Sony A750, FF 14.6 MP's

A full-frame lower MP A750 would be a very attractive upgrade to me.

However if this happens the A850 and A900 would surely become less attractive. If the A750 becomes a full-frame, high FPS, video etc camera with the build of a A700 - what would attract people to the A850/A900 other than a few little features and the higher MP?

I still look at the Canon 7D and Nikon D300s as an idea of what the A750 will be.

--
Live Music Photographer in Surrey/Hampshire, UK
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mike532 said:

StillWill said:

The rumored A750 would have a 14.6 MP FF chip (presumably cheaper due to higher yields),

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Why would you expect higher yields?

--
mike
http://mypicks.efikim.co.uk

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I do not know this to be fact, that's why I used the term "presumably". My assumption was that a higher density chip design would have a greater defect opportunity when the mask aligner projects the circuit pattern onto the silicon wafer. This may very well not be the case, however it would be nice to know for sure either way.

• Will

Replacement of a700 cant be FF. A700 is apc-sensor, so sucessor must be apc-sensor
--
These is my gear:
Minolta Lenses:
50mm f1.4--sold it
100-200
28-135
kit lens
Beercan
Sigma Lenses:
135-400
24-60 f2.8--sold it
28-200
G glass:
Sony G 70-300

My question is If they are putting soo much in the FF line up then why are they not making a ton of FF glass? Most of the non-ziess ff glass is old minolta or tammy gear. I would speculate that if this rummer is true we would see more midrange priced FF glass from sony. My thinking is If you can afford $1500 for one lens then you probably already own the a900
dave

True but the successor of a A700 would be a the A730 and not a A750 since Ax50 is propped-up version of the Ax00. But still it does not make much sense.

mario007 said:

Replacement of a700 cant be FF. A700 is apc-sensor, so sucessor must be apc-sensor
--
These is my gear:
Minolta Lenses:
50mm f1.4--sold it
100-200
28-135
kit lens
Beercan
Sigma Lenses:
135-400
24-60 f2.8--sold it
28-200
G glass:
Sony G 70-300

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--

http://frenske.zenfolio.com/

...no text

I'm in, put be on the pre-order list

Was it said somewhere that all a7xx cameras from Sony will be aps? Cause I missed that.

Full-Frame 14.6 MP
Magnesium body
wimpy but standard built in flash
Sony/Maxxum Mount
Glass pentaprism
Modern Dynamic Range (I'm in the stone age)
Video is desired
Live view also desired

If it hits all those requirements, I am drooling. You could work that device, like a point and shoot too. It matters for me when I'm not trying so hard.

I like the a850, but the price point, and lack of built in flash makes it less family friendly for every day use. Yes I know, the flash is near worthless for taking good pictures. But, a built in flash is good for wireless control, and nice to have, when something is better than nothing. I have a FVL-360 when needed.

14.6 versus 24MP, I couldn't give a hoot if it is a full-frame 14.6MP. A Low noise high iso, high Dynamic Range 14.6MP, I'll take that any day.

I am willing to take the smaller (lower magnification) viewfinder of an a7xx series with a flash over the flashless a850. I know it is a significant compromise, but if the a750 has a glass pentaprism, it is what I'm looking for. You can argue all you want, it's what I want that matters. The a700 viewfinder is so much nicer than my Maxxum 5D mirror pentaprism.

I know, photo technology has made leaps and bounds over my 5D. Don't knock it. I haven't been willing to drop the cash until I find the right one this time. For those that wish to knock me around for all the options that have come since the 5D, please see my requriements list above. No current or past item from Sony has met my requirements, but my wallet and I are waiting patiently.

The 5D takes fantastic pictures, if you know how to use it, and that stands for any camera as we all should know.

Sony, if you finally did it, Thank you.

--
Shakyone

KM 5D
28-75/f2.8 (D)

--
Thanks,

Digitalshooter!

I'm not a salesman or marketeer, just a user!

Looking at the pictures I can’t see how it can be FF with the small prism/view finder.

But then I thought, EVF ? That might be interesting, and a innovative way to shrink FF in to an even smaller body.

Still, I’d rather see a APS A7XX as I need something decent to attach my CZ16-80 to.

