Pentax 560mm ?

Asahiflex · 02-07-2012, 03:08 PM

It's coming as per Dpreview!!!!

Model name (tentative): smc PENTAX-DA 560mm F5.6

Unifocal super-telephoto lens for use with K mount interchangeable-lens digital cameras
Sharp, well-defined images — particularly with distant subjects — thanks to the adoption of optics used in astronomical telescopes
Market launch scheduled for 2012

ElJamoquio · 02-07-2012, 03:08 PM

Yay!!!!!!

gazonk · 02-07-2012, 03:15 PM

Originally posted by Asahiflex

It's coming as per Dpreview!!!!

And indeed 50mm 1.8!

Asahiflex · 02-07-2012, 03:15 PM

So now Pentax has almost all bases covered... Only the... elusive FF is still missing

RonHendriks1966 · 02-07-2012, 03:17 PM

And a fast longer focallenght lens.

My request:

DA*135-270mm/f2.8

ElJamoquio · 02-07-2012, 03:20 PM

It should be a bit lighter than the Sigma 500mm f/4.5 which I found somewhat hand-holdable. The front element should be about 10% smaller in diameter, about 20% smaller in area, give or take and as such the front element should be quite lighter... almost 30% lighter front element if all things are equal which of course they are not.

My guesses: 2500 grams (5.5 lbs), 330 mm long (13"), $4k. OK, I actually think it will be $5-6k but am hoping with Ricoh's attempt to put Canon out of business they will try to undercut the market.

Awesome. This should work out well and give a 780 mm f/8 with the as yet-to-be-received TC. Can I order one now?

Zav · 02-07-2012, 03:29 PM

Humm it is not a star lens? Not a WR lens? Not a SDM or DC lens?

Sinister · 02-07-2012, 03:38 PM

I suppose DA* has been dropped, and we now get WR and DC. Hope the full specs will be available by Thursday...

ElJamoquio · 02-07-2012, 03:44 PM

Originally posted by Zav

Humm it is not a star lens? Not a WR lens? Not a SDM or DC lens?

Heck, I still think it's an FA* lens. That 'DA' is a 'tentative' name. I'd be shocked if it's not an internal-motor lens.

Asahiflex · 02-07-2012, 04:02 PM

It could even be a mirror lens based on the description :-(

ElJamoquio · 02-07-2012, 04:04 PM

True. That would be quite the kick in the teeth.

I'd assume that the lens had to be kicked off in the Hoya days... which makes catadioptic lenses unlikely. But I don't know a lens design-cycle, either.

Freak · 02-07-2012, 04:34 PM

Without WR I think it's a huge opportunity missed. I will stick to my 50-500mm Sigma, if it had of been full frame compatible and WR, I would of purchased one.

Andrew Faires · 02-07-2012, 04:35 PM

Originally posted by Asahiflex

It could even be a mirror lens based on the description :-(

I really hope they don't go down that road. I wouldn't part with $500 for one of those.

m8o · 02-07-2012, 04:40 PM

"Sharp, well-defined images — particularly with distant subjects — thanks to the adoption of optics used in astronomical telescopes"

... sure sounds like a Mirror lens to me. [!] Are there any excellent optics used in astronomical telescopes that are not mirror base in the last century? (when it was discovered it wasn't prone to the problem of different wavelengths focusing on different points from passing thru lens elements)

Great benefit is they negate lateral CA; and light-weight. Negative is the bokeh (and I'll guess close-focus?).

DaveBlack · 02-07-2012, 04:42 PM

Originally posted by Andrew Faires

I really hope they don't go down that road. I wouldn't part with $500 for one of those.

+1. I really hope it is not a mirror lens, but from the description I am guessing it is very likely. At least it will keep with the small compact size .

02-07-2012, 03:20 PM	#66
ElJamoquio Veteran Member Join Date: Feb 2011 Posts: 4,873 Original Poster	It should be a bit lighter than the Sigma 500mm f/4.5 which I found somewhat hand-holdable. The front element should be about 10% smaller in diameter, about 20% smaller in area, give or take and as such the front element should be quite lighter... almost 30% lighter front element if all things are equal which of course they are not. My guesses: 2500 grams (5.5 lbs), 330 mm long (13"), $4k. OK, I actually think it will be $5-6k but am hoping with Ricoh's attempt to put Canon out of business they will try to undercut the market. Awesome. This should work out well and give a 780 mm f/8 with the as yet-to-be-received TC. Can I order one now? Last edited by ElJamoquio; 02-07-2012 at 03:26 PM.

