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Messages - Marsu42

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1951
EOS Bodies - For Stills / Re: 6D af tracking: experiences & usage cases
« on: November 06, 2013, 01:26:37 AM »
Your best bet is to use the center AF point and use focus priority on the first shot in the AI Servo settings.

I am doing the same by now, and it works ok unless of course a non-cross point fails to focus in flat low-contrast surfaces ... the most important setting is "focus priority" since with the low fps of the 6d you are guaranteed to get mostly oof shots otherwise.

Coming from a TI1/500D, the 6D AF is a lot faster.

Oh my, now that's high praise indeed for the €1500 6d af :->

1952
EOS Bodies / Re: Wait for the Canon 5D Mark IV or get the Mark III?
« on: November 05, 2013, 11:38:09 AM »
Is there a website that I can watch for updates or news or any of that sort of thing regarding ML?
They have got a nice forum: http://www.magiclantern.fm/forum ... look in the "new ports" section for updates on your camera, generally you will want to use the nightly releases since they include the latest features/fixes and are probably more stable than anything else.

1953
Will the 6D require somewhat more skill and planning to get the shots you want compared to a 5D MKIII?  Yes.

You're talking of focus & recompose skill with thin dof, I guess?

One thing I'm experiencing with my 100L and the 6D and I have "learned" to circumvent by taking more frames is that the 6D sometimes produces actual af misses, i.e. the focus is completely elsewhere even though the camera did an af confirm (red dot) - I practically never experience this with my 6d af, though the 60d more often has "micro misses" while the 6d is either spot-on or lost in the woods.

1954
EOS Bodies / Re: Wait for the Canon 5D Mark IV or get the Mark III?
« on: November 05, 2013, 02:05:14 AM »
Is there a general period of time that passes before it comes out of the Alpha stage?

No, because alpha/beta/final is rather subjective or depending on the project type and reputation. The main "issue" making the 5d3 port "alpha" is that there are some features missing in comparison to the unified ml for the digic4 cameras. Also a couple of years ago ml was considered a "hack" to it was easy to use lower standards, but now the expectations are higher and thus the reluctancy on ML's side.

As for stability the dev working on this (Alex Dumitrache) is very concerned about it, so it will take quite a while for this to get the "final" label, it's a bit like 0.x->1.x version numbers in the OSS world. Also "final" implies that it won't crash, never, ever, and this is a bold statement given the very limited number of people testing all features and actually returning useful bug reports - for for the time being it seems 5d3/6d will keep being "alpha" with everybody using them anyway. Just don't use ML "nightly" released for weddings and such...

1955
Macro / Re: How Am I Moving Along With Macro?
« on: November 04, 2013, 05:27:08 AM »
http://www.flickr.com/photos/swiftrandomness94/sets/72157634336619720/
Nice spiders in the web and applause for these w/o a dedicated macro lens. I did nearly the same thing a while ago, though with tripod since the spiders are very static in their nets and you get deeper dof - and if you'd like feedback: I think you missed focus a bit on them (or the dof is too thin) since the eyes appear to be just oof.

I either shoot handheld or with my monopod.
I also shoot eiher tripod or handheld, I doubt it if monopod makes an improvement as it adds bulk - if handheld better take more frames and trash the shaky ones.

i don´t like a ringflash for macros and i think they are not needed.
a flash bracket with and EX580 + softbox is what i use.
Same over here, better increase the working distance than use a ring flash with the flat look.

I'm using a Demb bracket, a small ballhead and a cheap, small octagon softbox from ebay/China to make specular highlights nicer than bare flash. Any bracket will do nicely that reaches to the front, there are also "telescope"-like brackets that neuroanatomist keeps recomending (you can search for this posts on this if he doesn't reply here anyway :-p).

1956
I haven't heard about any quirks related to the center AF point, which is supposed to be very good.
The quirk is that for f2.8 lenses the center point _is_not_cross_ to begin with, I just wrote the explanation (again) here: http://www.canonrumors.com/forum/index.php?topic=17409.msg331167#msg331167

A bit of an exaggeration...  I often use the outer focal points on my 6D.  Yes, the center point is much better, but the outer points are not bad in decent light.  I can nail shallow DOF with the outer points.
Exactly - "can", but not reliably so. I also use the outer points for static subjects to avoid focus shift when recomposing, but I want to be more sure that I end up in focus I use center only. On anything that moves the outer points are near useless though since they are not cross, at least in my experience with the 6d.

MF could be a better option. Is there any advantage using the viewfinder with a dedicated focusing screen over the live view?
No, not if you're using Magic Lantern which has "focus peaking" in live view and shows you _exactly_ what's in focus, I use it all the time for macro, couldn't do without it.

