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05-26-2009, 05:47 AM   #181
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QuoteOriginally posted by drerka Quote
Pentax, as I see it, is a company that cares very much about technical excellence and therefore is more willing than other companies to introduce showcase products, such as a fast prime.
Roger.
Spot on. Take also into the equation that Hoya who owns Pentax is an optical company. If the K-7 is well received, I'm sure Pentax/Hoya will want an optical product as a statement.

05-26-2009, 06:22 AM   #182
ogl
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To make fake roadmap is not hard work.

But it can't answer the question -
if

DFA645 25/2.8
DFA645 55/2.8

DFA*50/1.0 SDM
DA135/2.8 LIMITED
DFA*20/2.8 SDM
DA*400/4 ED (IF) SDM

real or not.
05-26-2009, 07:43 AM   #183
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I like your thinking

QuoteOriginally posted by ogl Quote
To make fake roadmap is not hard work.

But it can't answer the question -
if

DFA645 25/2.8
DFA645 55/2.8

DFA*50/1.0 SDM
DA135/2.8 LIMITED
DFA*20/2.8 SDM
DA*400/4 ED (IF) SDM

real or not.
05-26-2009, 08:02 AM   #184
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QuoteOriginally posted by ogl Quote
To make fake roadmap is not hard work.

But it can't answer the question -
if ....
real or not.
DFA645 25/2.8 - no, too short for Medium Format. 35 - may be, but not 25 (and 3.5-4.0 instead of 2.8)
DFA645 55/2.8 - surely yes

DFA*50/1.0 SDM - NO! Rear lens won't fit K mount
DA135/2.8 LIMITED - DA? No! Also it will be huge due to physics, so it won't be pancake.
DFA*20/2.8 SDM - No! DFA has aperture ring, which is "bad idea with no aperture coupler in camera".
DA*400/4 ED (IF) SDM - yes, it can exist. Or in 5.6 version. Or in 4.5.

05-26-2009, 09:26 AM   #185
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QuoteOriginally posted by Zebooka Quote
DFA645 25/2.8 - no, too short for Medium Format. 35 - may be, but not 25 (and 3.5-4.0 instead of 2.8)
.
No. The 645 Digital has a cropped sensor. Hence, they need something wider than 35mm (a 35mm alredy exist; the newest 645 lens in the line up; also the best wideangle ever made for medium format). A new 24~28mm is likely. Speed; F:4~5.6. On the roadmap.
05-26-2009, 09:39 AM   #186
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QuoteOriginally posted by Zebooka Quote
DA135/2.8 LIMITED - DA? No! Also it will be huge due to physics, so it won't be pancake.
Do you mean huge like this one?
Pentax Lens Review Database - 135mm F3.5

lens must not necessarily be a pancake - it just has to be a lim cheers
05-26-2009, 09:44 AM   #187
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QuoteOriginally posted by RaduA Quote
If this is true I guess the employees of Pentax Poland will be subjected to a thorough fingernail check up to find out who the *rat* is! In his shoes although is REALLY not my style I would start using some polish or fake nails.

I could be wrong but I think that finger shows some evidence of healing up from a bamboo shoot under the cuticle, or maybe it was smashed in a vice. This may not the first time he's pulled a stunt like this and been caught.
05-26-2009, 10:02 AM   #188
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I remain convinced this whole thing is a hoax. I hope it's not. For Hoya-Pentax do pull off some kind of "hail mary" surprise play that made them suddenly the dominant innovator in the industry would be awesome…but it's just such fantasies that perpetrators of such hoaxes seek to exploit.

05-26-2009, 10:05 AM   #189
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05-26-2009, 01:09 PM   #190
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QuoteOriginally posted by sveinmb Quote
...
You can explain how the 50/1.0 looks exactly the same as the 645 55 in the first shot ?
I think it's a fake but it's not because of the image shown.
To have a real picture of the real lens with all the right graphics it would need to be pretty near release.
The graphic designer in charge of updating the chart when marketing/engineering decides to make some changes don't necessarily have the time to model a lens a make some renders, especially if the chart is not supposed to be public!
05-26-2009, 02:05 PM   #191
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QuoteOriginally posted by lawsonstone Quote
I remain convinced this whole thing is a hoax. I hope it's not. For Hoya-Pentax do pull off some kind of "hail mary" surprise play that made them suddenly the dominant innovator in the industry would be awesome…but it's just such fantasies that perpetrators of such hoaxes seek to exploit.
Releasing a 50mm 1.0 would be interesting, and would get Pentax some positive recognition. But in no way does releasing 1 ultra-fast lens suddenly make you a dominant innovator in the industry, they'll have to do a lot more than that. And Canon has already had a AF 50mm F1.0 out for about 20 years or so & many years before that a 50mm 0.95 for their rangefinders, so this isn't really that innovative. I'm entirely for a FF DSLR and certainly have nothing against them releasing lenses like this though.