02-07-2012, 04:40 PM	#74
m8o Veteran Member Join Date: Jul 2007 Location: 40°-55'-44" N / 73°-24'-07" W [on LI] Photos: Gallery \| Albums Posts: 3,092	"Sharp, well-defined images — particularly with distant subjects — thanks to the adoption of optics used in astronomical telescopes" ... sure sounds like a Mirror lens to me. [!] Are there any excellent optics used in astronomical telescopes that are not mirror base in the last century? (when it was discovered it wasn't prone to the problem of different wavelengths focusing on different points from passing thru lens elements) Great benefit is they negate lateral CA; and light-weight. Negative is the bokeh (and I'll guess close-focus?). Last edited by m8o; 02-07-2012 at 04:47 PM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
DA 50mm, DA 560mm, D-FA 645 90mm to be revealed at CP+	Adam	Pentax SLR Lens Discussion	56	02-10-2012 08:56 AM
Leitz 560mm f/6.8 Telyt-R - first shots and impression	Piotr	Pentax SLR Lens Discussion	1	05-11-2009 02:42 AM

02-07-2012, 03:08 PM	#61
Asahiflex Pentaxian Join Date: Jan 2008 Location: Netherlands Photos: Gallery Posts: 2,795	It's coming as per Dpreview!!!! Model name (tentative): smc PENTAX-DA 560mm F5.6 Unifocal super-telephoto lens for use with K mount interchangeable-lens digital cameras Sharp, well-defined images — particularly with distant subjects — thanks to the adoption of optics used in astronomical telescopes Market launch scheduled for 2012

02-07-2012, 03:08 PM	#62
ElJamoquio Veteran Member Join Date: Feb 2011 Posts: 4,873 Original Poster	Yay!!!!!!

02-07-2012, 03:15 PM	#63
gazonk Pentaxian Join Date: Feb 2009 Location: Oslo area, Norway Photos: Gallery \| Albums Posts: 3,746	Originally posted by Asahiflex It's coming as per Dpreview!!!! And indeed 50mm 1.8!

02-07-2012, 03:15 PM	#64
Asahiflex Pentaxian Join Date: Jan 2008 Location: Netherlands Photos: Gallery Posts: 2,795	So now Pentax has almost all bases covered... Only the... elusive FF is still missing

02-07-2012, 03:17 PM	#65
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675	And a fast longer focallenght lens. My request: *DA135-270mm/f2.8**

02-07-2012, 03:29 PM	#67
Zav Pentaxian Join Date: Feb 2009 Photos: Gallery Posts: 1,371	Humm it is not a star lens? Not a WR lens? Not a SDM or DC lens?

02-07-2012, 03:38 PM	#68
Sinister Veteran Member Join Date: Feb 2011 Location: Berlin Posts: 1,045	I suppose DA* has been dropped, and we now get WR and DC. Hope the full specs will be available by Thursday...

02-07-2012, 03:44 PM	#69
ElJamoquio Veteran Member Join Date: Feb 2011 Posts: 4,873 Original Poster	Originally posted by Zav Humm it is not a star lens? Not a WR lens? Not a SDM or DC lens? Heck, I still think it's an FA* lens. That 'DA' is a 'tentative' name. I'd be shocked if it's not an internal-motor lens.

02-07-2012, 04:02 PM	#70
Asahiflex Pentaxian Join Date: Jan 2008 Location: Netherlands Photos: Gallery Posts: 2,795	It could even be a mirror lens based on the description :-(

02-07-2012, 04:04 PM	#71
ElJamoquio Veteran Member Join Date: Feb 2011 Posts: 4,873 Original Poster	True. That would be quite the kick in the teeth. I'd assume that the lens had to be kicked off in the Hoya days... which makes catadioptic lenses unlikely. But I don't know a lens design-cycle, either.

Thread Tools	Search this Thread
	Search this Thread: Advanced Search

02-07-2012, 04:34 PM	#72
Freak Veteran Member Join Date: Jun 2010 Photos: Gallery \| Albums Posts: 361	Without WR I think it's a huge opportunity missed. I will stick to my 50-500mm Sigma, if it had of been full frame compatible and WR, I would of purchased one.

02-07-2012, 04:35 PM	#73
Andrew Faires Veteran Member Join Date: Dec 2006 Location: Ontario Posts: 744	Originally posted by Asahiflex It could even be a mirror lens based on the description :-( I really hope they don't go down that road. I wouldn't part with $500 for one of those.

02-07-2012, 04:42 PM	#75
DaveBlack Veteran Member Join Date: Jan 2011 Location: Louisville, Kentucky Posts: 441	Originally posted by Andrew Faires I really hope they don't go down that road. I wouldn't part with $500 for one of those. +1. I really hope it is not a mirror lens, but from the description I am guessing it is very likely. At least it will keep with the small compact size .