Lets not get ahead of ourselves.. this is rumor on rumor here. engadget says the A750 is expected to have a 14.6MP FF Sensor. They obviously lifted the rumor from LetsGoDigital.com (see the fake picture...)

If you read LetsGoDigital.org, they are not even clearly saying there's a rumor of an a750 at all... They're saying one might expect an a750 because there's various rumors floating around, including a rumor of Sony developing a 14.6MP FF sensor. They can imagine an a750 with a 14.6MP FF sensor filling the gap between the A550 and A850.

Engadget, it may seem to some (myself included) took LetsGoDigital.org's imagination , and turned it into a leak .

Read the "original" story for yourself at: www.letsgodigital.org/en/23545/sony-a750/
(Sorry, I can't post a link yet...)

I'm not doubting that there will be an a750. I do think there will be one.. I would just argue we know absolutely no more about it today than we did last week. (before this leak )

Mike

nbercasio said:

chych said:

A 14.6 MP FF would cost pretty much the same to make as a 24 MP FF, there's no way it is FF otherwise it would have to be as expensive as an A850.

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Not as expensive since MP is way less than 850...

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more expensive since the 850 uses an older sensor, were this one would have to be brand new. MP count has nothing to do with the cost of the sensor - it's just that newer sensors generally have more MP than previous ones (like how Nikon had their 6MP CCD, 10MP CCD, then 12MP CMOS), and newer sensors are more expensive 'cos they have to cover design costs etc, so as a result they're more expensive. But a brand new 14.6MP sensor would most certainly not be cheaper than the A850's older 24MP sensor.
--

I'd love to engage in a battle of the wits with you, but it appears you're unarmed.

I think most defects are caused by flaws in the silicon wafers themselves, not in mask projection and processing. If so, there won't be a significant change in the yield, as the size of the chips won't change noticeably.
--
mike
http://mypicks.efikim.co.uk

If 14.6MPx FF is true - all existing Minolta, KonocaMinolta and Sony ff lenses are perfectly suited for that sensor. This is my dream as I can utilize mine all 12 MInolta old lenses.

The super-duper Carl Zeiss glass is really needed for 25.6MPx FF but not mandatory for 14.6 MPx FF sensor...

--
ZeevK
http://www.pbase.com/zeevk

domk275 said:

like how Nikon had their 6MP CCD, 10MP CCD, then 12MP CMOS

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These were Sony sensors, not Nikon. They just happened to be used in Nikon bodies.

--
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While there are some crystal defects in bare silicon wafers, the more likely cause of yield loss will be particles generated during processing and/or dust from the environment. I'm not really familiar with Image Sensor processing specifics, but the same sized die with fewer photosites may or may not have less active area, which does go to process yield. If lenses are focusing more area onto a single photo-sensitive cell of the same size, it's possible you may get less active area on a 14MP sensor compared to a 24MP sensor.

Finally, I remember reading somewhere that Sony's CMOS sensors actually have the photocells on the backside of the wafer, not the frontside (with all the electronics). This may also factor in to the defect-density/yield equation...

Someone who works in a wafer fab that makes image sensors may have better information, but if I had to guess, I would suspect the yield wouldn't be THAT different... (BTW, I work as a yield guy in a semiconductor fab - but we don't make image sensors...)

-Mike

mike532 said:

I think most defects are caused by flaws in the silicon wafers themselves, not in mask projection and processing. If so, there won't be a significant change in the yield, as the size of the chips won't change noticeably.

Click to expand...

I don't think Sony would be introducing yet another FF right now, even if it is a reduced MP sensor. They'd be cannibalizing the A850/A900 sales way too much and would have basically lost their minds at Sony. It has be an APS-C.

What I do think is that it will have LiveView, an articulated LCD, 7 FPS and hopefully, a new AF system. They really need to advance from the 9 point system they've been using for years now and a faster APS-C camera would be a good place to introduce it.

I think those features would be enough for many A700 owner's to consider the upgrade.

(Notice I didn't mention the "v" word?)

barri said:

The picture in your link shows clearly an APS-C camera. A FF would need a larger mirror box.

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Exactly! No chance to fit FF Mirror-Chamber/VF in A700 body!

So how come the Maxxum 7 penta-prism chamber and camera generally is smaller than my APS-C A700?
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