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Friday, January 27, 2012

Rumour or Not: Additional Information about the K-01 and the New 40mm XS Pancake Lens and System

See what Photo Rumors reports, I guess that they have a source to the insider information.

Quoted and my own remarks, one by one as follows:-
  • The camera is designed by a famous designer
Well, are those designer chairs or whatsoever always looking nice? :-o
  • The new 40mm f/2.8 pancake lens is less than 1 centimeter thick and my understanding is that it will work only with the new K-01 body
It seems that the back focus register distance of the new XS lens(es) has been shorten despite that they might still use the K-mount, just like what Canon did years ago for the creation of EF-S lenses based on the original EF mount. Btw, if the new 40/2.8 Pancake is 1 cm thick, a quick comparison to the existing DA40/2.8 Limited of which the thickness is in 1.5 cm reveals that the back focus distance could be decreased by 5mm, only, which means that the new back focus distance of the "new" lens system in K-mount variant is in about 40 mm (roughly), which is not really short anyway when compared to other existing mirrorless systems on the market, but yet shorter than the original EF mount's, say for example, which should be able to adapt most of the old SLR lenses of different 135 systems.
  • The Pentax K-01 and the 40mm lens are covered with some kind of rubber-like material for better grip
Not much meaningful and important for this point, frankly.
  • The K-01 will have an external mic output for video recording
The K-7/K-5 had that. The most important things instead about video recording IMO should be that if AF (or at least the ability to re-focusing) will be available during video recording, and/or, the ability for manual Av/Tv/ISO adjustments for video recording, which the "latest" Pentax K-5 body lacks both or even the Pentax Q still lacks the former.

Comments (11)

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It's Marc Newson - really cool designer http://www.marc-newson.com/ProjectCategorys.aspx?...
1 reply · active 687 weeks ago
How come you know?
He is the designer of TALBY PHONE in Japan http://www.marc-newson.com/MasterImageLibrary/ima...

Pay attention here - http://digicame-info.com/2012/01/aps-ck-01.html

デザインはauのtalbyのデザイナーの手による
It seems that the new 40mm will only have a recessed lens design, the "K-mount" to film distance will have to be the same if the new camera is to be compatible with the existing K-mount lens. Small rangefinder lens (eg. M39, Leica M or Contax G) may be able to stuff inside the mount through an adaptor but unlikely to be able to work with lens from other legacy SLR systems like the Canon FD, Minolta MD, Rollei or Contax CY.
1 reply · active 687 weeks ago
Not exactly, the "new" K-mount could keep the same flange to "film" distance, i.e., 45.46mm but the new lens' optical design could have a shorten back focus register distance. All in all, it is a recessed lens design as you've mentioned but the compatibility and adaptability with old SLR film lenses (K mount or not) should not be affected.
The current K-mount is already designed for APS-C, so I don't see how a measly 5mm would make the XS incompatible with previous bodies. I think something else is at work other than reducing the registration distance by such a trivial amount. What if it's the same 40mm DA, but it's fixed and the body does the focusing? That could account for the reduced size.
2 replies · active 687 weeks ago
5mm is a big difference which makes focusing just impossible and becomes totally out of range.
But that's not the issue. The only way the XS would be incompatible with older bodies is if 1) the film plane moves for some reason, 2) the rear element extends into the body to interfere with the mirror (and I don't think 5mm is enough to do that) , or 3) it's unable to focus for some reason.
don't forget the af may be completely different design to keep it silent for video shooters, and even a few millimetres recessed into the body could make the newer lens within striking range of the mirror on the old bodies... so it would not surprise me to see the xs lenses work only on the k-01....
1 reply · active 687 weeks ago
in fact, looking at my 352.4 at this moment, it occurs to me that the stop down lever is not needed in an evil cam due to the fact that the evf/live view doesn't need to open wide for optical viewing like an slr, and so the aperture blades may have a stepless electronic control...
I really do not think Flange distance is that much of a concern, considering Pentax's knack for miniature lenses. If we take this lens mounted to the expected size of the ML (still not calling it the K-01, as that is stupid and shows Pentax has not idea how to name cameras) it probably is no thicker than a NEX with a similar lens.

Besides, how small should a camera like this should be. It will not fit in your pocket, and if it is a certain thinness, it may be difficult to hold.

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