Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-09-2010, 05:16 AM   #421
Site Supporter
Rorschach's Avatar

Join Date: Nov 2007
Location: Kuusamo, Finland
Photos: Gallery
Posts: 598
QuoteOriginally posted by rawr Quote
In other words ..., FF users like 5D2 people who work under day and night ambient light conditions with 20MB+ sensors will probably have little to fear from the current crop of 40 MB shooters like the 645D (or S2 or Mamiya). These MF bodies can deliver resolution - eg for landscapes - but they can't deliver much real world photographic usability - eg for photo-journalists or sports photogs
'real world photographic usability'...excuse me? Have you never heard of nature / landscape / macro photography as a living? The 645D likely will be a wonderfull tool for those people, especially with the (sure to arrive) sealed lenses. I can't afford a new 645D no matter the price tag, but that doesn't stop me from seeing the potential.

03-09-2010, 05:35 AM   #422
Veteran Member
falconeye's Avatar

Join Date: Jan 2008
Location: Munich, Alps, Germany
Photos: Gallery
Posts: 6,863
QuoteOriginally posted by Mistral75 Quote
Er... 10th of March 10:00 Tokyo time is 10th of March 2:00 CET...


You're right, of course.
Must have been because there was a night between them and us
03-09-2010, 05:39 AM   #423
Veteran Member
falconeye's Avatar

Join Date: Jan 2008
Location: Munich, Alps, Germany
Photos: Gallery
Posts: 6,863
QuoteOriginally posted by Mistral75 Quote
There are quite a few oddities in the description of the KAF-40000 sensor
I noticed the diagonal discrepancy. Thanks for sorting out the other mismatches. Unfortunately, even the long document doesn't include a drawing with the various exact measures.
03-09-2010, 05:48 AM   #424
Veteran Member




Join Date: Mar 2007
Location: Boston, PRofMA
Photos: Albums
Posts: 3,053
QuoteOriginally posted by rawr Quote
can't deliver much real world photographic usability - eg for photo-journalists or sports photogs
I'm puzzled by this as well. When has MF ever been used for sports, even in the film era?
The FF sized DSLRs were always faster and sports = frame rate + shutter speed...

Photojournalists and sports shooters want long range lenses as well and MF isn't known for long range lenses...

MF has always been for studio/advertising/landscape work...

03-09-2010, 06:06 AM   #425
Inactive Account




Join Date: Oct 2007
Location: Brisbane, QLD, AUS
Posts: 3,262
QuoteOriginally posted by gazonk Quote
No, that would be sad, IMHO.
I think it'd be pretty funny. Maybe this time, instead of Hermes, Calvin Klein can bail Leica out!

Think about it! The Leica M9 Underpants Edition!
03-09-2010, 06:12 AM   #426
Pentaxian
Mistral75's Avatar

Join Date: Feb 2009
Location: Paris
Posts: 2,990
QuoteOriginally posted by kenyee Quote
I'm puzzled by this as well. When has MF ever been used for sports, even in the film era?
The FF sized DSLRs were always faster and sports = frame rate + shutter speed...

Photojournalists and sports shooters want long range lenses as well and MF isn't known for long range lenses...

MF has always been for studio/advertising/landscape work...
Don't be so affirmative. Just an anecdote: in the late seventies in Nice (France), when my father brought a '65 Hasselblad to the local photo shop to get roll films and some advice, the 40-something manager almost cried. It was the exact model he used when he was younger and covered such events as bicycle races (he was very short and thin and played the "monkey" on the motorbike following the competitors) or the Cannes film festival (the body being held upside-down, arms stretched high in the air).
03-09-2010, 06:18 AM   #427
Veteran Member
falconeye's Avatar

Join Date: Jan 2008
Location: Munich, Alps, Germany
Photos: Gallery
Posts: 6,863
Kodak KAF-40000 correct figures

QuoteOriginally posted by falconeye Quote
I noticed the diagonal discrepancy.
I finally managed to sort the discrepancies out of the Kodak document.

Here are the data as they appear to be correct. The document is using wrong labels.

1. Pixel pitch: 6.000 m (turns out to be an exact figure !)
2. Image diagonal of active region: 54.78 mm (as given correctly)
3. Aspect ratio of active region: 7304:5478 or 4:3 (exact)
4. Size of active region: 43.82 x 32.87 mm (or 44x33 when rounded, matching both H4D-40 and DALSA DM40; 1.667x the surface of FF).
5. Size of area filled with pixels: 44.41 x 33.40 mm
6. Size of mechanical cover cutout: 45.76 x 35.34 mm (cf. page 33 of the long specification, incorrectly labelled "size of active region")

The data given in the Hasselblad document (44.2 mm rather than 43.8 mm) is compatible with assuming a different counting of dark and buffer pixels.

