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falconeye · 09-25-2014, 06:55 AM

Originally posted by thibs

What about a Pentax/ricoh patent on that btw, Falk?

I guess they have their floating sensor drive patented. And the additional applications it allows, rotation (horizon control), astro tracking, AA simulation etc. But I didn't check. The electromagnetic drive with hall sensor feedback loop is a patent, I've read it.

thibs · 09-25-2014, 07:29 AM

Right. Thanks.
It was said (and I'm careful, really, that's why I used 'said') that years ago, Pentax actually had patents related to in lens stabilization although they never produced it.
I never found a thing and I believe this is nothing but thin air but I'm still curious.

Franc · 09-25-2014, 07:33 AM

Originally posted by thibs

Right. Thanks.
It was said (and I'm careful, really, that's why I used 'said') that years ago, Pentax actually had patents related to in lens stabilization although they never produced it.
I never found a thing and I believe this is nothing but thin air but I'm still curious.

they do/did, see the latest 645 lenses

ElJamoquio · 09-25-2014, 08:02 AM

They don't need a patent to produce a lens; of course it's likely that they have a patent if they produce some new technology.

Mistral75 · 09-25-2014, 08:05 AM

Originally posted by ElJamoquio

They don't need a patent to produce a lens; of course it's likely that they have a patent if they produce some new technology.

Or at least a patent licence from somebody else.

thibs · 09-25-2014, 12:31 PM

Originally posted by Franc

they do/did, see the latest 645 lenses

$Sure but those rumours were about the FA line, which supposedly was, at first, destined to be both stabilized and WRed.
Well, that's what was said.

**jbinpg** · 11-25-2016, 05:33 PM

Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be releasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth.

Last edited by jbinpg; 11-25-2016 at 09:01 PM.

timautin · 11-25-2016, 06:46 PM

That could explain the firmware update for the K3

mee · 11-25-2016, 07:10 PM

Originally posted by jbinpg

Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be teleasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth.

That would be fantabulous if true.

normhead · 11-25-2016, 07:16 PM

Originally posted by jbinpg

Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be teleasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth.

But will the 150-600 work with the 1.4 TC?

Zygonyx · 11-25-2016, 10:02 PM

Why not?
As far as electric connectivity's hardstuff is concerned, K-AF4 didn't change the game.

totsmuyco · 11-25-2016, 11:29 PM

Originally posted by jbinpg

Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be releasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth.

I still hope they'll make it in the KAF3 mount. I'd like to have one and use it on my K-5II.

beholder3 · 11-26-2016, 01:03 AM

Originally posted by jbinpg

Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be releasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth.

Same low reliability rumors (that is not critisizing you) were circulated by some German dealers three weeks ago.

Sigmas lens sales probably took just the same nose dive as Nikon's and Canon's.
Sigma simply can not afford their old arrogance any longer. They need every potential buyer they can get.
What do you think why every small beginner lens company is offering their lenses in K mount / KAF3? Because it is not feasible?

So even while the sources are not really good ones, expecting more consumer lenses (those with the broadest appeal to soccer moms) from third parties makes sense. Don't expect primes. Mommy wants to zoom.
The Sigma 24-105 was mentioned to be "evaluated" as well btw.

RonHendriks1966 · 11-26-2016, 01:15 AM

Originally posted by normhead

But will the 150-600 work with the 1.4 TC?

That would maybe be a problem. The result is 1.4 x 6.3 = f8.8 So maybe there will be no auto focus in the camera working.

Zygonyx · 11-26-2016, 01:18 AM

As today's Canikon TC's don't work with such a zoom ... and don't either with Bigma

Please stop BS

11-25-2016, 10:02 PM	#71
Zygonyx Pentaxian Join Date: Jun 2011 Location: Ile de France Posts: 4,023	Why not? As far as electric connectivity's hardstuff is concerned, K-AF4 didn't change the game. Last edited by Zygonyx; 11-25-2016 at 10:47 PM.

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09-25-2014, 06:55 AM	#61
falconeye Veteran Member Join Date: Jan 2008 Location: Munich, Alps, Germany Photos: Gallery Posts: 6,871	Originally posted by thibs What about a Pentax/ricoh patent on that btw, Falk? I guess they have their floating sensor drive patented. And the additional applications it allows, rotation (horizon control), astro tracking, AA simulation etc. But I didn't check. The electromagnetic drive with hall sensor feedback loop is a patent, I've read it.

