The Pentax DA 560/5.6 will indeed be collapsible...I think...

**Pål Jensen** · 08-31-2012, 07:56 AM

Originally posted by RonHendriks1966

It never will be 400mm/f4! The frontlens is never big enough to catch the fotons. .

Wouldn't a 400/4 and a 560/5.6 have the same front lens diametre?

Mistral75 · 08-31-2012, 08:05 AM

Originally posted by RonHendriks1966

It never will be 400mm/f4! The front lens is never big enough to catch the photons. But maybe it will be two lengths, but then 400mm/f5.6 or the longer one 800mm/f8.

400mm f/4 or 560mm f/5.6 require the same front lens, with a diameter greater than 100mm.

RXrenesis8 · 08-31-2012, 08:15 AM

Originally posted by Adam

I could be wrong, but I think the last (shortest) of the three lens photos was photoshopped by a member.

Yup, just some photoshop speculation on my part.

Quicksand · 08-31-2012, 08:24 AM

I think it's going to collapse down to an 85mm f/0.85

philbaum · 08-31-2012, 08:26 AM

Originally posted by seventhdr

Well it could be collapsable or it could be a dual focal length lens. A 400mm f4 or a 560mm f5.6.

And what are the two switches on the side of the lens. It could be an SDM lens in which case one switch is the AF/MF switch but what could the other switch be for?

Regards

Chris

Perhaps to limit focus travel, like in a macro lens - just a guess. Maybe its to switch between SDM drive and DC drive

froeschle · 08-31-2012, 08:47 AM

Originally posted by Pål Jensen

A recently filed Pentax patent [...]

See comment on 2011-022280

Adam · 08-31-2012, 11:56 AM

Originally posted by Pål Jensen

I doubt the mock-ups don't reflect the real thing. If so, they wouldn't have shown it...

The CP+ rep said that this was a very, very early mockup (there was no glass in it either), but I guess we'll have to wait and see!

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

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

RonHendriks1966 · 08-31-2012, 02:33 PM

Originally posted by Pål Jensen

Wouldn't a 400/4 and a 560/5.6 have the same front lens diametre?

Yes, probably

Originally posted by Mistral75

400mm f/4 or 560mm f/5.6 require the same front lens, with a diameter greater than 100mm.

Yes probably.

But the tube gets thinner end thus giving less light.

Originally posted by RXrenesis8

Yup, just some photoshop speculation on my part.

Okay, so just a photoshop thing, I missed that. But then it realley only is the hood going out.

schufosi777 · 08-31-2012, 07:32 PM - **1 Like**

Pentax DA 560mm f/5.6 lens to be announced at Photokina | Photo Rumors

philbaum · 08-31-2012, 11:13 PM

Originally posted by schufosi777

Pentax DA 560mm f/5.6 lens to be announced at Photokina | Photo Rumors

Thats good news, i hope it pans out.

**Pål Jensen** · 09-01-2012, 11:16 AM

Originally posted by schufosi777

Pentax DA 560mm f/5.6 lens to be announced at Photokina | Photo Rumors

They probably read it here....

RonHendriks1966 · 09-02-2012, 04:26 AM

Originally posted by Pål Jensen

They probably read it here....

They do read overhere and repost, since they did that last october with my post about my visit to the Salon the la Photo in Paris.

Blue · 09-06-2012, 11:46 AM

Originally posted by LamyTax

Those mockups were not real. If so, Pentax could have released the lens by now

.

Well, they had working prototypes of the DA* 1.4x TC and some members even used on at the show. However, it has never hit the market.

Blue · 09-06-2012, 11:48 AM

Originally posted by Pål Jensen

A recently filed Pentax patent makes this highly likely and explains the photo below. The english is badly translated but the meaning is clear.

"Pentax applied for a patent about a division-type lens body tube. It is hard to carry the super tele-photo lens, but it will be easy to carry it if degradable.

. . .

Since Pentax now holds the Patent on the degradable lens, 1) does this mean companies with crap lenses have to pay royalties; and 2) does this patent retroactively cover the SDM.

08-31-2012, 07:32 PM - 1 Like	#24
schufosi777 Senior Member Join Date: Dec 2007 Location: Kitakyushu Posts: 186	560mm at Photokina Pentax DA 560mm f/5.6 lens to be announced at Photokina \| Photo Rumors

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pentax K-5 + YN 560 II X-Sync	striker_	Flashes, Lighting, and Studio	2	08-03-2012 11:47 AM
Collapsible backgrounds?	GabrielDiaz	Photographic Technique	8	07-17-2012 04:03 AM
Pentax 540 and Yongnuo 560 - if they flash together?	pich	Flashes, Lighting, and Studio	3	10-29-2011 04:49 AM
yn-560 flash +pentax k-5	Purusam	Pentax K-5 & K-5 II	2	03-12-2011 05:02 PM
gary fong collapsible lightsphere instructions	bluebronco	Pentax Camera and Field Accessories	2	08-14-2010 05:52 PM

08-31-2012, 07:56 AM	#16
Pål Jensen Site Supporter Join Date: Dec 2007 Location: Norway Photos: Albums Posts: 4,371 Original Poster	Originally posted by RonHendriks1966 It never will be 400mm/f4! The frontlens is never big enough to catch the fotons. . Wouldn't a 400/4 and a 560/5.6 have the same front lens diametre?

