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Messages - carlosmeldano

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1
EOS Bodies / Re: New Sensor Tech in EOS 7D Mark II [CR2]
« on: June 19, 2014, 01:06:48 PM »
When 70D was announced after a long delay after circulating speculations on both a 20MP or a 24MP sensor or an existing 18MP sensor, I thought that this technology is not completely done yet. I think it was developed further and tested for a complete solution for 7D2 and the delay is because of this.

I also vote for an advanced Dual/Quad Pixel CMOS AF for 7D2 and the rumors from last year (before 70D) points to this.

But, I also think that 70D is capable of doing more. I think the tech applied in the 70D is a bit dumbed down by firmware to keep room for a bigger bang, the 7D2.

2
How is supoused to be good for video a zoom lens (EF-S 10-18 f/4.5-5.6 IS STM) with no constant max. aperture?
Am I missing something? Please do not tell me "you shouldn´t zoom while making videos". ;)

what do you zoom in the 10-18mm range?

this lens is for stabilized video recording with silent AF. and for that, it's the missing link. it's pretty good for making video from family events. I love my 17-55 USM for photos but don't like the rattling while focusing. it's good indoors, but outdoors, no fast aperture is needed. STM lenses are much better for this.

if a fair price is given to it (~$300), I have my birthday :D

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Lenses / Re: New EF-S Ultrawide Coming? [CR1]
« on: May 05, 2014, 05:26:27 PM »
fast STM lenses.

10-22 F4 IS, 17-55 F2.8 IS, both with STM.

with 70D, it makes a huge sense to have STM in these new lenses.

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EOS Bodies / Re: EOS 70D a New Benchmark in ISO Performance?
« on: July 30, 2013, 12:23:12 PM »
the 5D3 does have a dedicated AF processor, like the 7D and the 1Dx. thats why these cameras have superior AF.

the 70D indeed has at least one dedicated AF processor... for CMOS AF.

check the interview here: http://www.learn.usa.canon.com/resources/articles/2013/eos_70d_interview_with_developers.shtml, page 4, top of right column.

Miyanari: “With the AF signal of Dual Pixel CMOS AF, there was twice the amount of information as the number of effective pixels that lined the sensor. This process could be performed with just the imaging processor; however, we believed it would be too much to ask, so a dedicated IC was developed. By establishing an IC for the role of preparation so the imaging processor could process one after the other, high-speed, optimized processing was made possible."


so, the digic 5+ is capable of handling such that computing capacity, I don't think that a separate AF processor should be used, but if they use one for CMOS AF, they might applied the other for the conventional AF.

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EOS Bodies / Re: Canon EOS 70D Announced
« on: July 02, 2013, 11:21:18 AM »
70D:
148X111X74 (vol. 1.216)

139.0 x 104.3 x 78.5mm

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EOS Bodies / Re: Canon EOS 70D Announced
« on: July 02, 2013, 10:02:43 AM »
But the Canon site doesn't show this as a feature.  Why would they not list an important feature on their USA site if it has it?  Hmmmmm.

Indeed it does, just check the UK site: http://www.canon.co.uk/For_Home/Product_Finder/Cameras/Digital_SLR/EOS_70D/index.aspx, Specifications

7
EOS Bodies / Re: Canon EOS 70D Announced
« on: July 02, 2013, 09:38:14 AM »
They have just put the 3-10x digital zoom to movie mode that was present and was adorable in 600D ????

Nowhere mentioned, but let's just check this video issued by Canon Australia: Canon EOS 70D - First Look 5:07

8
EOS Bodies / Re: Canon EOS 70D Announced
« on: July 02, 2013, 08:11:45 AM »
2.  Nowhere in the promoted features does it mention enhanced noise performance. I'm pretty certain that if Canon had managed noise free images at say ISO 800/1600, it would've been a headline feature.

I don't think it will be much much better. I think it'll be a bit better than the IQ coming out from 18MP sensor, and some better JPEG thanks to DIGIC5+.

"With that said, we were told to expect comparable ISO performance with the 7D and better color due to the new pixel structure." (http://www.thephoblographer.com/2013/07/02/first-impressions-canon-70d/)

The sample images (especially the butterflies) doesn't amaze me with ISO performance. The specs of the camera indeed does.

9
EOS Bodies / dual pixel cmos AF
« on: June 28, 2013, 03:07:52 PM »
dual pixel cmos autofocus

http://www.canonwatch.com/canon-eos-70d-dual-pixel-auto-focus-specs-leaked/

machine translated, but it seems that this is a completely new autofocus technology that works on the whole sensor surface. if it works well and software is implemented well (not like @ eos m first), it'd be awesome.

seems like both conventional and live view autofocus will be effective.