09-25-2014, 07:29 AM	#62
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,000	Right. Thanks. It was said (and I'm careful, really, that's why I used 'said') that years ago, Pentax actually had patents related to in lens stabilization although they never produced it. I never found a thing and I believe this is nothing but thin air but I'm still curious.

09-25-2014, 07:33 AM	#63
Franc Pentaxian Join Date: Jan 2010 Location: Hoevelaken Photos: Gallery Posts: 1,209	Originally posted by thibs Right. Thanks. It was said (and I'm careful, really, that's why I used 'said') that years ago, Pentax actually had patents related to in lens stabilization although they never produced it. I never found a thing and I believe this is nothing but thin air but I'm still curious. they do/did, see the latest 645 lenses

09-25-2014, 08:02 AM	#64
ElJamoquio Veteran Member Join Date: Feb 2011 Posts: 4,873	They don't need a patent to produce a lens; of course it's likely that they have a patent if they produce some new technology.

09-25-2014, 08:05 AM	#65
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,416	Originally posted by ElJamoquio They don't need a patent to produce a lens; of course it's likely that they have a patent if they produce some new technology. Or at least a patent licence from somebody else.

09-25-2014, 12:31 PM	#66
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,000	Originally posted by Franc they do/did, see the latest 645 lenses $Sure but those rumours were about the FA line, which supposedly was, at first, destined to be both stabilized and WRed. Well, that's what was said.

11-25-2016, 05:33 PM	#67
jbinpg Site Supporter Join Date: Mar 2008 Location: Prince George, BC Photos: Gallery \| Albums Posts: 3,525	Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be releasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth. Last edited by jbinpg; 11-25-2016 at 09:01 PM.

11-25-2016, 06:46 PM	#68
timautin Pentaxian Join Date: Feb 2015 Posts: 345	That could explain the firmware update for the K3

11-25-2016, 07:10 PM	#69
mee Veteran Member Join Date: May 2010 Posts: 7,403	Originally posted by jbinpg Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be teleasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth. That would be fantabulous if true.

11-25-2016, 07:16 PM	#70
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,434	Originally posted by jbinpg Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be teleasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth. But will the 150-600 work with the 1.4 TC?

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11-25-2016, 11:29 PM	#72
totsmuyco Pentaxian Join Date: Aug 2013 Location: Iloilo City Photos: Gallery Posts: 2,262	Originally posted by jbinpg Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be releasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth. I still hope they'll make it in the KAF3 mount. I'd like to have one and use it on my K-5II.

11-26-2016, 01:03 AM	#73
beholder3 Pentaxian Join Date: Dec 2011 Posts: 3,109	Originally posted by jbinpg Hi, folks. Bumping this old thread for a reason. I was in my fave Pentax dealer in town today talking to the camera department manager. He mentioned that because of the new KAF4 mount, Sigma was going to be releasing a K mount version of their 150-600 zoom "soon". Take it for what it is worth. Same low reliability rumors (that is not critisizing you) were circulated by some German dealers three weeks ago. Sigmas lens sales probably took just the same nose dive as Nikon's and Canon's. Sigma simply can not afford their old arrogance any longer. They need every potential buyer they can get. What do you think why every small beginner lens company is offering their lenses in K mount / KAF3? Because it is not feasible? So even while the sources are not really good ones, expecting more consumer lenses (those with the broadest appeal to soccer moms) from third parties makes sense. Don't expect primes. Mommy wants to zoom. The Sigma 24-105 was mentioned to be "evaluated" as well btw.

11-26-2016, 01:15 AM	#74
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675	Originally posted by normhead But will the 150-600 work with the 1.4 TC? That would maybe be a problem. The result is 1.4 x 6.3 = f8.8 So maybe there will be no auto focus in the camera working.

11-26-2016, 01:18 AM	#75
Zygonyx Pentaxian Join Date: Jun 2011 Location: Ile de France Posts: 4,023	As today's Canikon TC's don't work with such a zoom ... and don't either with Bigma Please stop BS

Sigma 150-600 5-6.3..... no K mount

Win a Pentax Limited lens and more - enter in our 2023 end of year giveaway!