Web Analytics RiceHigh's Pentax Blog: Sony New Alphas and Prime Lenses Announced (and also News about a Canon Super Sensor)

Wednesday, August 25, 2010

Sony New Alphas and Prime Lenses Announced (and also News about a Canon Super Sensor)

The new Sony stuff have just been announced today, which IMO are just more exciting than the Nikon new offers which have just been announced. As usual, 1001 Noisy Cameras have made a very comprehensive nice summary at the first time for the new offerings and full reviews, in which there are many test and sample pictures.

This official video Ad by Sony UK is also nice, just have a look!



(URL: http://www.youtube.com/watch?v=eKwLICLPUoY)

Well, as before for times, I once again have successfully spotted the correct "rumour" post for the A55 and A33 design and specs for almost one week. So, it's bingo again! =V= I shall continue to strive to keep that high hit rate, I promise! :-)

One thing I like about the A55/33 is its diminishing size and lightweight. It is not heavier than a typical (ex-?)4/3 SLR body of Oly after all, but far more feature-rich than those.

Besides, the next newer post at the 1001 Noisy Cameras reveals that Canon is to make a 120MP APS-H CMOS sensor! Yes, it is 120, not a typo!! :-o Well, are they crazy? So, my last suggested question would just happen in reality, that is: Is MF Really Needed for Higher Pixel Count? Umm.., it seems that the 645D (or its successors) would be in trouble! But on the other hand, I just wonder what Canon lens(es) is to be used to match (or just come close to!) the resolution of this super high-density sensor? Newly designed ones?

Update: Here is a YouTube video showing the translucent mirror of the A55/33 and the shutter action (and sound). Enjoy!

http://www.youtube.com/watch?v=zwWp54mv9pI

Comments (5)

Loading... Logging you in...
  • Logged in as
The diffraction limit for the canon APS-H 120 MP sensor is definitly f2.8- Come on this is ridiculous for a APS-H camera. Moreover, the lens would have to resole some 15000lpph, 5-10x what actual lenses can get to, as this translates into 1500 lines per mm resolution. Any lens designers round here? Is it optically possible to build al ens that resolves 700lppm on an APS Circle? Don't think, Leicas max out at 70lppm as MTF50 figure.
3 replies · active less than 1 minute ago
Yes, I think the proposed Canon design doesn't make any sense at all, frankly. As you've mentioned, a 70 lp/mm lens at MTF 50% is already considered to be very good in optical performance already. A 70 lp/mm transfer to 233 bayer pixels per mm at best before the sensor could outresolve the lens according to typical Imatest resolution tests told us. So, for a 30 x 20mm APS-H sensor, which projects into only about 7000 x 4660 pixels which is close to 33 MPs only, at most and at best.

All in all, if Canon makes a 40MP 135 FF sensor, the 40MP 645D is threatened immedately, as this camera could really perform with excellent glass. But however, a 120MP APS-H sensor is just a joke, even they have the superb technologies and ability to make it!
... but: Maybe downsizing the final output to 40MP would solve the known problems with demosaicing bayer patterns as all colorpixels would be lighted be the airy disk at once. RGB-Pixelbinning or something like that?
Maybe. But I still think that there is no point to pack so many pixels to get that little advantage(s) with more unfavourable disadvantages that possibly come up with, e.g., noise.
There'll always be different type of sensors and with that different Formats, all for different uses. For example:

Medium Format: larger depth of field, bigger Viewfinder, special lenses
Use: (Highly specialised) Fashion and Studio, Still-Life, Architecture, Landscapes

Full Frame 135: Useful depth of field, loads of lenses, excellent R&D over the decades
Use: All-Round like Sports, Fashion / Portrait, Newspaper-work, Studio etc

APS-C: lightweight, EVF / Viewfinder Concept, smaller then 135, especially for beginners / amateurs
Use: All-Round with exceptions

The m4/3 or 4/3 concept is dead, at least that's my opinion about it. No fast glas for m4/3 and now that
Sony delivered an excellent (as you've pointed out, too!) EVIL there's simply no point in developing it
any further.

Photography isn't about Mega Pixels in my honest opinion. It's about the depth of field and what you
really want to achieve with it. If you don't need this, well, go for a m4/3 or a P&S.I for one am seriously
considering Full Frame because I need that extra stop oftentimes and am eager to use REAL wide-angles.
But for now, I don't speculate in this departement as I don't have the money and Pentax needs to improve
some things before they'll go FF.

So, please Rice High, stop the talk about that Medium Format is dead. It's not true, and it will NEVER be.
You can trust me on that! Maybe you're even interested in a little "Sports" bet on this one? ;-)

Anyways, go out there and shoot with all your pretty cameras! I would really appreciate some real, none
measurbating, shots from you! How about that? Maybe then you'll notice that you can be very excited about
all the lenses and other accesories you have? Even for your Pentax System? :-)

Anyway, If you wan't to get rid of your FA* 85mm f1.4 give me a call! I am highly interested! :-P

Sincerely and with greetings from germany,

Moritz Schwertner

http://www.moritzschwertner.de/

Post a new comment

Comments by