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EOS Bodies / Re: Canon 8D?
« on: June 28, 2013, 09:28:41 AM »
What I find interesting is that the ISO range is the same as the T5i.... there really isn't much of a difference in size of pixels between  18 and 20 Mpixels.... I would have expected that if they had gone to a newer process that the ISO range would have exceeded the T5i, so my bet is the same technology as before for the sensor with further improvements to "live view" like we have seen on the last few lower-end releases.

Canon also said that it was to be the 7D2 that was the "game changer". That's when I would expect to see any signifianly better technology emerge.

Yes, you may be right.

Canon may put the same-or-bit-better-IQ 20MP sensor to 70D and putting the much-better-IQ 24MP sensor to 7D mk2.


if 8D is "kitted" with 18-55 lens, then it´s not the 7DII replacement.

I think it's kitted because it's also STM-capable but there are no higher-priced STM lenses.

11
EOS Bodies / Re: Canon EOS 70D Spec List
« on: June 28, 2013, 08:48:53 AM »
Our problem as Canon users is, that I expect Canon will not be able to deliver a sensor+electronics matching the current Nikon D7100 sensor in terms of IQ. Not in resolution (20 vs. 24 MP) and probably even less so in DR across all ISO settings starting at base ISO nor in Hi-ISO Noise. At best, I expect the 70D sensor to come in "only" 1 EV lower in DR and noise across the entire ISO range.

Canon uses the same 18MP sensor in their ASP-C cameras since 2009. It was very good at that time, bug aged since then.

I don't think they weren't developing new sensors. I may accept that they couldn't develop as good sensors as competitors, but for me, the 20MP tells something: it must be much better.

Why? They must have developed a few different sensors in size, and they tested all. After all, they decided to use a 20MP one in the 70D.

Why? Maybe because their 24MP sensor doesn't have as good IQ as the Nikon one. But the 20MP one, I think is at least as good as the one in Nikon.

Othewise, what would the market say? Lame Canon couldn't even develop a sensor with the same IQ as the one in Nikon that has 25% more pixels.

We'll see on next Tuesday.

12
EOS Bodies / Canon 8D?
« on: June 28, 2013, 05:20:16 AM »
What about Canon 8D?

http://www.fotoplus.su/catalog/photo/canon/5542/

As the 70D along with 8D was present on this site hours before the 70D specs leaked, I wouldn't be suprised if 8D also gets announced, and 7D2 will be a whole different body with different sensor.

What if 70D is like 60D in quality and AFMA, and 8D is like a more robust 7D, and 7D2 is something even better next year, even with a new and bigger sensor.

13
EOS Bodies / Re: Canon EOS 70D Spec List
« on: June 27, 2013, 05:02:06 PM »
I'd much rather have AMFA than a magnesium body.

I think AFMA must be present in this class. It I need to choose, I'd choose AFMA.

14
EOS Bodies / Re: Canon EOS 70D Spec List
« on: June 27, 2013, 03:44:45 PM »
So the 70D is a good step ahead.... autofocus with 19 cross points and 5Xfaster live view.... a bump up in ISO and # of pixels... WiFi..... This makes the 7D a very lame duck... perhaps even a dead duck...

This can only mean only one of two things.... that the 7D line is to be discontinued, or that the 7D2 will be a SIGNIFICANT step up over the 7D... I'm hoping for the latter!

What's not clear about 70D yet:
- AFMA is present or not
- body is magnesium alloy or not
- SD card slot speed

I think 7d2 will have magnesium-alloy body, focus system of 5d3 or closer to that, dual memory slot, digic 6/6+, 1080p@60fps, even a new sensor and everything 70D has. So, 7d2 will be more of a high-end ASP-C.

But I speculate 70D will be priced high, 1200$+

15
EOS Bodies / Re: New AF Technology Coming in July? [CR1]
« on: May 27, 2013, 03:52:11 AM »
I remembered I read this new AF somewhere and yes, here: http://www.canonrumors.com/2013/04/the-future-of-eos-m-cr1/.

A new autofocus system will come with the new cameras and promises to be “class leading”.

And this was for the next EOS-M, so I'm sure it'll be a new type of Hybrid AF.

Guys, this rumor above stated the new autofocus system to be "class leading" but this rumors is related to the next EOS-M that is mirrorless.

This must be an enhanced and hopefully working Hybrid AF.

So my bet: many AF points on the sensor (like SL1) with a dedicated focusing hardware or much better implemented software for it. A usable (or even "class leading") solution for live view autofocus.

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