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Messages - Marsu42

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EOS Bodies / Re: 'Revolutionary' Dual Pixel AF Explained
« on: July 28, 2013, 08:11:55 AM »
Does this obsolete the RGB AF focus stuff in the 1DX, if Canon chooses to enable it in firmware for a given camera model?

Afaik rgb metering is a hardware feature, and only important for very specific situations - usually the good ol' Canon metering does a good job, that's why this particular feature is seldom mentioned by people migrating to Nikon who have rgb metering on more cameras than their top models.

EOS Bodies / Re: EOS 70D a New Benchmark in ISO Performance?
« on: July 28, 2013, 06:30:49 AM »
I think the tests from the canon site are not a reliable tests, they look pretty good, but if the improvement is not good enough I think they would try to hide that fact, it would not be smart from them to give us reasons to start judging a camera that has not even made it yet to the market.

They hide it in plain sight - Canon doesn't announce the 70d as a (significant) improvement in iso capability, and the two higher iso sample shots on their site are carefully selected to be very good nr'able.

Actually, only expanded ISO modes on Canon's are pushed digitally. ISO settings above 1600 on most of their cameras (with the exceptions probably being the 1DX, 5DIII, and 6D) still use an analog amplifier for 2000, 2500, 3200, 4000, 5000, and 6400. It's just that it is a downstream amp. So it occurs after the sensor does its read, meaning any noise picked up between actual read and ADC is amplified again with that second amp. For RAW, the "digital" amp (any expanded ISO setting, i.e. 12800 or 25600) is really just a metadata marker that tells the RAW editor to perform the digital boost...which as you stated could be done by you in software anyway.

Interesting, and contrary to what the Magic Lantern guys have figured out - they state that iso6400 also has the same data as iso3200, just moved around just like the expanded iso modes: (see "").

EOS Bodies - For Stills / Re: Buying advice -> 60D too bulky
« on: July 27, 2013, 07:06:09 AM »
Main focus should be on landscapes, people, "sports".

That just about covers everything, doesn't it :-p ?

Unfortunately the smaller the camera, the less features and usability it has with Canon - this is not a given, but simply their marketing is. The first camera that was downsized w/o loosing too many features was the full frame 6d which is also 60d-size, actually the 6d is your best image quality bet for everything except sports.

Maybe you should really go with a tiny SL1 until it's determined what is actually shot, my experience is that the aversion to bulk/weight somewhat lessens with usage and once you discover what you're getting for it in photographic freedom.

EOS Bodies / Re: EOS 70D a New Benchmark in ISO Performance?
« on: July 27, 2013, 03:50:18 AM »
ISOs 6400+ seem to be slightly cleaner - but that's about it.

Probably the 70d has an added *real* analog iso6400 mode, while on the current 18mp sensor iso3200 is the highest setting and everything above is pushed *digitally* which you can also do in raw post w/ better results.

EOS Bodies / Re: 'Revolutionary' Dual Pixel AF Explained
« on: July 26, 2013, 12:33:50 PM »
Thanks for explaining why this dual pixel af doesn't provide any significant step forward to what I do...

* I like to shoot through an (o)vf, and with heavier lenses everything else is non-practical except ...
* When on mono-/tripod in lv I use mf with Magic Lantern's focus peaking (and raw zebras/histogram)
* I don't do video, for my 2ct they could release a non-movie 6d w/ a lower price

EOS Bodies / Re: A Canon 44.7MP DSLR at the End of August? [CR1]
« on: July 26, 2013, 04:09:11 AM »
I usually don't dabble in reading about DR test charts and viewing blownup 35mm 40x60"s with a loupe. Sorry if I don't fit into that version of "Informed". I didn't mean offend you with my comment, It wasn't directed at you. :P

I'm sorry myself, my post was more aggressive than intended :-\ ... all I wanted to say that "you don't need more than [insert mp number here] resolution" or "you don't need more than [insert dr value here]" are very subjective and there are good and valid applications for more dr and more resolution (macro / cropping from the same source / aspect ratio change!).

The "return of invest" of higher specs is falling, 12->18 mp was more important than 16->24 mp, same with dr, but imho we're not at the stage where people wishing for better specs don't make sense can be called out of their minds right away...

EOS Bodies / Re: EOS 70D a New Benchmark in ISO Performance?
« on: July 26, 2013, 04:02:02 AM »
Are there any example pictures from 70d vs 60d on full size?

