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Messages - Marsu42

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2386
EOS Bodies / Re: EOS 70D a New Benchmark in ISO Performance?
« on: July 29, 2013, 04:58:31 AM »
So who´s buying the 70d if the ISO performance is the same as 60d´s (or a small improvement)?
The 5DIII was only a small improvement over the 5DII in terms of ISO performance.  I think a few people bought 5DIIIs.  ::)

Fair enough, but afaik the main concern with the 5d2 was the mediocre af performance, while with the 18mp crop sensor it's iso - so improving on the main shortcoming would be a good idea to make people upgrade from the previous generation.

Canon obviously opted for another thing, introducing a new technology which is also fine even if the dual pixel af isn't for me, but for iso the logical upgrade is still a ff and not a newer gen crop at least until the 7d2 is here.

2387
EOS Bodies / Re: Wrecked my 6D today, what a POS
« on: July 29, 2013, 04:55:41 AM »
It's crazy why on earth canon would skimp alittle on some gaskets for 6D.

No, it isn't, because word gets around when people read threads like this and then Canon gets $1000 more selling 5d3 instead of 6d bodies - imho Canon cut corners all they could on the 6d to be able to lower the price much more than it currently is.

2388
EOS-M / Re: Focal Length Reciprocal Rule + mirrorless body
« on: July 28, 2013, 07:19:28 PM »
I suspect that the shutter spead should be much faster, because the camera body, without viewfinder-eye contact, is less stable than the DSLR's one.

Absolutely, that's why newer cameras (6d, 5d3) allow you to set a min shutter speed in the firmware. You can get the same effect by using Magic Lantern's "ML Auto ISO" which lets you do the same and more, Canon's old school formula from the previous century most of the time results of in either too fast (wide angle, static scene) or much too slow (moving subject, shaky camera) shutter speeds.

2389
EOS Bodies / Re: 'Revolutionary' Dual Pixel AF Explained
« on: July 28, 2013, 03:10:59 PM »
Those are advantages of an OVF over the LCD screen.

Correct, because this thread is about the 70d-style dual af.

However, those no longer hold for a proper EVF (except for battery consumption).

I'm also very sure evf will surpass ovf sooner or later, with equal optical quality plus many added features. But imho this point isn't reached yet, every time I look though a Sony "pro" camera with evf I'm getting the creeps, the image simply doesn't come close to what I see with my bare eyes.

2390
EOS Bodies / Re: EOS 70D a New Benchmark in ISO Performance?
« on: July 28, 2013, 11:55:24 AM »
I don't see why it is so difficult to build a sensor that amplifies to each ISO setting directly...seems a lot of other sensor manufacturers do it.low level...

Isn't that what the 1dx sensor does, looking at the constant dr curve vs. other sensors zigzag? If so, maybe it's a budget thing, and a sensor with only so many discrete analog iso settings is easier to build and then the rest is done in the in-camera postprocessing chain. Plus the usual reason for "cheating" is marketing, i.e. hoping that people and non in-depth reviews won't stumble upon the fact that higher iso settings don't deliver the results you might expect from extrapolating.

2391
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.

2392
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 :-\

2393
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.

2394
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.

2395
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").

2396
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.

2397
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.

2398
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

2399
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...

2400
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 :-\

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