September 23, 2014, 02:52:52 AM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Lee Jay

Pages: 1 ... 3 4 [5] 6 7 ... 65
61
EOS Bodies / Re: More Images of the Canon EOS 7D Mark II
« on: September 13, 2014, 08:01:05 PM »
Both 6D and D610 unfortunately are too crippled as serious, longer-term useful, UNIVERSAL cameras - if moving subjects and challenging lighting conditions are also encountered shooting scenarios.

Baloney.  I've used my 5D classic in challenging lighting conditions with moving subjects, including R/C airplane and helicopter night-fly events.  It may not be as good as a Mark III or 1DX at that, but it still did the job, and I expect the 6D would have even better performance in such situations.

62
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 10:52:51 PM »
I'm asking this as a serious question, because I know nothing about shooting video, and I'm genuinely curious:

Why were/are so many people looking at the 7DmkII, a crop sensor camera, with such hope for a bounty of strong video features? As mentioned, I know nothing about video, but I would not think that a crop sensor camera would be the best option for that. What benefit would a crop sensor have for video?

Thanks for any clarification.

Realize that most cinema cameras like RED are smaller sensor cameras than full frame.  There's no reason a camera like the 7D couldn'thave decent video performance and newer video features.

63
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 08:54:47 PM »
DR is driven in part by pixel size,...

If that were true, the G15 wouldn't have more base ISO DR than the 1DX:

http://sensorgen.info/CanonPowershot_G15.html
http://sensorgen.info/CanonEOS-1D_X.html

64
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 08:52:51 PM »
I wonder if the 7D II will intrigue Chipworks enough to analyse it...they haven't really done much with Canon cameras since that one article, and nothing with Canon sensors since that article.

They have a detailed analysis of the 70D sensor.  It's just $16,000 to purchase it.

The only reason on-sensor ADC is good is so that you have lots and lots of them (and don't need lots and lots of PC board traces).  Discrete ADCs can be quite good.  I'm about to start using some commercial parts that are 24 bits at +/- 500mV with a rated DR of 110db, and that's with screw terminals to bring the voltages to it from entirely off the module.

And the only reason lots and lots of them is a good thing is so they can each run slowly.  I wonder if Canon could implement a high DR mode that would slow the 7DII down to 1fps for lower read noise, and a super high DR mode that would do that and do the Magic Lantern dual-ISO trick too.  All with the same sensor.

65
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 08:21:25 PM »
The fact that the 7D II is going to use DIGIC 6, which has been designed and still includes the ADC,...

By the way, I found out that DIGIC doesn't include the ADCs.

http://www.chipworks.com/en/technical-competitive-analysis/resources/blog/full-frame-dslr-cameras-canon-stays-the-course/

"Of the Canon DSLRs analyzed, the imaging chip has remained analog, with Analog Devices’ analog front end (AFE) chips handling A/D conversion en route to the Digic-branded ISPs."

66
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 08:07:58 PM »
I just think Canon missed an opportunity to tell their customers, potential customers, and those who might potentially jump ship (or at least stop waiting on Canon) for better DR that they have heard the message, have actually responded, and are now demonstrating that they, too, have the capacity to catapult their sensor technology into the 2010's. They missed it. Not are going to miss it, but missed it.

Past tense?  It's not even announced yet!  Maybe you're right, maybe not.  At this point, it's still a rumor.

The specs were confirmed, though. I mean...it's what the title says:

"Canon EOS 7D Mark II Specifications Confirmed"

As I replied to Don...I find it to be completely illogical to think that the 20.2mp sensor is somehow new. With these confirmed specs, I see no evidence to suggest any alternative: It's the 70D sensor. It's Canon doing the Canon thing...reusing parts. Being cheap. :P

Anyway..."confirmed"...means something rather specific to me.

Context - it's a "rumors" site.

