RE: Tamron introduces DI 17-50/2,8

2006-02-15 Thread Jens Bladt
Yes, Sigma makes a EX 170-500mm F5.6-6.3 APO for Pentax and others.
It's even reasonably priced at apr. 600 Euro (Germany) = 725 USD.
It's probably a very good lens:
http://www.treknature.com/gallery/Africa/South_Africa/photo12819.htm
http://www.treknature.com/gallery/Africa/South_Africa/photo17020.htm
http://www.treknature.com/gallery/Africa/South_Africa/photo5957.htm
http://www.treknature.com/gallery/Asia/India/photo10701.htm
http://www.treknature.com/gallery/Africa/South_Africa/photo19822.htm


Regards
Jens Bladt
http://www.jensbladt.dk

-Oprindelig meddelelse-
Fra: Sylwester Pietrzyk [mailto:[EMAIL PROTECTED]
Sendt: 15. februar 2006 17:18
Til: pentax-discuss@pdml.net
Emne: Re: Tamron introduces DI 17-50/2,8


Jens Bladt wrote on 15.02.06 16:57:

> I don't believe that. Any manufacturer is in it for the money!
> I just don't belive it's profitable to make them with Pentax mount. The
> Tamron AF 200-500mm is not available in K-mount either. But the old MF was
> (very rare). I guess there's just not enough K-mount buyers. So they just
> make them for Canon and Nikon - which probably covers 90% of the market.
Or
> perhaps Pentax just paid Tamron not to ;-) Pentax and Tamron has been
> coopereating before, since Tamron manufactured certain Pentax lenses.
I can understand lack of 200-500 and 180 in K-mount as they are expensive
lenses and Sigma makes the ones with very similar parameters, but 17-50/2,8
would be very popular among Pentax DSLR users. If Tamron did it in Minolta
mount and KM DSLRs has sold in lesser quantities than Pentax ones then...
But of course Pentax makes some remarkable DA lenses (DA 16-45, DA 14, DA
12-24) while KM only sold Tamron's clones of htier WA angles for DSLRs and
KM never had high quality standard zoom like DA 16-45/4 for their DSLRs.

--
Balance is the ultimate good...

Best Regards
Sylwek


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Re: Tamron introduces DI 17-50/2,8

2006-02-15 Thread Thibouille
> Pentax and Tamron has been
> coopereating before, since Tamron manufactured certain Pentax lenses.

And Nikon/KM ones too BTW (AFAIR)
--
Thibouille
--
*ist-D,Z1,SFXn,SuperA,KX,MX, P30t and KR-10x ...



Re: Tamron introduces DI 17-50/2,8

2006-02-15 Thread Sylwester Pietrzyk
Jens Bladt wrote on 15.02.06 16:57:

> I don't believe that. Any manufacturer is in it for the money!
> I just don't belive it's profitable to make them with Pentax mount. The
> Tamron AF 200-500mm is not available in K-mount either. But the old MF was
> (very rare). I guess there's just not enough K-mount buyers. So they just
> make them for Canon and Nikon - which probably covers 90% of the market. Or
> perhaps Pentax just paid Tamron not to ;-) Pentax and Tamron has been
> coopereating before, since Tamron manufactured certain Pentax lenses.
I can understand lack of 200-500 and 180 in K-mount as they are expensive
lenses and Sigma makes the ones with very similar parameters, but 17-50/2,8
would be very popular among Pentax DSLR users. If Tamron did it in Minolta
mount and KM DSLRs has sold in lesser quantities than Pentax ones then...
But of course Pentax makes some remarkable DA lenses (DA 16-45, DA 14, DA
12-24) while KM only sold Tamron's clones of htier WA angles for DSLRs and
KM never had high quality standard zoom like DA 16-45/4 for their DSLRs.

-- 
Balance is the ultimate good...

Best Regards
Sylwek



Re: Tamron introduces DI 17-50/2,8

2006-02-15 Thread pnstenquist
Consider also that the Pentax DA 16-45/4 is a recent introduction that has 
probably soaked up a lot of the immediate demand for a lens in that range. 
Paul

 -- Original message --
From: Adam Maas <[EMAIL PROTECTED]>
> Sylwester Pietrzyk wrote:
> > Kostas Kavoussanakis wrote on 15.02.06 16:24:
> > 
> > 
> >>I believe I have read this here before: selling lenses or sensors is a
> >>different business line and they just sell to make money. It is not
> >>the first manufacturer not to issue a lens in Pentax mount.
> > 
> > True. But still strange as they released FF counterpart to this new lens
> > with K-mount in the past. I mean 28-75/2,8 XR. Maybe they sold too few of it
> > in Pentax mount?
> > 
> 
> Tamron's got a couple of their best lenses which aren't available in K 
> mount, notably the 180mm Macro. It's possible that they simply don't 
> think there is a market for this one, or they just haven't introduced it 
> yet.
> 
> -Adam
> 



RE: Tamron introduces DI 17-50/2,8

2006-02-15 Thread Jens Bladt

>maybe they don't want this
> popular standard lens in K-mount because they will have to compete with
> Samsung now?

