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08-14-2014, 12:57 PM   #721
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I'm afraid the only efficient method to persuade Sigma in making more K-mount lenses would be for us to buy Sigma lenses - many, pricey Sigma lenses. Don't count on me, though.

If asked, Sigma will give a non-answer about deciding based on estimated sales numbers.


Last edited by Kunzite; 08-14-2014 at 01:03 PM.
08-14-2014, 12:57 PM   #722
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Correct me if I'm wrong, but between Canon, Nikon, Sony, and Pentax, Pentax is the only one who doesn't have any provision for an electronic aperture control? The mechanical linkage in the K-mount is going to make it more expensive to support by third parties.
08-14-2014, 01:04 PM   #723
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Nikon and Sony Alpha also have mechanical/lever aperture control. Canon's is electronic.
08-14-2014, 01:16 PM   #724
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QuoteOriginally posted by marmaduke Quote
Cologne, 16.-21.09.2014
Strange, no fervour for the damn thing. it's literally 2 months (ish) away. how come we got no rumours going??

heres the link by the way:
photokina | Home

there isn't much to go on. but still, no rampant religious chanting for a FF?? where are my pentax cultists FFS?
OK Lets look at what might occur at Photokina 2014, a few ideas from information gathered.
1 Pentax will launch a 12-28 f4 zoom lens to keep the APSC users happy. this lens is all ready made by Tokina so the rebranding to Pentax is no problem.
2 Pentax will launch a midrange in house designed and made zoom maybe a 16-60 f4 or f2.8 (24-90mm in 35mm) new SDM motor design.
3 the above two lens' will replace the current 12-24 16-50 and 50-135 as Tokina has ceased production and the current APSC user must be supported.
4 Pentax will launch a full frame camera, nothing radical here (when times are tough stick to what you know) the K1 will be a modified K3 chassis with a new condenser lens and mirror box (straight of the MZ-S), I think it will be 24mp, as 24mp is 24mp apsc or ff generated so no need for any hardware or software changes from the K3, grip will be unique to K1, but will not much changed from the current DBG-4/5 design.
5 Three full frame lens' will be announced at the same time 17-35mm f4, 24-70 f2.8 and 70-200 f4 the last is the mysterious entry on the lens road map, all three are actually made by Tokina (two of the lens' are all ready in production, and Tokina have announced the 24-70 f2.8 and shown a production copy at CP+) all three rebranded to Pentax.
well that's my crystal ball gazing done

08-14-2014, 02:06 PM   #725
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QuoteOriginally posted by Snappertim Quote
3 the above two lens' will replace the current 12-24 16-50 and 50-135 as Tokina has ceased production and the current APSC user must be supported.
Doesn't makes sense since Tokina does not produce for Pentax.
08-14-2014, 02:43 PM   #726
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QuoteOriginally posted by thibs Quote
Doesn't makes sense since Tokina does not produce for Pentax.
I won't bet on that prediction then, lol
08-14-2014, 04:30 PM   #727
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It is possible that lenses that are not available from 3rd party manufacturers could be made available under license; The Tamron 24-70 and Tamron 70-200 could be rebranded and launched with a FF and may already be filling up a warehouse somewhere. Both of those lenses are better than the Nikon equivalent in many respects.

I have the Tamron 24-70 and it's a very nice lens apart from the 70mm end, which is soft and must be stopped down 1 or 2 stops to get an acceptable IQ. The 24-70 is as sharp as a lot of primes (even sharper) between 24 and 60mm and it has VC that works.
08-14-2014, 09:04 PM   #728
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QuoteOriginally posted by Kenntak Quote
I won't bet on that prediction then, lol
This is no prediction but fact until now.

08-15-2014, 01:55 AM   #729
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QuoteOriginally posted by bossa Quote
It is possible that lenses that are not available from 3rd party manufacturers could be made available under license; The Tamron 24-70 and Tamron 70-200 could be rebranded and launched with a FF and may already be filling up a warehouse somewhere. Both of those lenses are better than the Nikon equivalent in many respects.

I have the Tamron 24-70 and it's a very nice lens apart from the 70mm end, which is soft and must be stopped down 1 or 2 stops to get an acceptable IQ. The 24-70 is as sharp as a lot of primes (even sharper) between 24 and 60mm and it has VC that works.
Well then you have to team up with them.
08-15-2014, 06:33 AM   #730
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QuoteOriginally posted by robjmitchell Quote
While it's shame that sigma has stopped producing some great lenses in K-mount, its hardly surprising given their recent innovative releases and high demand.
It's also not that surprising that people who buy pentax often prefer small and light rather than massive and fast.
What lenses have they discontinued? I noticed the 70-200 (fortunately I have one) - are there others? Thanks
08-15-2014, 06:47 AM   #731
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QuoteOriginally posted by RockvilleBob Quote
What lenses have they discontinued? I noticed the 70-200 (fortunately I have one) - are there others? Thanks
Apparently, the 8-16 and the 70 macro have been discontinued as well.

