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Messages - Marsu42

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1846
EOS Bodies / Re: 'Revolutionary' Dual Pixel AF Explained
« on: July 28, 2013, 11:44:29 AM »
Excuse my ignorance but how will spot/point AF be possible? Offhand i am thinking that in those situations wouldnt the current AF system be preferable?

Doesn't seem to be a problem for me to be done in live view, it's just how the camera fw evaluates the scene. Plus the 70d could link spot to the af point, something only seen in the 1d series :-)

I think the advantage of the optical viewfinder is...

... that:
* you can hold the camera/lens properly w/o fatigue
* since the gadget is near your head, it's much more natural coordination just like "looking" w/o dslr
* you see something at all in bright sunlight
* the perceived ovf frame looks larger than the lcd at 20cm distance
* an ovf doesn't draw battery power

The main advantage of the live view is that you can enhance the display with multiple information, specifically focus peaking, zebras & histogram, this is also something I'd like to see in an evf. Plus the 70d can fast af anywhere, admittedly a very large advantage over say the miniature af point spread like 5d2/6d.

1847
EOS Bodies / Re: EOS 70D a New Benchmark in ISO Performance?
« on: July 28, 2013, 09:36:25 AM »
Who knows exactly how the downstream amp works, or what impact it has on ISO settings that use it.

Hmmmyes, it's a bit frustrating to not know what's going on, my current consequence is (when shooting raw) only to use full iso stops and avoid 6400 on the 18mp crop sensor. But you're correct, the ml devs also figured out that using some of the oddball 1/3rd iso stops actually results in better iq for specific scenes, and this obviously means that there is more at play than we can figure out w/o the detailed hardware specs :-\

1848
EOS Bodies / Re: Wrecked my 6D today, what a POS
« on: July 28, 2013, 09:20:04 AM »
The 7D was rated as weatherproof (whatever that actually means).
The 6D is not.

No camera is weatherproof, and they are not marketed as such just like there is no bulletproof glass, just "resistant". Of course Canon has no problem with customers "misreading" their sealing diagrams and specs. If you want affordable real bad weather capability, ask Pentax :-\

This has been debated a lot, and my consequence is that only 1d camera bodies are meant for shooting in the rain, for everything else you have to be more or less lucky. With my 60d (~6d sealing it seems to me) I avoid water that directly hits the sealing points, i.e. I only shoot in snow or very light rain for short periods of time and remove water on my camera while shooting and afterwards with a towel.

1849
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.

1850
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: http://magiclantern.wikia.com/wiki/ISO (see "http://magiclantern.wikia.com/wiki/ISO").

1851
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.

1852
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.

1853
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

1854
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...

1855
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 :-\

1856
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.

1857
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.

1858
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...

1859
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: http://pliki.optyczne.pl/C60D/IMG_3442.JPG vs. http://pliki.optyczne.pl/C70D/przyk1/C70D_f14.JPG
* iso6400: http://pliki.optyczne.pl/C60D/IMG_3464.JPG vs. http://pliki.optyczne.pl/C70D/przyk1/C70D_f17.JPG

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.

1860
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.

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