Just for keeping things factual, every 18MP sensor Canon has made has had a different part number.  Yes, they all perform similarly, but not the same.  I would virtually guarantee that this one will have a new part number.  Even if it does perform the same, that doesn't mean the off-sensor A-to-D will perform the same.  In fact, it's almost certainly different just to keep up with the higher frame rate.  And that might mean it performs differently.  Finally what if it has some version of the Magic Lantern dual-ISO trick built in?  That provides a substantial DR improvement even on the exact same sensor.

So, you're making an assumption.  A series of them in fact.  Those assumptions might be logical but that doesn't make them necessarily accurate.  Let's wait until announcement and testing before putting such "conclusions" into the past tense.

67
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 07:57:30 PM »
I just think Canon missed an opportunity to tell their customers, potential customers, and those who might potentially jump ship (or at least stop waiting on Canon) for better DR that they have heard the message, have actually responded, and are now demonstrating that they, too, have the capacity to catapult their sensor technology into the 2010's. They missed it. Not are going to miss it, but missed it.

Past tense?  It's not even announced yet!  Maybe you're right, maybe not.  At this point, it's still a rumor.

68
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 07:37:33 PM »
You actually think the 70D is an improvement over the T2i in any way shape or form?

Yes, in more than one way.

69
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 06:27:12 PM »
sensor probably the same as 70D, all they really do is pushing the AF performance.

And frame rate (still and video), and build quality, and providing a head-phone jack, and probably other things we don't know about yet.  Of course, you're losing the T/S LCD, the touch screen and WiFi.

70
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 06:15:20 PM »
The 70D offers absolutely no improvement in image quality over the T2i.  It's the same flippin sensor, just using new technologies to squeeze a .001% image quality improvement out of it.

Well, the T2i has a maximum ISO of 6400, the 70D 12,800 and apparently the 7DII is 16,000.  Looking at the test images from the 70D, I'd say it's better than the T2i.  I'm not sure it's a whole stop, but it's better.  Presumably, this one will be up to 1/3 of a stop better than that.

BTW, I have a T2i.

71
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 05:37:19 PM »
...but this sucker is gonna show a lot better than what some people on here on giving it credit for based purely on what us still effectively hearsay right now. Chill. Wait.  8)

I would argue that it's not going to be "a lot better" based on the fact that the maximum ISO was increased by "only" 1/3 of a stop.  If the sensor were "a lot better", I'd expect to see the maximum ISO go up by 1 stop or so.

72
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 12:42:37 PM »
then what were actually people expecting from the 7D replacement?

Early rumors were about special video features, which led me to things like 4k, a hybrid viewfinder, no row skipping, and smooth continuous windowing.

As for stills, I was hoping for more pixels, but this isn't bad and the rest of the specs look really good for stills.

73
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 11:14:11 AM »
Beyond a certain point, miniscule differences in sensors aren't going to sell cameras. But, 10 fps, 65 autofocus points, GPS, weather resistance, intervalometers, etc. will.

More than tiny differences are available.  The A7S sensor has a 1/3 stop advantage in QE and around 1 1/2 stops in read noise at high ISO.  That's not "miniscule".

At 12 mp. Meh.

This same basic performance should scale with pixel size.  In other words, the well capacity would go down but so would the read noise, and the QE should stay about the same.  Together, that would be a pretty big advantage over current crop sensors - 1-2 stops at high ISO, and 1/2-1 stop at low ISO.  That's a pretty big deal.

74
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 10:42:56 AM »
Beyond a certain point, miniscule differences in sensors aren't going to sell cameras. But, 10 fps, 65 autofocus points, GPS, weather resistance, intervalometers, etc. will.

More than tiny differences are available.  The A7S sensor has a 1/3 stop advantage in QE and around 1 1/2 stops in read noise at high ISO.  That's not "miniscule".

75
EOS Bodies / Re: Canon EOS 7D Mark II Specifications Confirmed
« on: September 11, 2014, 10:00:52 AM »
What's with the bulge in front of the hot shoe, btw ??

I am pretty sure it is the GPS antenna

If they can put a GPS antenna on the outside, why not a WiFi antenna?  The frequencies aren't far apart.

Pages: 1 ... 3 4 [5] 6 7 ... 65