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Sigma 17-70 and Pentax DA 17-70 the same?

Started Dec 29, 2007 | Discussions thread

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petiteface

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Sigma 17-70 and Pentax DA 17-70 the same?

Dec 29, 2007

I just looked at the Pentax roadmap and was wondering if Pentax is copying the Sigma 17-70 to create the new (yet to be released) lens or whether it is a new in-house design? Any folks with inside info? Thanks.

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Post (hide subjects)	Posted by	When
Sigma 17-70 and Pentax DA 17-70 the same?	petiteface	Dec 29, 2007
Re: Sigma 17-70 and Pentax DA 17-70 the same?	Anastigmat	Dec 29, 2007
Re: Sigma 17-70 and Pentax DA 17-70 the same?	Michael Perham	Dec 29, 2007
Re: Sigma 17-70 and Pentax DA 17-70 the same?	Dave Lewis	Jan 2, 2008
Re: Sigma 17-70 and Pentax DA 17-70 the same?	hanhait	Dec 29, 2007
Re: Sigma 17-70 and Pentax DA 17-70 the same?	Caat	Dec 29, 2007
Not the same.	GossCTP	Dec 31, 2007
The pentax is F/4 constant...	Bart Hickman	Dec 30, 2007
Re: The pentax is F/4 constant...	MightyMike	Dec 30, 2007
ditto	kenyee	Dec 31, 2007
Re: ditto	Bart Hickman	Dec 31, 2007
Re: ditto	Bart Hickman	Dec 31, 2007
probably some physics thing	kenyee	Dec 31, 2007
Re: probably some physics thing	Bart Hickman	Dec 31, 2007
Re: The pentax is F/4 constant...	janneman02	Dec 31, 2007
Re: The pentax is F/4 constant...	Bart Hickman	Dec 31, 2007
or weathersealing?	kenyee	Dec 31, 2007
I agree, but it doesn't matter	GossCTP	Dec 31, 2007
Re: I agree, but it doesn't matter	Bart Hickman	Jan 1, 2008
Re: The pentax is F/4 constant...	mutleybird	Jan 1, 2008
Re: The pentax is F/4 constant...	CSPronken	Jan 1, 2008
Re: The pentax is F/4 constant...	mutleybird	Jan 1, 2008
Re: The pentax is F/4 constant...	Bart Hickman	Jan 2, 2008
Re: The pentax is F/4 constant...	mutleybird	Jan 2, 2008
Re: The pentax is F/4 constant...	Bart Hickman	Jan 2, 2008
Re: The pentax is F/4 constant...	mutleybird	Jan 2, 2008
Sensor Size	StephanSchmidt	Jan 2, 2008
Re: Sensor Size	Bart Hickman	Jan 2, 2008
Re: Sensor Size	StephanSchmidt	Jan 2, 2008
Re: Sensor Size	Bart Hickman	Jan 2, 2008
Re: Sensor Size	StephanSchmidt	Jan 2, 2008
yep, iso sensitivity depends on photosite size	kenyee	Jan 2, 2008
Re: yep, iso sensitivity depends on photosite size	Bart Hickman	Jan 2, 2008
Re: Sensor Size	Bart Hickman	Jan 2, 2008
Re: Sensor Size	CSPronken	Jan 2, 2008
Re: The pentax is F/4 constant...	SR72	Dec 31, 2007
Re: The pentax is F/4 constant...	tapir	Dec 31, 2007
Re: The pentax is F/4 constant...	SR72	Jan 1, 2008
Re: The pentax is F/4 constant...	gazonk	Jan 1, 2008
Re: The pentax is F/4 constant...	Bart Hickman	Jan 2, 2008
Re: The pentax is F/4 constant...	tapir	Jan 2, 2008
Re: The pentax is F/4 constant...	mutleybird	Jan 2, 2008
Re: The pentax is F/4 constant...	Bart Hickman	Jan 2, 2008
What it has to do with anything?	tapir	Jan 2, 2008
Re: The pentax is F/4 constant...	Bart Hickman	Jan 2, 2008
Re: The pentax is F/4 constant...	tapir	Jan 2, 2008
Re: Sigma 17-70 and Pentax DA 17-70 the same?	Godfrey	Jan 2, 2008

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