As for the Eg-S screen (though: I'm using the Eg-D with a grid to improve my verticals :-p): It's near-essential for mf with fast lenses, but as far as I've researched it don't expect wonders from it either and it does darken the screen for slower lenses - so you probably have to try for yourself. The option to use Canon screens (and not expensive 3rd party) and quickly exchange them is one of the few advantages of the 6d over the 5d3 though.

Here's a (shaky) demonstration of focus peaking, it's easier to see if you set the lv to black & white as the color dots become more apparent:
Peak Focus (Magic Lantern) on a Canon T3i

1957
EOS Bodies / Re: Wait for the Canon 5D Mark IV or get the Mark III?
« on: November 04, 2013, 04:50:18 AM »
I wasn't aware of Magic Lantern (until I just looked at it). I'm curious, is it legit? buggy? In other words, I always worry about third party downloads -- I don't want to mess with my new pristine camera...

Magic Lantern is for me the one reason I keep using Canon, even if Nikon is less expensive and arguably up on par or even "better" these days in a feature-per-dollar comparison. ML is a firmware addon that originated in the video community but has many features for stills shooting. It does have some "killer" features, here's what I use:

* raw histogram and zebras so you see if the shot is really overexposed, Canon histogram is only for jpeg
* auto iso function that also works with flash enabled and has a settable min. aperture in Tv
* helpful overlays in live view like focus peaking so you exactly see what is in focus
* dynamic range boost for up to 14 stops for video & stills for high dynamic range scenes
* up to 60 fps for raw stills for a short time, though at reduced resolution
* focus stacking for macro
* intervalometer for time lapses
* unlimited, automatic bracketing (though your 5d3 already has 7 brackets which should be enough)
* auto-ettr (expose to the right) for optimal exposure (less noise) and clean shadows

... and last not least ...

* 14-bit uncompressed raw video shooting which is a stunning ability for any dslr and makes a big difference for recovering shadows or high dynamic range scenes

Concerning stability: Yes, the 5d3 port is still labeled "alpha", but it's stable as far as there should be no chance to endanger your new camera. The very extreme and also unlikely thing that can potentially happen that the software freezes your camera, which means you simply have to take out the battery and re-insert it, problem solved. After getting to know your general 5d3 you should give it a try if you are the curious kind of person that like to experiment a bit.

Oh, okay. Thanks. I will keep my eyes on it. Can anyone suggest any other good forums to continue to learn more about my new camera? Everyone has been just great here - but I have a feeling I must be taking up "space" since I'm not discussing "rumors" anymore.

On the contrary, the forum title is misleading - the main page is about rumors, but the forum is about photography in general. There are always trashy fun "When will the 7d2 arrive" threads, but actually these rumors make you realize what your current camera does, doesn't and how to work around shortcomings. If you want to discuss technique or your pictures, just add to or open a thread in another subforum like "Canon general", "Lighting" or share your pictures in one of the existing threads.

I found this site very helpful for learning since there are a lot of people with experience and knowledge around who share it, and in contrast to other forums the tone is (nearly :-)) always nice and civil which makes the decisive difference to other forums I have looked at. Plus it's Canon only here, so there's less noise from threads you don't care about unlike in boards that cover all manufacturers.

1958
Then someone had suggested I get the 70D, because it has the best video features of any of the canon DSLR's

No, it hasn't because it doesn't run Magic Lantern (and won't for quite a while) so you cannot shoot raw nor use any of the other ML killer features for video like focus peaking.

So the decisive questions are a) do you want to shoot raw video and b) do you need/want video autofocus?

Will the 70d give me just as good video image quality as my current 5D Mark II? Or should I wait and keep saving up to upgrade to a 5D Mark III?

For video in good to ok light the sensor is nearly meaningless (unless it produces moiré like the 6d), but of course a crop sensor has a different look than ff. If you want a good crop video backup get a 50d if you find one: http://www.magiclantern.fm/forum/index.php?topic=5586.0

The problem with both 60d and 70d is that the sd controller is rather slow so it won't take the high raw data rate - unlike the 7d or 50d with cf cards like your 5d2. If you don't shoot raw and use video manual focus also look at a (used) 60d which should be rather cheap by now.

1959
EOS Bodies / Re: Wait for the Canon 5D Mark IV or get the Mark III?
« on: November 03, 2013, 03:29:59 PM »
FWIW, I have been saving for a DSLR for probably twelve years (seriously). Putting a little away here and there.  I'm a film devote and I never wanted something that would lessen that photography and image quality experience and force me to sit in front of a computer (for me at least, I know others have different opinions). But, I decided to take the leap now, as I desperately need it for work. It's getting embarrassing.

Sounds like if anyone deserves to have a 5d3, it's you :-) ... and be sure to use Magic Lantern esp. with 5d3 & video, they also have a nice helpful forum over there http://www.magiclantern.fm/forum/

1960
EOS Bodies / Re: Wait for the Canon 5D Mark IV or get the Mark III?
« on: November 03, 2013, 02:28:27 PM »
I actually purchased a 6D only a few months ago, picked up the 5D Mark III a few weeks ago and now I'm in the process of selling the 6D. Reason being: the 5D's AF system is far superior, especially with fast primes

... and esp. with newer Canon zooms, your 24-70L2 would be wasted on a 6d since its enhanced af precision can only be used on 5d3/1dx.

