Re: Lens for *istD
This one time, at band camp, Bruce Dayton [EMAIL PROTECTED] wrote: Robert, There is always the digital only 16-45 that is coming out. You didn't mention whether you needed it to work on a film camera or not. As I understand, the lenses made for the *istD are to suit the smaller sized sensor. Should a 24mmx36mm sensor come along, would these lenses not be obsolete? And we could all go along using our 35mm lenses we have cherished for so long. Kind regards Kevin -- __ (_ \ _) ) | / / _ ) / _ | / ___) / _ ) | | ( (/ / ( ( | |( (___ ( (/ / |_| \) \_||_| \) \) Kevin Waterson Port Macquarie, Australia
Re: Lens for *istD
keller.schaefer [EMAIL PROTECTED] wrote: Zitat von Kevin Waterson [EMAIL PROTECTED]: This one time, at band camp, Bruce Dayton [EMAIL PROTECTED] wrote: There is always the digital only 16-45 that is coming out. You didn't mention whether you needed it to work on a film camera or not. As I understand, the lenses made for the *istD are to suit the smaller sized sensor. Should a 24mmx36mm sensor come along, would these lenses not be obsolete? And we could all go along using our 35mm lenses we have cherished for so long. It will not 'come along' unless Pentax decides to go this way ... and all indications say that they will not. ??? A Pentax engineer at last year's PMA specifically said they *were* pursuing full-frame digital! -- Mark Roberts Photography and writing www.robertstech.com
Re: Lens for *istD
Of course I don't 'know' what will happen - but wouldn't this be a big, big surprise, given that they have stopped developing their full frame DSLR in favour of the *ist D and have started developing and selling lenses with a smaller image circle? To me this looks like a complete change of direction rather than an interim solution. A full frame DSLR would just not fit into this picture - and there is no reason to believe that APS sized sensors cannot be developed further to achieve higher resolutions. Wouldn't Pentax be 'perfectly' lined up with a 10MP upgraded *ist D'n' plus a cheaper 'budget' version plus two or three DA wide angle lenses? Sven Zitat von Mark Roberts [EMAIL PROTECTED]: keller.schaefer [EMAIL PROTECTED] wrote: Zitat von Kevin Waterson [EMAIL PROTECTED]: This one time, at band camp, Bruce Dayton [EMAIL PROTECTED] wrote: There is always the digital only 16-45 that is coming out. You didn't mention whether you needed it to work on a film camera or not. As I understand, the lenses made for the *istD are to suit the smaller sized sensor. Should a 24mmx36mm sensor come along, would these lenses not be obsolete? And we could all go along using our 35mm lenses we have cherished for so long. It will not 'come along' unless Pentax decides to go this way ... and all indications say that they will not. ??? A Pentax engineer at last year's PMA specifically said they *were* pursuing full-frame digital! -- Mark Roberts Photography and writing www.robertstech.com
Re: Lens for *istD
There is. Such things as noise/sensitivity considerations and diffraction limits. DagT På 9. jan. 2004 kl. 15.00 skrev keller.schaefer: A full frame DSLR would just not fit into this picture - and there is no reason to believe that APS sized sensors cannot be developed further to achieve higher resolutions.
Re: Lens for *istD
On Fri, 9 Jan 2004, mapson wrote: What zoom lens (wide-ish angle) would you recommend for istD? I have 'regular' Pentax17-28mm, Pentax 28-70 f4 and Tokina 28-70 f2.6/2.8 but, as you all well know, they suddenly got 'narrower' with the purchase od the digital camera. Hence I need something that will take me back to the 28mm angle of view (in 35mm format) or wider. I'd wait a month or two for the DA 16-45/4. alex
Re: Lens for *istD
Yes, no doubt. But there still is room for further development. There already are 5MP sensors 7.2x5.3mm large. An APS sized sensor with this pixel density would have 46 MP. So a good quality 10+ MP APS sensor is nothing unthinkable, right? Sven Zitat von Dag T [EMAIL PROTECTED]: There is. Such things as noise/sensitivity considerations and diffraction limits. DagT På 9. jan. 2004 kl. 15.00 skrev keller.schaefer: A full frame DSLR would just not fit into this picture - and there is no reason to believe that APS sized sensors cannot be developed further to achieve higher resolutions.
Re: Lens for *istD
On 9 Jan 2004 at 16:56, keller.schaefer wrote: Yes, no doubt. But there still is room for further development. There already are 5MP sensors 7.2x5.3mm large. They are poor performers relative to sensors the density of the *ist D, they also start becoming unsharp from f11 due to diffraction effects. An APS sized sensor with this pixel density would have 46 MP. So a good quality 10+ MP APS sensor is nothing unthinkable, right? Even at 10MP on an APS sensor you are starting to ask a lot from your lenses and body including ultra-precise focus in order for it to make a difference. Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
Re: Lens for *istD
On Fri, 9 Jan 2004, keller.schaefer wrote: Yes, no doubt. But there still is room for further development. There already are 5MP sensors 7.2x5.3mm large. An APS sized sensor with this pixel density would have 46 MP. So a good quality 10+ MP APS sensor is nothing unthinkable, right? The noise at ISO 100 on those 7.2x5.3mm sensors is higher than the noise on the *ist D at ISO 800. I'd rather have 6 clean megapixels than 46 noisy ones. Compare the Olympus E1 to the *ist D. The pixel size of the E1 is smaller, but nowhere near as small as the PS cameras. The E1 is a much noisier camera than the *ist D. alex
