March 06, 2015, 06:10:29 AM

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Messages - Marsu42

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You are limited to the 8-bit codec Canon uses but it isn't bad if you get the exposure right.

In that case, do hope Magic Lantern at last makes it to the 70d so you can shoot 14bit raw with full dynamic range :-) ... I don't know how fast the sd card speed of the 70d is though. But the good people owning a 70d are frantic for an ML release as the 70d with its swivel screeen & dpaf seems to be a nice video setup in that price range.

Sounds like a nightmare to me to sort out all those captures  afterwards.

I'm sure someone smart will figure out an algorithm to do it for you, at least for the bulk. Magic Lantern already has some of it, actually such an algorithm is built into Canon's digic chips right now (yes!) - for their burst silent shooting, they let the digic compute a "in-focus" quality scale and automatically select the best ones. And if you only need one shot where the ball hits the soccer player's head, well, that's even easier to select.

But I sympathize with your reluctance to imagine possibilities of new tech, that's makes the CR people what it are :->

I rarely spray and pray. And even then 5-6 fps are plenty for my usage.

Maybe so, but obviously the high-fps 1d cameras meet a demand. My 120fps example might be over the top as the raw data rates would be ridiculously high, but let's say 15fps 4k raw shooting - I'm positive it'll sell like hotcakes.

Software & Accessories / Re: Adobe Lightroom 6 Coming March 9
« on: February 25, 2015, 01:52:30 PM »
And you have to draw a line in the sand somewhere.

Sure, and for me the differentiation between LR and PS is that the latter is designed for photo compositing and layering to support a full-fledged dtp app like Indesign or do posters on its own complete with typography.

I find that an extended heal by canvas extension is absolutely in the scope of LR, and as argued being to forced to throw away image data just because you rotate the image can be improved for sure.

But I don't see criticizing it as being a lousy program for doing something it was never designed to do.

Did I ever do that? I think LR is one ever the best programs ever, I have no idea what I'd do without the speed, bulk editing and cataloging. The latest healing features in LR5 make it even better as I often have to replace small parts like a leaf of grass that caught too much flash light, and that was a pain with LR4's circular-only healing. Ends Adobe commercial :-)

I don't feel the need for more pixels, but wouldn't want less; and I use my video camera for capturing video so I don't need 4k video.

As far as I understand it, the attractiveness of 4k for still shooters is grabbing hi-res frames off the sensor w/o the need to move the mirror. How about 120fps 8mp raw shooting to capture the moment?

Software & Accessories / Re: Adobe Lightroom 6 Coming March 9
« on: February 25, 2015, 12:19:26 AM »
Canvas extension would be a nice feature!

Btw the lack of canvas extension results in a really strange behaviors: If you do some aspect ratio or perspective correction with automatic "upright" or with the manual lens correction sliders, you get white parts on the edges of the frame you cannot touch or fill and have to crop away. Doh.

EOS Bodies / Re: 6D firmware 1.1.6 exposure issue
« on: February 25, 2015, 12:16:29 AM »
So, I've got 1.1.3 as factory installed. Is there a good reason to upgrade? Any major improvements in function?

Imho the autofocus fix can be considered "major", but you currently cannot run Magic Lantern with 1.1.6 (they're on it though and it'll be ready in some weeks).

What additional detail is visible is so because there is less noise, there is no more spatial resolution.

I'm nowhere near promoting this technique, but imho in theory upscaling *can* result in more res on select images.

OnOne has pioneered this with their "genuine fractals" PS plugin, which was the most stupid name ever because no one understood what it did. Afaik it's part of their plugin suite now. The idea - to my understanding - is smart extrapolating, i.e. not straight lines but more "natural" patterns, too. When I tried it it worked, and while I'm not a big fan of too much image cooking beats any other upscaling method.

So even if this super-resolution doesn't get you terrapixel shots, it's probably nice to have as an additional method in the tool bag if a shot doesn't have enough metapixies. At least, it seems it cannot make the image worse :->

Software & Accessories / Re: Adobe Lightroom 6 Coming March 9
« on: February 24, 2015, 01:10:38 PM »
How is it not already?  Because it can't do layers?  Or pixel-level editing?

My one major grief is that you cannot extend the canvas, i.e. on rotate there's no way to heal-fill an area, you *have* to delete the part that is rotated out of the rectangle. The same goes for fixing a too tight framing. This is stupid because after a trip to a pixel editing app (converting raw->tiff, doh) and adding some space around the shot LR's heal/clone brush works just fine for this purpose.

Yes and reading a link like that illustrates the near certain fact that you don't actually do it, or, if you do, that you don't analyze the actual output.

Interesting, I didn't know this technique. I don't understand why you state that him reading means he doesn't do it? The article is rather conservative on what to expect concerning detail and mentions noise reduction (Canon Rebel multishot, here we come) and moiré elimination.

Now I don’t want to get your hopes too high: the difference in perceived resolution between a 24 megapixel image and a 94 megapixel image is actually less drastic than you might think. Even though it’s nearly four times as large, the increase in resolution will only be apparent in the areas of the image with the finest detail. As a result, the technique here only shows tangible returns on very highly detailed scenes. This is a pixel peeper’s method.  The benefits are very real, but the results might be less drastic than numbers would initially indicate.