For the answer/links look just two post above :-\

EOS Bodies / Re: A Canon 44.7MP DSLR at the End of August? [CR1]
« on: July 25, 2013, 11:57:45 AM »
I lol at DRones who forget that 21MP still makes Jumbo sized prints.

What high res is good for has been gone into in quite detail, it's not only for large print sizes - feel free to read up on that, denying every use for more than 20mp doesn't qualify as "informed" in my book.

As for DRooling DRotographers who want DResperately want more DR: blown highlights are blown highlights at (nearly) at every print or screen size, so I hope Canon won't sacrifice advancements in one area for the other.

EOS Bodies / Re: A Canon 44.7MP DSLR at the End of August? [CR1]
« on: July 25, 2013, 09:54:11 AM »
44.7MP sounds too great to be true!

Plus it's more than Nikon's 36, so all those people whining about resolution can stop buying a d800 and start saving for a 1d ... now we only need to see the dynamic range :-p,  I wonder if Canon's new baby will have raw recording like non-1d bodies with Magic Lantern.

Lenses / Re: Patent: Canon EF 50 f/1.8 IS
« on: July 25, 2013, 09:29:52 AM »
IS on a 50mm? Why?

Because their fast zoom in this range doesn't have IS, so rather than go f2.8+IS they do it the other way around: 1.8+IS :-\ ... and they'll probably also design and market these as video lenses.

That's cool I see your point ... but a cheap fifty without IS already exists.

But w/o a decent af system...

EOS Bodies / Re: EOS 70D a New Benchmark in ISO Performance?
« on: July 25, 2013, 08:54:44 AM »
Not sure if it has been posted before, but here is a link to a polish site with test shots ranging from ISO 100-25600.

They shot this with the 50L @f8 and it's still soft which makes me believe these jpeg shots might have (some) noise reduction applied?

Anyway, the 60d vs 70d comparison doesn't get my hopes up for a significant performance, the 70d looks about the same as the 60d plus a minor boost in resolution:

* iso800: vs.
* iso6400: vs.

As always, this is really not saying anything until a final 70d raw converter is out which usually takes a while because ACR is only released every couple of months.

EOS Bodies - For Stills / Re: lcd display on 6d
« on: July 23, 2013, 03:11:56 PM »
Here's a start, and a Google search for "canon uniwb" will pull up plenty of reading material.

Thanks! Strictly speaking the Magic Lantern raw histogram/zebras/peaking in the picture review are better, but they also draw a lot of battery power, so I'll have a look at this.

EOS Bodies - For Stills / Re: lcd display on 6d
« on: July 23, 2013, 02:42:46 PM »
There are tricks (neutral or custom picture style and custom/shifted WB) that you can use to get the histogram and highlight clip warning 'blinkies' to more closely approximate what you can pull from the RAW file.

Interesting, never heard of this - any details available on how to achieve it exactly? I shoot raw anyway and it would be handy for flipping through the shots and look for real overexposure.

How come nobody else is hacking cameras?  Why is it always magic lantern?
Why duplicate what someone else has already done? Join in and work on something that interests you or make an existing feature work better.
Or could it be that no one else wants to open themselves up to liability?

Canon has (inofficially) conveyed that they have no problem with ml as long as they leave the 1d series alone.

Btw there are other projects adding custom fw to the cameras like 400plus, but for the newer models they joined up for ml. The reason is that the main work is not the actual coding, but the reverse engineering of Canon's digic and DryOS software, both undocumented (thanks, Canon).

It doesn't make sense duplicating all this, and the ml software framework is very mature and easy to use to add something to it - I often do if I want my camera to do some convenient things like auto-switching to fast drive on bracketing or try to stick to max. x-sync w/o risk of severe overexposure like the Canon fw does.

EOS Bodies - For Stills / Re: lcd display on 6d
« on: July 23, 2013, 12:37:26 PM »
I am not sure I understand the advantage of displaying on the LCD, a RAW file unprocessed.  What would you see?

You would see the real clipping, the blinking areas on the current cameras are only for jpeg and don't show how much highlights can be recovered from raw. Magic Lantern's raw zebras/histogram & auto-ettr is very helpful here, but even with that you cannot see the clipping *after* shooing because ml isn't able to re-read the raw from the card.

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