I can't think you all enough. And Marsu42 and StudentofLight, w/o your help, I know I couldn't have asked nearly as good questions of the Canon sales rep. at the store. (It was rep. weekend at the store I bought the camera at).

Happy to hear it :-) now if I only also had to money to buy a 5d3 and not end up with a 6d:-p

1961
EOS Bodies / Re: Wait for the Canon 5D Mark IV or get the Mark III?
« on: November 03, 2013, 08:38:07 AM »
I just did a focus speed test with the 100mm Macro in poor lighting conditions.

As in many other 6d tests this is worthless (sorry) if you don't specify the LV of the scene (you can calculate it from aperture/shutter/iso value) - the 5d3 is supposed to focus up to -2 LV, the 6d center up to -3 LV ... question is from which LV downwards is the 6d quicker to do so, even if it's somewhat brighter than -2LV.

1962
EOS Bodies / Re: Wait for the Canon 5D Mark IV or get the Mark III?
« on: November 03, 2013, 07:48:16 AM »
Marsu42, what do you mean that you "find it to be rather erratic with my 100L lens when trying to lock on low-contrast surfaces, that's because @f2.8 it's non-cross." I didn't realize the f top effected the cross points. (Oh, so much to learn!).

Indeed, this is a rather tricky problem with the 6d/5d3 af system... you have to differentiate between pattern detection and precision. Here's my layman explanation:

* pattern detection: a cross-type af point can detect horizontal (example: venetian blinds) and vertical lines (example: fence), and thus is more reliable to focus on low-contrast surface. On the 5d2/6d the outer af points are either horizontal *or* vertical and thus will fail more often - you need to focus on a contrast and then recompose.

* precision: some af points are not precise enough for the thin depth of field of f2.8+ lenses - such as the 5d2/6d outer points and some Rebels - this means that with a slower lens you'll never experience any problems (probably that's why Canon released the 24-70/4LIS as f4...), but with a fast lens you'll get more out of focus shots.

Here's the catch: The 5d2/6d centeral af point is non-cross (horizontal only) @f2.8, but cross @f5.6, meaning if it cannot focus with the f2.8 line it will fall back to the f5.6 cross. So for example shooting with the 100L wide open it'll be fine on contrasty objects, but I find myself getting more slight oof shots on tricky objects :-\

1963
EOS Bodies / Re: Wait for the Canon 5D Mark IV or get the Mark III?
« on: November 03, 2013, 05:55:52 AM »
The 6D's AF-system is better than the 5D2 which has served pro-photographers well since 2008. The centre AF point is phenomenal

The 6d's af system is an improvement in terms of precision (see lensrentals on this), but otherwise that doesn't mean much ... I definitely wouldn't call the center point "phenomenal" with f2.8+ lenses but find it to be rather erratic with my 100L lens when trying to lock on low-contrast surfaces, that's because @f2.8 it's non-cross it and this really shows. Also of course focus & recompose induces a lot of problems because the outer points are so few and don't have f2.8 precision at all.

the canon 5d mark IV might not have raw VIDEO…if you need that

I doubt if Canon will really remove the firmware hooks for Magic Lantern raw processing on the 5d4, it's a major sales factor and not everyone can afford a 1dc... the real danger is that the 2-3 people working on Magic Lantern raw will be busy with other projects in the future and there won't be a ML at all for the 5d4 (or 70d or 7d2, for that matter).

1964
EOS Bodies / Re: EOS 7D Mark II Spec List Surfaces [CR1]
« on: November 02, 2013, 03:53:18 PM »
Why only one slot, do you think?

Either it's a rather compact model so that 2 cf slots don't fit, Canon doesn't want combined cf/sd, or (more likely) Canon plays the good ol' "professional use should be expensive" game and reserves mission-critical features like a backup slot for the 5d3+ line.

1965
EOS Bodies / Re: Wait for the Canon 5D Mark IV or get the Mark III?
« on: November 02, 2013, 07:37:22 AM »
But really like the idea of using video in the same camera (am formerly a doc. filmmaker, so video is important). [...] Do I wait for 5dmv or drop down to the 6D (good $1500 less) for now and wait it out?

Welcome to the forum - there are lots of good threads about 5d3 vs 6d vs (use search :-)), but here's the gist: For video get the 5d3, as Canon intended it beats the 6d hands down for to reasons: a) no moiré, a serious issue with the 6d sensor, b) with the Magic Lantern firmware add-on 14bit *raw* _1080p_ shooting with the 5d3, the 6d is limited to 720p raw due to slow sd card speed.

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