... and my favorite line ...

But let’s make a huge image just because we can

Btw - is there a ready-made photoshop action for this rather than doing it all manually?

Photography Technique / Re: What is your keeper rate?
« on: February 24, 2015, 09:34:47 AM »
so if you are shooting at f/3.5 to f/5.6... you probably will never miss having your target in focus... due to afma... not user error...

I find f2.8 on my 100L pretty thin already, and with my 6d vf I definitely cannot mf that tiny difference. So if there's a little spot to af on (like an animal's eye) the shot is lost even if the camera decides to lock on the eyelashes. This is not a "real" af miss or bad afma, but it has an effect of the keeper rate.

However, I guess the largest difference concerning keeper rate is print/view size. With the 100L wide open, if you really pixel peep on closer distances (not "macro", mind you) the af pane is often not 100% where you'd like it to be - so you have to define a personal threshold what's still ok and what isn't.

EOS Bodies - For Stills / Re: I just want a stills camera.
« on: February 23, 2015, 05:11:35 PM »
Does anyone else wonder this or long for this?

Lotsa people have been wondering for ages, and this is a very popular topic. The usual answer is that is afaik ...

  • doing special-purpose cams for a minority would be more expensive, so you're actually spending *less* money for *more* features on mass-produced still-video hybrid dslrs
  • not using video isn't very hurtful if you discount the stronger aa filter that might be weaker for pure stills
  • video is a "free" add-on concerning the technology, nothing special about grabbing frames of the sensor and then putting 'em into a video stream instead of a jpeg. Sure, they have to put some r&d into it, but not adding the existing firmware to a camera wouldn't do you any good.

If you feel very strongly about this, do a Magic Lantern "anti-feature" request - I guess it's fairly easy to disable (and probably hide) all video functions on your dslr to stop any confusion and malicious feelings :-)

Last not least, you'll *love* video on the upcoming 4k cameras if you can grab 120 raw frames from the video stream - compare this to an expensive 1dx that needs lots of sturdy tech to flip the mirror 12x per second...

EOS Bodies / Re: 6D firmware 1.1.6 exposure issue
« on: February 23, 2015, 04:31:22 PM »
Please be factual. Canon DOES extensively test firmware upgrades including those for the Canon 6D one of the companies in our portfolio gets beta versions to test.

FACTUAL is my second name and I can do bold, too and lots of other things things that don't enhance the content at all:-)

If you would be so kind to notice, of course I didn't say that Canon simply shells out new fw versions w/o testing. I expect they have dedicated beta testers, and right before release serviced cameras get a fw update before it gets released into the wild to do check if something really bad has slipped by.

However, I very suspect thy do more extensive testing on "pro" and expensive gear like 1d. How else can the things that they ack in their own changelog gone unnoticed for so long, for example the center pt af but on the 6d? And going by these changelogs, Canon tries not to touch the cheap models if they can help it to save on r&d and beta testing costs.

Lenses / Re: APS-C 60mm or 100mm macro lens?
« on: February 23, 2015, 11:19:29 AM »
Yes, but shooting the butterfly with the 200 on APS-C is funny!

Sure, I guess a lot of people buying macro lenses start off like that, shoot away and add a watermark. A tele lens can produce nice shots for web-size, but if you encounter really nice scenes you begin to wonder why you cannot make more of it - and with a tele-lens even with as little mfd as the 70-300L, you can only get so much magnification.

Photography Technique / Re: What is your keeper rate?
« on: February 23, 2015, 10:42:23 AM »
My keeper rate increased drastically after I found my AFMA was set to -8 for all lenses. I was begining to think my 24-70 was a piece of poo, as it turns out it's the user who is infact the piece of poo

That would be one reason why Canon doesn't allow changing the afma on cheap (i.e. sub $1000) camera bodies - they probably have too many service hassle, same probably goes for too many menu options. Of course the other reason is upselling people to more expensive gear, but we'll never know what reason has what weight in their internal decision making.

Lenses / Re: APS-C 60mm or 100mm macro lens?
« on: February 23, 2015, 10:28:40 AM »
When you want to have realy long reach, then use a Tele-Lens.

But a tele-lens (next to worse iq than a macro) needs way higher shutter speed as you're so far away from the subject, and you completely lose af precision when shooting with a thin dof. I have some nice "environmental" butterfly shots with my 70-300L on a 60d, but you never, ever get near that kind of magnification even on mfd.

Agreed - this shot was taken with the aperture wide open and the light source was troublesome in relation to the position of the lens.

The nice thing about macro shooting is that you really learn to develop a sense for details - you don't see "oh, a butterfly!" anymore but know the whole animal front to back. And the behavior, if you try to crawl up on it.

The problem with shooting live animals (and we don't kill 'em for focus stacking, do we?) is that if you want to have a lot in focus this leaves you with exactly one position - right angle to the lens. With everything else, the dof is too thin to get even one eye into focus, let alone the whole head so I feel this always has a "out of focus" look to it. Ymmv.

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