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02-09-2012, 09:10 AM   #46
axl
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QuoteOriginally posted by ogl Quote
Orange O-ring under lens cap could say that DA560 could be star or WR lens
if it would be STAR it would be SMC Pentax-DA*.....
since the tape is at the end of the writing, I'll put my pennies on DA......WR

02-09-2012, 09:11 AM   #47
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Maybe it's a foldable lens?

a PENTAX patent for super tele lens systems -> http://photorumors.com/2011/02/04/pentax-patents-telephoto-lens-that-can-be-...ransportation/
02-09-2012, 09:12 AM   #48
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QuoteOriginally posted by ogunturkay Quote
Maybe SMC PENTAX-DA 1:5.6 560 mm - 1xxxx mm?
Rather than a zoom lens, perhaps what's listed is the focal ranges when other modules are attached.
02-09-2012, 09:30 AM   #49
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I think it's a foldable lens. And the abrasions are confirm this situation.




02-09-2012, 09:34 AM   #50
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Cool...me too..but....

QuoteOriginally posted by Erik Quote
Forget the lenses, look at THIS!

Now THAT is something I'd buy
in another colour!

Cheers,
Cameron
02-09-2012, 09:34 AM   #51
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Do Pentax telescopes use the foldable lens approach?
02-09-2012, 09:37 AM   #52
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And please look this patent. I think this system applied to middle part!



Patent -> Pentax patents telephoto lens that can be taken apart for easy transportation
02-09-2012, 09:47 AM   #53
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first the new xs lens and then this one. Pentax's lens are so interesting IMO

02-09-2012, 09:51 AM   #54
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QuoteOriginally posted by crewl1 Quote
Do Pentax telescopes use the foldable lens approach?
No.... At least mine doesn't nor do the others in it's line.
02-09-2012, 10:01 AM - 1 Like   #55
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Holy Cow! It's like Ricoh walked into the Pentax skunkworks and greenlighted everything! Go Ricoh! Go Pentax!
02-09-2012, 10:05 AM   #56
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QuoteOriginally posted by SteveM Quote
No.... At least mine doesn't nor do the others in it's line.

I know nothing about len design. but is it possible:

1. optics used in astronomical telescopes allow pentax to deliver a affordable but good quality long telephoto lens
2. but pentax needs to solve the problem of an extremely long tube issue
3. and they solved it will a new idea (to make it as a foldable len)
4. and the texts hidden in the lens' info is not related to * or wr but a new description for this foldable len (that's why they hide it now)?
02-09-2012, 10:09 AM   #57
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Sony with its $13,000 500mm f/4 lens may have lots of bragging rights now, but in the end only a few will be sold (to order, at that). However this seems to be an affordable solution for everyone wanting more reach, at the expense of a longer than normal tube... (which hopefully can indeed be transported in two separate pieces).
02-09-2012, 10:16 AM   #58
ogl
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QuoteOriginally posted by Asahiflex Quote
Sony with its $13,000 500mm f/4 lens may have lots of bragging rights now, but in the end only a few will be sold (to order, at that). However this seems to be an affordable solution for everyone wanting more reach, at the expense of a longer than normal tube... (which hopefully can indeed be transported in two separate pieces).
really? USD 13 000?

I saw USD 17 000 at dpreview...in comments
02-09-2012, 10:19 AM   #59
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QuoteOriginally posted by ogl Quote
really? USD 13 000?

I saw USD 17 000 at dpreview...in comments
I can hardly believe it. Such a price makes no sense...
02-09-2012, 10:21 AM   #60
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Yeah, that seems WAY out of line, especially with the sigma at $5k.

The DOF is so small at 500 f/4.5 anyway, tough to imagine scenarios where I'd want it smaller.
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