---------- Post added 08-15-2014 at 07:00 AM ----------

QuoteOriginally posted by Snappertim Quote
the above two lens' will replace the current 12-24 16-50 and 50-135 as Tokina has ceased production
Does Tokina produce these lenses? I believe Tokina and Pentax both produce their own versions of the lenses. They share the same optical formula, but are otherwise different, with different coatings, different exterior finish, different mounts. And how could a 16-60 f4 lens replace the DA* 16-50 f2.8 and the DA* 50-135?

QuoteOriginally posted by Snappertim Quote
Three full frame lens' will be announced at the same time 17-35mm f4, 24-70 f2.8 and 70-200 f4
That would be nice, but I suspect will see the 70-200 released before the other full frame lenses because (1) it's already on the roadmap; and (2) it fills a hole in the APS-C lineup better than those other lenses would. However, since there's already a 60-250 f4, I believe the 70-200 will be an f2.8 lens. Moreover, Pentax has already filed a patent for a 70-200 f2.8 lens:

08-15-2014, 07:13 AM   #732
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Interesting list.

QuoteOriginally posted by Snappertim Quote
OK Lets look at what might occur at Photokina 2014, a few ideas from information gathered.
1 Pentax will launch a 12-28 f4 zoom lens to keep the APSC users happy. this lens is all ready made by Tokina so the rebranding to Pentax is no problem.
2 Pentax will launch a midrange in house designed and made zoom maybe a 16-60 f4 or f2.8 (24-90mm in 35mm) new SDM motor design.
3 the above two lens' will replace the current 12-24 16-50 and 50-135 as Tokina has ceased production and the current APSC user must be supported.
4 Pentax will launch a full frame camera, nothing radical here (when times are tough stick to what you know) the K1 will be a modified K3 chassis with a new condenser lens and mirror box (straight of the MZ-S), I think it will be 24mp, as 24mp is 24mp apsc or ff generated so no need for any hardware or software changes from the K3, grip will be unique to K1, but will not much changed from the current DBG-4/5 design.
5 Three full frame lens' will be announced at the same time 17-35mm f4, 24-70 f2.8 and 70-200 f4 the last is the mysterious entry on the lens road map, all three are actually made by Tokina (two of the lens' are all ready in production, and Tokina have announced the 24-70 f2.8 and shown a production copy at CP+) all three rebranded to Pentax.
well that's my crystal ball gazing done
I see:

the 12-24 WR coming in 8 months
Item 2 won't happen for a year, but several duplicate lens classes will be DC'd
Item 3 not likely on DC of 16-50 DA* and 50-135 DA*, they ARE the differentiators....
Item 4 a year or more out, and the most economic R&D will be a K-01 modified for FF and an EVF added
Item 5 will happen just before the FF announcement

Tokina's influence is Zero. IMHO
08-15-2014, 07:20 AM   #733
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QuoteOriginally posted by northcoastgreg Quote
Apparently, the 8-16 and the 70 macro have been discontinued as well.

---------- Post added 08-15-2014 at 07:00 AM ----------


That would be nice, but I suspect will see the 70-200 released before the other full frame lenses because (1) it's already on the roadmap; and (2) it fills a hole in the APS-C lineup better than those other lenses would. However, since there's already a 60-250 f4, I believe the 70-200 will be an f2.8 lens. Moreover, Pentax has already filed a patent for a 70-200 f2.8 lens:
Wasn't this design used for the Q's 06 lens already? Or is this a new one?
08-15-2014, 07:27 AM   #734
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QuoteOriginally posted by northcoastgreg Quote
(...)
Pentax has already filed a patent for a 70-200 f2.8 lens:
QuoteOriginally posted by Alizarine Quote
Wasn't this design used for the Q's 06 lens already? Or is this a new one?
Yes, it was.
08-15-2014, 07:42 AM   #735
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I would rather have a 60-250+ 2.8 and pay up than buy an obsolete 3x 70-200 f2.8 (new design and all). So you add a TC1.4x and get a 98-280 F4? 60-250 kills that idea.
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