Zebooka,

QuoteQuote:
DFA645 25/2.8 - no, too short for Medium Format. 35 - may be, but not 25 (and 3.5-4.0 instead of 2.8)
DFA645 55/2.8 - surely yes

DFA*50/1.0 SDM - NO! Rear lens won't fit K mount
DA135/2.8 LIMITED - DA? No! Also it will be huge due to physics, so it won't be pancake.
DFA*20/2.8 SDM - No! DFA has aperture ring, which is "bad idea with no aperture coupler in camera".
DA*400/4 ED (IF) SDM - yes, it can exist. Or in 5.6 version. Or in 4.5.
To the 645 lenses, cropped sensor, so certainly plausible.

50mm/1.0 - I'm not enough of an expert on the K mount or optical design to say if it's possible or not. I know that the Canon EOS mount is a bit larger, but not dramatically, and they have a 50mm/1.0. I do recall Canon claiming the change to the EOS mount's design from FD partly to allow lenses such as the 50mm/1.0, so I'm sure it would be pushing the limits of the K mount.

135mm/2.8 - I've seen 135/2.8 lenses that I wouldn't call 'huge', and Pentax has shown the ability to produce very compact lenses for their specs. And regardless, Pentax could make any lens they want and slap 'limited' on it.

20mm/2.8 - If Pentax comes out with a FF DSLR, I think that there's a reasonable chance that they'd put the aperture coupler back in. And even if they did not, the lens would obviously have an 'A' setting anyway. So nothing wrong with an aperture ring IMO, really I would give Pentax a lot of credit as it would mean that they're acknowledging film users and giving it backwards compatibility. Being SDM, it would need the screw drive also for backwards compatibility.

I don't know if any of this is real or not, I don't get too caught up into these stupid little teases that randomly show up. I will say that I am strongly for a FF DSLR, it will help Pentax and it has many advantages. I've always said that IMO about the only valid argument against FF is cost, but sensor design continues to improve and cost continue to drop.
05-26-2009, 05:17 PM   #192
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QuoteOriginally posted by Buddha Jones Quote
I personally don't think they are a fake, I think that PENTAX has taken the cue that they have been, well... sucking ass for a long time and now it is time to get serious about and do two things;
1. Making products that make headlines
2. Making products that fill the needs that thier users want.

If you look at all of the lenses that PENTAX has produced in the past, M, A, F and even FA, there are HUGE voids to fill in comparison to what is on the market now. I think that they are starting to realize that they need to saturate the market a bit more than they have been. IMO its about damn time.

I am a firm believer that you have to give people the OPTION to say no, because there are those who will always say yes.
Agreed... they need to be able to attract the canikon FF userbase (prestige) to make the switch. In a down economic climate, even the NFL photogs might give Pentax a second thought if they can get quality gear for half the price with the 400mm... as long as they don't care about FPS ;-)
05-26-2009, 05:32 PM   #193
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QuoteOriginally posted by chefours Quote
I think that it's not possible, all the design must be redone to gather more light to the same area (different shapes of the elements), but ... here we have optical engineers specialized in the K mount who say it's not possible, so we can stop thinking about it :ugh:


it's possible, looks like Canon's 85 1.2L
05-26-2009, 05:38 PM   #194
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QuoteOriginally posted by lawsonstone Quote
I remain convinced this whole thing is a hoax. I hope it's not. For Hoya-Pentax do pull off some kind of "hail mary" surprise play that made them suddenly the dominant innovator in the industry would be awesome…but it's just such fantasies that perpetrators of such hoaxes seek to exploit.
"Hail Mary" or "Nail Hairy"?...
05-26-2009, 08:15 PM   #195
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Do the DA* lenses use an aperture lever of is the aperture control in lens by a servo?

I'm wondering if Pentax can make a lens without an aperture lever. Then maybe the rear element can be made large enough.

Overall though, I think this is a hoax.
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