Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-20-2014, 01:54 PM   #1
Loyal Site Supporter




Join Date: Aug 2011
Photos: Albums
Posts: 1,862
Pentax K-S1 = a new GR/GXR + an adapter?

The more I look at the picture of Pentax K-S1, the more I feel like it is a smaller mirror less camera inserted in an adapter consists of lens mount (to adjust K lens) + mirror box + flash + OVF.
Maybe you will be offered an option to take the adapter off, put a smaller lens with new mount and use it as compact mirror less came, and put the adapter on, you can use it with K mount lenses as an DSLR!
Maybe that is the "totally new product" pentax was talking about!

Attached Images
 
08-20-2014, 01:57 PM   #2
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 43,182
Looks to me like a perfectly normal K-mount mirror box They just stuck a mirrorless-like grip on there. It actually looks fairly attractive in white!

Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)



PentaxForums.com's high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

08-20-2014, 01:59 PM   #3
Pentaxian




Join Date: Apr 2007
Location: Romania
Posts: 9,338
Nope, it's a regular DSLR.
I think Ricoh found out that modular things don't work/sell.
08-20-2014, 02:00 PM   #4
Senior Member




Join Date: Jul 2013
Location: Alice Springs
Posts: 228
In a perfect world, that would be an amazing idea. Unfortunately, as is know, the mirror placement and alignment is critical for both phase detection and visual focusing, and I find it extremely difficult to believe Pentax engineers could develop a foolproof removal-reattachment mechanism.

08-20-2014, 02:08 PM   #5
Loyal Site Supporter




Join Date: Aug 2011
Photos: Albums
Posts: 1,862
Original Poster
QuoteOriginally posted by Joshua A Quote
it extremely difficult to believe Pentax engineers could develop a foolproof removal-reattachment mechanism
Agree!

Maybe the idea could be applied on a new K-01 camera that accept K lenses, and taking the adapter off, you can use smaller primes.

So many times, I wish my camera could be smaller when I have da ltd lenses mounted, and wish my K-01 could have a bigger grip and viewfinder to work with a tele lens or a heavier zoom.
08-20-2014, 02:17 PM   #6
Veteran Member




Join Date: Feb 2012
Posts: 456
i will not rule out the possibility that this is a mirrorless camera, even though it appears to be a DSLR.
08-20-2014, 02:20 PM   #7
Loyal Site Supporter




Join Date: Aug 2011
Photos: Albums
Posts: 1,862
Original Poster
The viewfinder does look like an OVF, so I believe it is more likely a DSLR.
more information will come soon.
08-20-2014, 02:23 PM   #8
Pentaxian




Join Date: Apr 2007
Location: Romania
Posts: 9,338
QuoteOriginally posted by DominicVII Quote
i will not rule out the possibility that this is a mirrorless camera, even though it appears to be a DSLR.
I would. The cat's out of the bag.

08-20-2014, 02:33 PM   #9
Pentaxian
Na Horuk's Avatar

Join Date: Feb 2012
Location: Slovenia, probably
Photos: Gallery | Albums
Posts: 10,867
QuoteOriginally posted by grahame Quote
So many times, I wish my camera could be smaller when I have da ltd lenses mounted
:O You think DA 21mm ltd, DA 40mm ltd, and DA 70mm ltd are too big? Pretty sure the DA 40mm XS is the thinnest AF lens for this format ever made for any brand lol
08-20-2014, 02:39 PM   #10
Loyal Site Supporter




Join Date: Aug 2011
Photos: Albums
Posts: 1,862
Original Poster
QuoteOriginally posted by Na Horuk Quote
:O You think DA 21mm ltd, DA 40mm ltd, and DA 70mm ltd are too big?
No, I think the camera is too big for these small lenses.
and when I need longer/heavier lenses, I want a bigger camera with bigger grip and viewfinder.

---------- Post added 08-20-14 at 04:40 PM ----------

QuoteOriginally posted by Na Horuk Quote
:O You think DA 21mm ltd, DA 40mm ltd, and DA 70mm ltd are too big?
No, I think the camera is too big for these small lenses.
and when I need longer/heavier lenses, I want a bigger camera with bigger grip and viewfinder.
08-20-2014, 02:49 PM - 1 Like   #11
Pentaxian
Mistral75's Avatar

Join Date: Feb 2009
Location: Paris
Posts: 3,003
QuoteOriginally posted by grahame Quote
The more I look at the picture of Pentax K-S1, the more I feel like it is a smaller mirror less camera inserted in an adapter consists of lens mount (to adjust K lens) + mirror box + flash + OVF.
Maybe you will be offered an option to take the adapter off, put a smaller lens with new mount and use it as compact mirror less came, and put the adapter on, you can use it with K mount lenses as an DSLR!
Maybe that is the "totally new product" pentax was talking about!
A prototype system close to what you are describing was developed by Pentax Ricoh Imaging R&D department in 2012 and early 2013 under the name of "Pentaflex" and reported back here. This was a modular camera with:

