Messages

I intended to use a lua script for non-cpu lens information from http://www.magiclantern.fm/forum/index.php?topic=18083 but understood that this would require some minor adjustments in the lua core. Would it be possible to merge these fixes into the next beta (and even coming nightly) for the 100D?

Reminder: http://www.magiclantern.fm/forum/index.php?topic=9673.0

Posted a series of temperature test data in the corresponding forum thread
http://www.magiclantern.fm/forum/index.php?topic=9673.msg178872#msg178872

@escho
Here is data from 100D/SL1 w/ ML Beta-4a (magiclantern-Nightly.2016Oct05.100D101)
Tried to cool down the cam in the fridge for about an hour. First shot is therefor with lower temp, looks strange in RAW.
I took a picture in LV mode about every minute and tried to keep the cam busy with focusing in between.

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Time    RAW ExifC
0 143 15
1 144 24
2 146 26
3 150 30
4 150 32
5 155 35
6 156 36
7 156 39
8 159 41
9 164 42
10 164 44
11 164 45
12 164 47
13 166 47
14 165 48
15 172 49
16 172 50
17 173 51
18 173 52
19 172 53
20 174 53
21 174 54
22 171 55
23 176 55
24 176 56
25 175 56
26 180 57
27 180 57
28 178 58
29 178 59
30 181 59
31 178 60



Now working with magiclantern-manual_lens_info.2017Jan11.60D111

@dfort:
I followed your advise and tweaked a user own lens profile by setting "stCamera:Lens" to the exact same value as "aux:Lens" comes with in xmp. And it works fine! Lr chooses my own profile automatically! Thanks! (I tweaked also "stCamera:ProfileName" to "...BS" instead of "CS" just to see which profile was picked).

https://www.flickr.com/photos/147593195@N03/shares/8815Cp

Also the aperture value is shown correctly. I can't reproduce the original artifact which is strange. Consider it solved.

Unfortunately the focal length is still the wrong one! Lr switches to 50mm, no matter what!
https://www.flickr.com/photos/147593195@N03/shares/r9nXi7

I will continue investigating from here.

Tested the latest experimental magiclantern-manual_lens_info.2017Jan09.60D111 and added the following lens definition to lens.lua (taken from dforts script, but altered manual_aperture from 3.5 to 5.6).

{ name = "Samyang 8mm f/3.5 UMC Fish-Eye CS",    focal_length =   8, manual_aperture = 5.6 },

Corresponding xmp (part):

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<rdf:Description rdf:about=""
    xmlns:exif="http://ns.adobe.com/exif/1.0/"
    xmlns:aux="http://ns.adobe.com/exif/1.0/aux/"
    exif:ExifVersion="0230"
        aux:Lens="Samyang 8mm f/3.5 UMC Fish-Eye "
    exif:FocalLength="8/1"
    exif:FNumber="49/10"
>


Some findings:

1: In XMP aux:Lens seems to be cut after a certain number of chars.

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aux:Lens="Samyang 8mm f/3.5 UMC Fish-Eye "
"CS" is missing at the end of the string.

I understood from dforts investigations in Adobe's forum that there is a general issue in automatically identifying Samyang lens profiles. But could it be of help to have the full lens name in the string as Adobes profile definition is working with the following parameters:

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       stCamera:Make="Canon"
       stCamera:CameraRawProfile="True"
       stCamera:Lens="8mm f/3.5"
       stCamera:CameraPrettyName="Canon"
       stCamera:LensPrettyName="Samyang 8mm f/3.5 UMC Fish-Eye CS"
       stCamera:ProfileName="Adobe (Samyang 8mm f/3.5 UMC Fish-Eye CS, Canon)"

2: I chose a manual aperture 5.6 and was expecting "exif:Fnumber = 56/10" but in XMP it is "49/10".  Any hint why?
When setting manual_aperture = 3.5  exif:Fnumber is "35/10".

3: Import to Lr6 brings another issue: Focal lenght is 50mm instead of 8mm, whereas aperture is shown as f/4.9
In xmp I altered exif:FocalLength manually to different values != 50mm, for test reasons. But Lr did not except anything and set it back to standard value 50mm.  The  lens profile was not recognized. Does this cause a dummy focal length?

@garry23

Could an alternative be to always test if a manual lens is flagged via event.post_shoot: which would always create an xmp after an image has been taken?

Sounds like a good idea! I am about to test magiclantern-manual_lens_info.2017Jan08.60D111 . When shooting a burst of several pics only the last picture taken produces an xmp sidecar file. One xmp for each picture would be preferable!

