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09-07-2012, 07:09 PM   #46
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QuoteOriginally posted by Caat Quote
True for you (and many others probably). However, I get the impression that Pentax wants the 645D range to expand out of the traditional MF domain of studio and landscape photography - in which case improved electronic sophistication is a must. Although having said that the long register distance means the cameras will always be big (plus the sensor size as well of course), and this is going to be a challenging factor for certain types of photography. In many ways doing a K-01 with the 645D would make more sense because removing the enormous mirror would help with weight, frame rates and durability - 60,000 actuations is a huge amount even for a MF that has a 1fps drive rate (and crucially costs that much). Obviously you loose the huge OVF and so on and so forth - but you wouldn't make your entire 645 range mirrorless, you'd have one model like that designed for the field and quick(er) response.

I believe that the mirror is not the limiting factor for the low frame rate. It's the sensor itself that has a 1.3 fps spec.

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09-08-2012, 05:28 AM   #47
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What hasn't been mentioned yet, but is very important, is the ISO range. And I mean the minimum as well as the maximum.
09-08-2012, 06:00 AM   #48
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QuoteOriginally posted by Jonathan Mac Quote
What hasn't been mentioned yet, but is very important, is the ISO range. And I mean the minimum as well as the maximum.
Well that sensor would have a max of iso800. Wich is limiting for working out of a studio. Don't know for sure if it can get below iso100, but I think iso50 is in it.
09-09-2012, 06:52 AM   #49
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There is another rumor which appears on a french website a few months ago (les Numériques) about a MF CMOS sensor made by ST electronics :
STMicroelectronics : le géant invisible

"...L'aventure photo se poursuivra sans doute sur la Photokina : "un constructeur allemand de renom", Leica, devrait y annoncer un nouveau reflex – moyen format ? – équipé d'un capteur géant, CMOS, signé ST. À suivre..."

The adventure picture is likely to continue on Photokina: "a renowned German manufacturer", Leica, is expected to announce a new SLR camera - medium format? - With a giant sensor, CMOS, signed ST. To be continued ...... "


Another source about a large cmos sensor made by ST for a "leading brand" :
http://image-sensors-world.blogspot.fr/...012/06/st-imaging-presentation.html
...Digital still camera: Design win, business award in samples stage of a high performance large image sensor for a leading brand..."


a CMOS MF sensor would be just perfect for a 645d II.

09-09-2012, 07:12 AM   #50
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There are also rumors of Hasselblad going mirrorless too... this photokina edition is going to be huge



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09-09-2012, 07:32 AM   #51
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QuoteOriginally posted by ogl Quote
New 645DII:

Trusense (formally Kodak) sensor KAF-50100 51.6MP CCD sensor in 49.1 x 36.8mm (active pixels 50.1M),
KAF-50100 - TRUESENSE 6.0-micron Full Frame CCD Platform - Technologies - Products - Full Frame CCD

645 film equivalent crop factor 1.1X (old 645D sensor was in 1.3X)
The classic 6x45 MF format (120 film, 56 × 41.5) has a diagonal of 69.70mm.

The largest digital MF have a diagonal of 67mm (crop 1.04).

The Pentax 645D (54.8mm) then has a crop of 1.27.

A scaled 50MP 6µm 645DII (61.3mm) would be crop 1.13.

That's probably what you're referring to.

And already only a 1.09 crop wrt largest digital MF.

Does the new Pentax 645D 25mm have a sufficiently large image circle? I never saw it specified by Pentax ... If so, it should be a full 70mm, shouldn't it (I see this claimed in the lens review section -- but did anybody confirm)?

Last edited by falconeye; 09-09-2012 at 07:51 AM.
09-09-2012, 08:04 AM   #52
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QuoteOriginally posted by falconeye Quote
Does the new Pentax 645D 25mm have a sufficiently large image circle? I never saw it specified by Pentax ... If so, it should be a full 70mm, shouldn't it (I see this claimed in the lens review section -- but did anybody confirm)?
The Japanese version of the 25 (and the older worldwide version) was intended to be both a 645D and a 645 film lens.
09-09-2012, 09:21 PM   #53
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QuoteOriginally posted by leeonmaui Quote
Nikon D800 or D800E is a serious camera to be sure and the lens line up of Nikon is vast, when you start adding lens to the system, the price quickly puts you into the 645D system territory. In terms of cost there is little gain to be had.
Good point! I suppose the only drawback is the depreciation of the body (the 645D has farther to fall!). Most people seem to disregard these very relevant facts.

09-10-2012, 12:54 AM   #54
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QuoteOriginally posted by RuiC Quote
I believe that the mirror is not the limiting factor for the low frame rate. It's the sensor itself that has a 1.3 fps spec.
Ah OK.
09-11-2012, 04:35 AM   #55
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Part of the press release for the new MF lens (with SR built into the lens):
“The new HD PENTAX D FA 645 90mm lens was designed exclusively for our 645D medium-format SLR cameras and it marks an important expansion in our medium-format lens lineup,” explains John Carlson, Sr. Manager of Sales and Marketing, PENTAX. “This versatile medium telephoto lens is ideal not only for portrait and macro photography, but scenic and still life photography as well.”

It would appear from this text that there are/will be more than one digital MF camera from Pentax and yet nothing has been mentioned pre Photokina.
09-11-2012, 04:45 AM   #56
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I think at least 2 new cameras will be till New Year.
09-11-2012, 04:48 AM   #57
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QuoteOriginally posted by bossa Quote
Part of the press release for the new MF lens (with SR built into the lens):
“The new HD PENTAX D FA 645 90mm lens was designed exclusively for our 645D medium-format SLR cameras and it marks an important expansion in our medium-format lens lineup,” explains John Carlson, Sr. Manager of Sales and Marketing, PENTAX. “This versatile medium telephoto lens is ideal not only for portrait and macro photography, but scenic and still life photography as well.”

It would appear from this text that there are/will be more than one digital MF camera from Pentax and yet nothing has been mentioned pre Photokina.
SLR, not DSLR. Meaning that it will be backward compatible to be used on 645 bodies of the film era as well, nothing more...

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09-11-2012, 04:52 AM   #58
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QuoteOriginally posted by Ishpuini Quote
SLR, not DSLR. Meaning that it will be backward compatible to be used on 645 bodies of the film era as well, nothing more...

Wim
But it says 645D, not 645, so that still means DSLR. On the other hand when they say cameras it could just mean all of the original 645Ds that have been sold rather than referring to two different models of 645D.
09-11-2012, 04:55 AM   #59
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QuoteOriginally posted by Paul Ewins Quote
But it says 645D, not 645, so that still means DSLR. On the other hand when they say cameras it could just mean all of the original 645Ds that have been sold rather than referring to two different models of 645D.
True, I read over that first D. Anyway, I wouldn't read too much in these comments. As much as I'm hoping for a new 645D, perhaps enabling me to get a second hand first generation 645D one day...

Wim
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