- a mirrorless, viewfinderless body with a new mount, totally electronic, with a large diameter and a short register, then called 'Ace' mount (as being superior to K-King and Q-Queen)
- an electronic viewfinder one could plug on top of the body
- alternatively, the 'Pentaflex' module one could plug on the front and top of the body, comprising a K mount, a mirror box (partly 'penetrating inside' the Ace-mount), its mirror, an optical viewfinder, a dedicated phase-detection autofocus system, an actuator to settle the aperture on K-mount lenses (with full retrocompatibility with K and M lenses) and an AF motor
- two more simple K-to-Ace adapters, both with SDM/DC contacts, one with AF motor, one without (the one without AF motor being targeted to SDM, DC and non-AF lenses), both without optical viewfinder but compatible with the electronic one and including a simple, mechanical aperture coupling (think K-to-Q adapter)
- dedicated Ace-mount lenses with electronic aperture, focus-by-wire and stepper motors.

Then Ricoh people took the power within Pentax Ricoh Imaging, the launch of K50/K500 was slightly postponed to make way for that of the Ricoh GR (which was initially branded Pentax and eventually Ricoh), Pentax Ricoh Imaging was renamed Ricoh Imaging and, from mid-April 2013 on, I never heard of the Pentaflex project any more except, indirectly, in July 2013 from asahi man here:
QuoteOriginally posted by asahi man Quote
Not this year.
But it looks like a classic dslr in K-3 Style and K mount and later a mirrorless with a new mount,but compatible with K SDM mount by converter
But it is not sure,the second camera
.
As Kunzite points out,
QuoteOriginally posted by Kunzite Quote
I think Ricoh found out that modular things don't work/sell.
08-20-2014, 02:55 PM   #12
Loyal Site Supporter




Join Date: Aug 2011
Photos: Albums
Posts: 1,862
Original Poster
I heard of "Ace-mount", but didn't know the rest of the story/history.
Maybe like Joshua said, producing such a system allowing perfect alignment is too difficult and expensive.
Thanks for posting!
08-20-2014, 03:12 PM   #13
Pentaxian
Mistral75's Avatar

Join Date: Feb 2009
Location: Paris
Posts: 3,003
QuoteOriginally posted by grahame Quote
I heard of "Ace-mount", but didn't know the rest of the story/history.
Maybe like Joshua said, producing such a system allowing perfect alignment is too difficult and expensive.
Thanks for posting!
You're welcome.

You don't need a perfect z-axis alignment when the camera's software allows to calibrate the phase-detection autofocus of the Pentaflex module with the assistance of the contrast-detection autofocus of the body, this with an automated routine.

You still need to ensure a perfect parallelism of the two flanges of the Pentaflex module (to avoid any tilt) but the situation is the same with any and all adapters.
08-20-2014, 03:25 PM   #14
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,457
QuoteOriginally posted by Mistral75 Quote
A prototype system close to what you are describing was developed by Pentax Ricoh Imaging R&D department in 2012 and early 2013 under the name of "Pentaflex" and reported back here.
Oh, yeah. Wasn't it you that posted this originally on the French PentaxOne forum? I read the original and the account sounded a bit fanciful at the time.

http://www.pentaxone.fr/component/option,com_smf/Itemid,28/topic,17597.msg1849956/#msg1849956


Steve

Last edited by stevebrot; 08-20-2014 at 03:30 PM.
08-20-2014, 03:33 PM   #15
Pentaxian




Join Date: Feb 2010
Location: East Bay Area
Photos: Gallery
Posts: 787
WR would be difficult with modular design.
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!
21mm, 40mm, adapter, camera, da, da 21mm, grip, idea, k-s1, lens, lenses, ltd, mirror, pentax, pentax k-s1, pentax news, pentax rumors, ricoh, viewfinder
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Q-S1: a new production run of Q7 Marktax Pentax News and Rumors 33 08-10-2014 03:10 AM
New lens for the K-5IIs or new GR? Piscator Ricoh GR 18 01-04-2014 07:35 PM
Rumors about a new Ricoh GXR camera surface online Cynog Ap Brychan Pentax News and Rumors 70 08-01-2013 06:57 AM
Can I use an old SMC PENTAX- M 1:1.7 50mm lense on a brand new K-01 or a K-5? jjuanmartin Troubleshooting and Beginner Help 5 12-23-2012 04:38 AM
personal test and evaluation: Vivitar S1 90/2.5 + FD/K adapter Pentaxor Pentax SLR Lens Discussion 6 07-11-2010 07:59 AM



All times are GMT -7. The time now is 10:32 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