjustments calibration when I got the camera and ended up on a setting of +7
When I checked yesterday the setting for the 300 2.8 and 2.0 converter combination was on zero I'm sure it should have been on +7 I must have changed it by mistake and not realised
Anyway all is good now I've rechecked and set up the calibration again but wanted out of interest if it was possible to check back on old raw files and see what the calibration settings were
 
Last edited:
LCPete said:
should I be able to see what lens correction micro adjustment I have set for the lens
Click to expand...
Sure! just compare two files — prior and post— micro
adjustments
LCPete said:
when viewing a shot (raw file) I have taken looking at the shot on the card in the camera?
Click to expand...
I don't understand this, could you reformulate?
LCPete said:
When I checked yesterday the setting for the 300 2.8 and 2.0 converter combination was on zero I'm sure it should have been on +7 I must have changed it by mistake and not realised
Click to expand...
The micro adjustments performed were to "synchronize"
the AF system with the projection on the chip, and did
not affect the lens in any way… did you save the +7 value
of that combo before leaving the function?

•
Some lens makers create "lens profiles" for their gear.
These files are made for given specific app like conver-
ters among others.

With the converter up and lenses profiles installed, The
app will recognize am imported file and will apply the ne-
pessary corrections automatically. These, however, have
nothing to do with focus in any way.
 
LCPete said:
I set up the micro adjustments calibration when I got the camera and ended up on a setting of +7
When I checked yesterday the setting for the 300 2.8 and 2.0 converter combination was on zero I'm sure it should have been on +7 I must have changed it by mistake and not realised
Click to expand...
Depending on how you've done it, the adjustments might be global or lens-specific. If they're global, then once you've set +7 it should be the same for all lenses. But if it's lens-specific, it needs to be set separately for the lens on its own, lens+1.4x, and lens+2x. Is that what you did?
 
Kodiak Qc said:
Sure! just compare two files — prior and post— micro
adjustments

I don't understand this, could you reformulate?

The micro adjustments performed were to "synchronize"
the AF system with the projection on the chip, and did
not affect the lens in any way… did you save the +7 value
of that combo before leaving the function?

•
Some lens makers create "lens profiles" for their gear.
These files are made for given specific app like conver-
ters among others.

With the converter up and lenses profiles installed, The
app will recognize am imported file and will apply the ne-
pessary corrections automatically. These, however, have
nothing to do with focus in any way.
Click to expand...
Sorry I didn't explain myself very well what I should have said was how do I look at the lens correction data on a raw file
I couldn't find it on DPP but I've just realised that my version of the program must be out of date as when I looked at the image files they were greyed out
I need to update it to the latest version
I never use it normally tho I use adobe cs

I tried putting the card with the raw files on back in the camera and looking at the shot information but couldn't see the correction data
I did save the corrections when I did the focus micro adjustments for the lens and converter combinations
Thanks :)
 
Last edited:
StewartR said:
Depending on how you've done it, the adjustments might be global or lens-specific. If they're global, then once you've set +7 it should be the same for all lenses. But if it's lens-specific, it needs to be set separately for the lens on its own, lens+1.4x, and lens+2x. Is that what you did?
Click to expand...
Yes I did it lens specific :)
Yes and also did it for each combination of lens and converter
 
Last edited:
LCPete said:
Sorry I didn't explain myself very well…
Click to expand...

… knowing my level of English, I could
very well have misunderstood you! :oops: :$
 
[QUOTE="StewartR, post: 7906216, member: 3821"it needs to be set separately for the lens on its own, lens+1.4x, and lens+2x. Is that what you did?[/QUOTE]
Can you do that for a single lens, I thought it was one entry for one lens as it uses the serial number of the lens in question.
Matt
 
Kodiak Qc said:
Sure! just compare two files — prior and post— micro
adjustments

I don't understand this, could you reformulate?

The micro adjustments performed were to "synchronize"
the AF system with the projection on the chip, and did
not affect the lens in any way… did you save the +7 value
of that combo before leaving the function?

•
Some lens makers create "lens profiles" for their gear.
These files are made for given specific app like conver-
ters among others.

With the converter up and lenses profiles installed, The
app will recognize am imported file and will apply the ne-
pessary corrections automatically. These, however, have
nothing to do with focus in any way.
Click to expand...

