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normhead · 03-13-2013, 07:50 AM

Originally posted by NickLarsson

Do you know for which lens is this patent ?

I'd like to know that too...if it's not too much trouble...

**maxfield_photo** · 03-13-2013, 08:24 AM

Originally posted by Ponq

So sorry for my late post.

It seems that Hirakawa-san is working for Tamron now.
I found Hirakawa-san's name on Japanese Unexamined Patent Application Publication #2013-45039.
This was issued by Tamron.
It means .....

It's a shame that Hoya let him go, but good to know that he's still working in the photo optics business. 'A man goes where he is appreciated' they say. Last I heard though he was still a consultant for Pentax, meaning they could still employ his services on a per project basis. Either way, Tamron makes K-mount lenses, so it's not hard to imagine that some day soon we may find a new piece of Hirakawa glass attached to our cameras.

Ponq · 03-13-2013, 08:44 AM

This patent describes how to manage a wide aperture open, wide-angle<=>standard zooming and built-in S/R at the same time.

Hmmm, it seems A007(24-70mm F2.8).
Unfortunately, no Pentax-mount lens is planned.
Tamron -24-70mm F/2.8(Model A007)

**boriscleto** · 03-13-2013, 08:48 AM

Originally posted by Ponq

This patent describes how to manage a wide aperture open, wide-angle<=>standard zooming and built-in S/R at the same time.

Hmmm, it seems A007(24-70mm F2.8).
Unfortunately, no Pentax-mount lens is planned.
Tamron -24-70mm F/2.8(Model A007)

Until it shows up as the D FA 24-70/2.8 for $200 more than the Tamron version...

Docrwm · 03-13-2013, 09:04 AM

Originally posted by boriscleto

Until it shows up as the D FA 24-70/2.8 for $200 more than the Tamron version...

The cost of loosing Hirakawa-san.

the swede · 03-13-2013, 12:41 PM

Ahh, the Tamron 24-70 VC??? Great lens... very fat... but doing very well against Canikon 24-70

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03-13-2013, 07:50 AM	#46
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Originally posted by NickLarsson Do you know for which lens is this patent ? I'd like to know that too...if it's not too much trouble...

03-13-2013, 08:24 AM	#47
maxfield_photo Site Supporter Join Date: Mar 2011 Location: Cincinnati, OH Posts: 1,216	Originally posted by Ponq So sorry for my late post. It seems that Hirakawa-san is working for Tamron now. I found Hirakawa-san's name on Japanese Unexamined Patent Application Publication #2013-45039. This was issued by Tamron. It means ..... It's a shame that Hoya let him go, but good to know that he's still working in the photo optics business. 'A man goes where he is appreciated' they say. Last I heard though he was still a consultant for Pentax, meaning they could still employ his services on a per project basis. Either way, Tamron makes K-mount lenses, so it's not hard to imagine that some day soon we may find a new piece of Hirakawa glass attached to our cameras.

03-13-2013, 08:44 AM	#48
Ponq New Member Join Date: Mar 2013 Posts: 4	This patent describes how to manage a wide aperture open, wide-angle<=>standard zooming and built-in S/R at the same time. Hmmm, it seems A007(24-70mm F2.8). Unfortunately, no Pentax-mount lens is planned. Tamron -24-70mm F/2.8(Model A007)

03-13-2013, 08:48 AM	#49
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,477	Originally posted by Ponq This patent describes how to manage a wide aperture open, wide-angle<=>standard zooming and built-in S/R at the same time. Hmmm, it seems A007(24-70mm F2.8). Unfortunately, no Pentax-mount lens is planned. Tamron -24-70mm F/2.8(Model A007) Until it shows up as the D FA 24-70/2.8 for $200 more than the Tamron version...

03-13-2013, 09:04 AM	#50
Docrwm Veteran Member Join Date: Sep 2010 Location: Somewhere in the Southern US Photos: Gallery \| Albums Posts: 12,285	Originally posted by boriscleto Until it shows up as the D FA 24-70/2.8 for $200 more than the Tamron version... The cost of loosing Hirakawa-san.

03-13-2013, 12:41 PM	#51
the swede Inactive Account Join Date: Aug 2009 Posts: 2,310	Ahh, the Tamron 24-70 VC??? Great lens... very fat... but doing very well against Canikon 24-70

Hirakawa Jun back to Pentax/Ricoh?

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