To summarize: both, Kodak KAF-40000 and DALSA DM40 match the Pentax specification (1.7x FF surface, 44x33mm, 40MP). Personally, I believe that Kodak is the more likely partner then.

Last edited by falconeye; 03-09-2010 at 06:24 AM.
03-09-2010, 06:31 AM   #428
Veteran Member
ghelary's Avatar

Join Date: Jul 2008
Location: Paris, France
Photos: Gallery
Posts: 617
QuoteOriginally posted by kenyee Quote
I'm puzzled by this as well. When has MF ever been used for sports, even in the film era?
The FF sized DSLRs were always faster and sports = frame rate + shutter speed...

Photojournalists and sports shooters want long range lenses as well and MF isn't known for long range lenses...

MF has always been for studio/advertising/landscape work...
And you can add to it, aerial and architectural photography. Disciplines that were using large format and have moved either to full frame or medium format.

We can just have a look at the Luminous Landscape site where it's full of very specific usages for a very high definition.

The digital revolution gave the false idea that APSC/FF DSLR was the "one size fit all" of photography. Now with the "expert" compact cameras (Panasonic LX3, Canon S90, G11, Sigma DP2, Ricoh...) the "EVF" cameras (Micro 4/3, Samsung NX) the rangefinders (Leica) etc... we are finding back a welcomed diversity.

03-09-2010, 06:37 AM   #429
Pentaxian
thibs's Avatar

Join Date: Jun 2007
Location: Belgium
Photos: Albums
Posts: 5,259
Thanks for sorting this out Falk.
I agree Kodak is more probable than Dalsa.

What I hope is the following: Mamiya/Phase One (and as such, Dalsa) have been very busy coming out rather quickly (I mean this is Medium Format) new sensors (different crops or more Mpix) out.

Kodak/Pentax would better be able to follow. I mean, if no successor in a year or 16 months from now, they'd be lost IMHO.
03-09-2010, 06:42 AM   #430
Veteran Member




Join Date: Jul 2008
Location: Colorado USA
Posts: 1,337
Aerial Imaging has evolved. Behold the Million Dollar Zeiss DMC

Aerial Imaging has evolved.

Behold the Million Dollar Zeiss DMC

in PDF, takes a few seconds to load...


http://www.ifp.uni-stuttgart.de/publications/phowo01/Hinz.pdf
03-09-2010, 06:50 AM   #431
Veteran Member
pcarfan's Avatar

Join Date: Sep 2007
Location: Dayton, Ohio
Photos: Gallery | Albums
Posts: 2,960
Will they announce when it will hit the shelves when they announce the camera ?, anyone think I'll be able to rent one in July for a trip to Yellowstone?

P.S: I assume no one would know these, but didn't read through the whole thread, so thought I'll just put it out there and see...thanks.
03-09-2010, 07:00 AM   #432
Pentaxian
Mistral75's Avatar

Join Date: Feb 2009
Location: Paris
Posts: 2,990
QuoteOriginally posted by pcarfan Quote
Will they announce when it will hit the shelves when they announce the camera ?, anyone think I'll be able to rent one in July for a trip to Yellowstone?
Considering the teasing being in Japanese only, I presume the initial launch will be limited to Japan and the coverage then extended to North America, Europe and more according to the success of the Japanese launch.

This is a professional device and Pentax has to build a network dedicated to professionals with the services such people expect.

So I am afraid you would need to rent your 645D in Japan for your trip to Yellowstone.
03-09-2010, 07:34 AM   #433
ogl
Pentaxian
ogl's Avatar

Join Date: Dec 2007
Location: Siberia
Photos: Gallery | Albums
Posts: 7,241
Hope we will get specs tomorrow.
03-09-2010, 07:54 AM   #434
Veteran Member
Asahiflex's Avatar

Join Date: Jan 2008
Location: Netherlands
Photos: Gallery
Posts: 2,754
QuoteOriginally posted by ogl Quote
Hope we will get specs tomorrow.
According to our local distributor, the embargo is lifted tomorrow.
03-09-2010, 08:15 AM   #435
Inactive Account




Join Date: Oct 2007
Location: Brisbane, QLD, AUS
Posts: 3,262
Nine AM it is, then.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
pentax news, pentax rumors
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
645d!!! insulinguy Pentax News and Rumors 1 10-12-2010 07:36 AM
645D now available in the UK robbiec Pentax News and Rumors 3 09-21-2010 03:01 AM
Using the 645D... HawaiianOnline Pentax Medium Format 13 03-23-2010 07:17 PM
645D or something else? GordonZA Pentax News and Rumors 7 03-09-2010 02:24 PM
Who would consider a 645D? Elton Pentax Medium Format 11 09-28-2007 07:39 PM



All times are GMT -7. The time now is 03:12 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top