StewartR said:
Depending on how you've done it, the adjustments might be global or lens-specific. If they're global, then once you've set +7 it should be the same for all lenses. But if it's lens-specific, it needs to be set separately for the lens on its own, lens+1.4x, and lens+2x. Is that what you did?
Click to expand...
I think part of my problem is that I don't use the 2.0 converter very often which makes it difficult for me to see when something is not right
I'm off on Tuesday and will go back and take a lot of shots with all three combinations. Lens on it's own and with 1.4 and 2.0 converters to make sure that everything is ok now
Thanks again for the help :)
 
Last edited:
MatBin said:
[QUOTE="StewartR, post: 7906216, member: 3821"it needs to be set separately for the lens on its own, lens+1.4x, and lens+2x. Is that what you did?
Click to expand...
Can you do that for a single lens, I thought it was one entry for one lens as it uses the serial number of the lens in question.
Matt[/QUOTE]
Apparently you can :-) Just tried it on my 100/400 on its own and with TC and could register each separately.
Matt
 
MatBin said:
Can you do that for a single lens, I thought it was one entry for one lens as it uses the serial number of the lens in question.
Matt
Click to expand...
MatBin said:
Apparently you can :) Just tried it on my 100/400 on its own and with TC and could register each separately.
Matt
Click to expand...
Glad to see that!

I've never actually done it myself, but the official Canon guidebook to AF Microadjustment is very clear (bottom of page 13) that you can.

http://m.learn.usa.canon.com/app/pdfs/articles/AF_MicroAdjustGuide_desktop.pdf
 
Most cameras do write the AFMA setting into the exif, but a lot of exif readers may not read/display that line (for Nikon it is recorded in the "makers notes" proprietary exif). If it is recorded, you should be able to find/read it using ExifTool, but it's not particularly user friendly.
 
Last edited:
sk66 said:
Most cameras do write the AFMA setting into the exif, but a lot of exif readers may not read/display that line (for Nikon it is recorded in the "makers notes" proprietary exif). If it is recorded, you should be able to find/read it using ExifTool, but it's not particularly user friendly.
Click to expand...
Thanks it does look like it's not as straightforward as I thought
I'll have a look at exiftool though :)
 
LCPete said:
should I be able to see what lens correction micro adjustment I have set for the lens
when viewing a shot (raw file) I have taken looking at the shot on the card in the camera?
Also is it possible to view this on Canon DPP program I can't seem to find it anywhere when looking at a RAw on DPP
It just says : lens correction data none
I did read on web that you should be able to see this by pressing info while viewing a shot in camera
Also I tried looking at a raw in canon raw converter DDP and couldn't find it there either

What happened is that I had a series of shots that missed focus and was trying to figure out what happened

To complicate things I did notice that I didn't have the 2.0 converter properly engaged into the camera body yesterday that may well have caused the misfocusing but I would have thought that the shutter wouldn't work if the lens wasn't on properly

My kit is a 7D2 with 300 2.8 and 1.4 and 2.0 converters
I've had the 7D2 since it came out and have been getting brilliant results up to yesterday

I set up the micro adjustments calibration when I got the camera and ended up on a setting of +7
When I checked yesterday the setting for the 300 2.8 and 2.0 converter combination was on zero I'm sure it should have been on +7 I must have changed it by mistake and not realised
Anyway all is good now I've rechecked and set up the calibration again but wanted out of interest if it was possible to check back on old raw files and see what the calibration settings were
Click to expand...

Press info a couple of time till you see a thumbnail & Histogram, scroll down using the multi controller (joystick) it will show shooting info including any AF micro-adjustments.

In DPP click view then info, this will also show all shooting info.
 
jm2 said:
Press info a couple of time till you see a thumbnail & Histogram, scroll down using the multi controller (joystick) it will show shooting info including any AF micro-adjustments.

In DPP click view then info, this will also show all shooting info.
Click to expand...

Thanks:) I think there's something not quite right going on as the lens correction is set to +7 with the 7D 2 and 300 2.8 with 2.0 converter and when I look at a photo I have taken and look at the info as you described it says lens correction data none
When I get a chance I'll download the newest version of DPP and have a look
 
Ahh I see thanks that explains it:)
I thought something was wrong with the camera
I fired off a few test shots today all seems good I'm going back out to the zoo on Tuesday and will try again
 
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