Passed some test with new version for firmware 1.0.1 and it looks really good. See below:

Modules
ETTR: OK
Dual ISO: OK

Exposure
Auto ETTR: OK
Exposure overwrite in photo mode for AV / TV: OK

Overlay
Global Draw, ON, all modes: OK
Zebras, RAW RGB: OK
Focus Peak: OK
Crop marks: OK
Spot meter: OK
Histogram: OK
Waveform: OK
Vectorscope: OK

Shoot
Advanced Bracket: OK
Intervallometer: OK
Bulb Timer: OK
LCDsensor Remote: OK
Audio RemoteShot: OK
Motion Detect: OK

Focus:
Follow focus: OK
Rack focus: OK
Stack focus: OK
DOF info in LiveView: OK
Focus patterns: OK

@cubalibre0975: Did you try to uninstall ML by running the firmware upgrade again and just waiting for 60 sec.? This to figure out whether the problem is ML related or not.

Focus Stacking
Tested with all different CFn6 settings and it works perfectly now! --> OK

A similar hack would be recommended for LiveView/Continuous AF. If one forgets to disable it you will have the same symptoms of focus hunting just before the next picture is to be taken.

Just found a little side effect: Focus stacking starts even in photo mode but changes to LiveView after the first picture taken. Same behavior on the 60D so I guess this is as designed.

Rack Focus --> not sure?
In principle the focus behaves as expected according to the chosen focus parameters (Focus End Point, Step Size - all good).
When starting RECORDING first (using LV button or LCD sensor) Rack focus can be initiated pressing PLAY or using the LCD sensor again (nice, no camera shake). Any further start delay is not taking place (probably not needed, when initiating rack focus manually in recording mode).

But when following instructions from http://www.magiclantern.fm/forum/index.php?topic=11269.msg109589#msg109589 I was expecting to start recording a short sequence from the Focus Menu -> Rack Focus just by pressing PLAY from there.
I get the message: Rack Focus REC started. After the chosen delay focus is shifting as defined, then another delay count down ending with the message movie_end:not recording and nothing is saved on the SD card.

Did I get it totally wrong?

@bbop: good work. Can it be so easy! Just switched focus to one back button (*) and Stack Focus works fine!
I tested all options in Cfn6 menu. One really has to see to that focusing is disabled on the shutter button, means: 
Cfn6 = 0 (AF/AE lock) and Cfn6 = 2 (AF/AF lock, no AE lock) --> not OK
Cfn6 = 1 (AE lock/AF) and Cfn6 = 3 (AE/AF, no AE lock) --> OK
Tested even the different AF modes and all work the same way.

I'd suggest to activate Stack Focus again but put out a yellow warning message (Set AF to back btn (*)... the same way it is shown for Follow Focus)

Focus Patterns
just tested  including shortcut keys - works perfectly! THANKS! --> OK

Focus Stacking:
I toke different series of macro pics on a tripod and the result is just - NOT OK
The good news is that ML initiates the AF motor to take the right number of steps before and after the defined focus area. Also the number of pictures to be stacked is correct.
The bad news is that Canon's own AF function takes over just before making the next picture. Means although the AF motor toke the correct number of steps it just jumps back to the original position (by refocusing) and you get a series of identical pictures.
To be really sure I chose a pretty wide stepping distance between 2 pictures and I could follow the AF to refocus by watching the distance scale on my lens jumping back and forth.
I tried all the different AF modes in LiveView, making sure that Continues AF is disabled, finally choosing QuickFocus with just Center AF point for initial focusing. But the outcome was the same for all tests.
A quick comparison with the latest ML on my 60D and there it works like a charm.

Remaining focus functions:
Is there any possibility to activate Focus Patterns w/ shortcut keys on the 100D. I find it extremely useful on my 60D. Also Trap Focus would be really helpful having it in this tiny cam body. But I understood that the later can be mission impossible?

Tx a lot for all your efforts!!

Trap Focus:
Hold AF Button: AF points flashing when object comes into focus but no picture taken. Same for Trap Focus / Countinous. No picture taken. -- NOT OK

Follow Focus:
Arrow Keys work just fine (nice combination w/ focus peaking). LCD sensor seems to work too (a bit hard to control the outcome) OK

DOF Settings:
Works perfectly in LiveView (simple/diffraction aware). Compared the results with HyperFocal Pro App. Just fine! OK

Since I am more into still pictures I hope that one of you movie guys can take over for rack focus