What?
I don't believe that. Any manufacturer is in it for the money!
I just don't belive it's profitable to make them with Pentax mount. The
Tamron AF 200-500mm is not available in K-mount either. But the old MF was
(very rare). I guess there's just not enough K-mount buyers. So they just
make them for Canon and Nikon - which probably covers 90% of the market. Or
perhaps Pentax just paid Tamron not to ;-) Pentax and Tamron has been
coopereating before, since Tamron manufactured certain Pentax lenses.

Regards
Jens


Jens Bladt
http://www.jensbladt.dk

-Oprindelig meddelelse-
Fra: Kostas Kavoussanakis [mailto:[EMAIL PROTECTED]
Sendt: 15. februar 2006 16:24
Til: pentax-discuss@pdml.net
Emne: Re: Tamron introduces DI 17-50/2,8


On Wed, 15 Feb 2006, Sylwester Pietrzyk wrote:

> New, bright APS-C dedicated lens:
> http://www.tamron.co.jp/en/news/release_2006/news0215_a16.html
> Unfortunately no Pentax mount for now but there's Minolta version planned.
> Rumours are that Sony has some Tamron shares and maybe they don't want
this
> popular standard lens in K-mount because they will have to compete with
> Samsung now?

I believe I have read this here before: selling lenses or sensors is a
different business line and they just sell to make money. It is not
the first manufacturer not to issue a lens in Pentax mount.

Kostas





Re: Tamron introduces DI 17-50/2,8

2006-02-15 Thread Adam Maas

Sylwester Pietrzyk wrote:

Kostas Kavoussanakis wrote on 15.02.06 16:24:



I believe I have read this here before: selling lenses or sensors is a
different business line and they just sell to make money. It is not
the first manufacturer not to issue a lens in Pentax mount.


True. But still strange as they released FF counterpart to this new lens
with K-mount in the past. I mean 28-75/2,8 XR. Maybe they sold too few of it
in Pentax mount?



Tamron's got a couple of their best lenses which aren't available in K 
mount, notably the 180mm Macro. It's possible that they simply don't 
think there is a market for this one, or they just haven't introduced it 
yet.


-Adam



Re: Tamron introduces DI 17-50/2,8

2006-02-15 Thread Sylwester Pietrzyk
Kostas Kavoussanakis wrote on 15.02.06 16:24:

> I believe I have read this here before: selling lenses or sensors is a
> different business line and they just sell to make money. It is not
> the first manufacturer not to issue a lens in Pentax mount.
True. But still strange as they released FF counterpart to this new lens
with K-mount in the past. I mean 28-75/2,8 XR. Maybe they sold too few of it
in Pentax mount?

-- 
Balance is the ultimate good...

Best Regards
Sylwek



Re: Tamron introduces DI 17-50/2,8

2006-02-15 Thread Kostas Kavoussanakis

On Wed, 15 Feb 2006, Sylwester Pietrzyk wrote:


New, bright APS-C dedicated lens:
http://www.tamron.co.jp/en/news/release_2006/news0215_a16.html
Unfortunately no Pentax mount for now but there's Minolta version planned.
Rumours are that Sony has some Tamron shares and maybe they don't want this
popular standard lens in K-mount because they will have to compete with
Samsung now?


I believe I have read this here before: selling lenses or sensors is a 
different business line and they just sell to make money. It is not 
the first manufacturer not to issue a lens in Pentax mount.


Kostas



Tamron introduces DI 17-50/2,8

2006-02-15 Thread Sylwester Pietrzyk
New, bright APS-C dedicated lens:
http://www.tamron.co.jp/en/news/release_2006/news0215_a16.html
Unfortunately no Pentax mount for now but there's Minolta version planned.
Rumours are that Sony has some Tamron shares and maybe they don't want this
popular standard lens in K-mount because they will have to compete with
Samsung now?

-- 
Balance is the ultimate good...

Best Regards
Sylwek