08-31-2012, 08:05 AM	#17
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527	Originally posted by RonHendriks1966 It never will be 400mm/f4! The front lens is never big enough to catch the photons. But maybe it will be two lengths, but then 400mm/f5.6 or the longer one 800mm/f8. 400mm f/4 or 560mm f/5.6 require the same front lens, with a diameter greater than 100mm.

08-31-2012, 08:15 AM	#18
RXrenesis8 Veteran Member Join Date: Jan 2011 Location: Orlando, FL (USA) Photos: Gallery \| Albums Posts: 523	Originally posted by Adam I could be wrong, but I think the last (shortest) of the three lens photos was photoshopped by a member. Yup, just some photoshop speculation on my part.

08-31-2012, 08:24 AM	#19
Quicksand Pentaxian Join Date: Apr 2008 Location: Central Ohio (formerly SF Bay Area) Posts: 1,519	I think it's going to collapse down to an 85mm f/0.85

08-31-2012, 08:26 AM	#20
philbaum Veteran Member Join Date: Oct 2007 Location: Port Townsend, Washington State, USA Posts: 3,659	Originally posted by seventhdr Well it could be collapsable or it could be a dual focal length lens. A 400mm f4 or a 560mm f5.6. And what are the two switches on the side of the lens. It could be an SDM lens in which case one switch is the AF/MF switch but what could the other switch be for? Regards Chris Perhaps to limit focus travel, like in a macro lens - just a guess. Maybe its to switch between SDM drive and DC drive

08-31-2012, 08:47 AM	#21
froeschle Veteran Member Join Date: Sep 2007 Location: Germany Photos: Gallery Posts: 552	Originally posted by Pål Jensen A recently filed Pentax patent [...] See comment on 2011-022280

08-31-2012, 11:56 AM	#22
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	Originally posted by Pål Jensen I doubt the mock-ups don't reflect the real thing. If so, they wouldn't have shown it... The CP+ rep said that this was a very, very early mockup (there was no glass in it either), but I guess we'll have to wait and see! Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

08-31-2012, 02:33 PM	#23
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675	Originally posted by Pål Jensen Wouldn't a 400/4 and a 560/5.6 have the same front lens diametre? Yes, probably Originally posted by Mistral75 400mm f/4 or 560mm f/5.6 require the same front lens, with a diameter greater than 100mm. Yes probably. But the tube gets thinner end thus giving less light. Originally posted by RXrenesis8 Yup, just some photoshop speculation on my part. Okay, so just a photoshop thing, I missed that. But then it realley only is the hood going out.

08-31-2012, 11:13 PM	#25
philbaum Veteran Member Join Date: Oct 2007 Location: Port Townsend, Washington State, USA Posts: 3,659	Originally posted by schufosi777 Pentax DA 560mm f/5.6 lens to be announced at Photokina \| Photo Rumors Thats good news, i hope it pans out.

09-01-2012, 11:16 AM	#26
Pål Jensen Site Supporter Join Date: Dec 2007 Location: Norway Photos: Albums Posts: 4,371 Original Poster	Originally posted by schufosi777 Pentax DA 560mm f/5.6 lens to be announced at Photokina \| Photo Rumors They probably read it here....

09-02-2012, 04:26 AM	#27
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675	Originally posted by Pål Jensen They probably read it here.... They do read overhere and repost, since they did that last october with my post about my visit to the Salon the la Photo in Paris.

09-06-2012, 11:46 AM	#28
Blue Moderator Site Supporter Join Date: Jun 2008 Location: Florida Hill Country Photos: Gallery \| Albums Posts: 17,377	Originally posted by LamyTax Those mockups were not real. If so, Pentax could have released the lens by now . Well, they had working prototypes of the DA* 1.4x TC and some members even used on at the show. However, it has never hit the market.

09-06-2012, 11:48 AM	#29
Blue Moderator Site Supporter Join Date: Jun 2008 Location: Florida Hill Country Photos: Gallery \| Albums Posts: 17,377	Originally posted by Pål Jensen A recently filed Pentax patent makes this highly likely and explains the photo below. The english is badly translated but the meaning is clear. "Pentax applied for a patent about a division-type lens body tube. It is hard to carry the super tele-photo lens, but it will be easy to carry it if degradable. . . . Since Pentax now holds the Patent on the degradable lens, 1) does this mean companies with crap lenses have to pay royalties; and 2) does this patent retroactively cover the SDM.