Re: Re: SDM question

2023-03-29 Thread collinb
I’m not quite at that point yet. But I did take a look at the sample images: https://www.pentaxforums.com/reviews/pentax-50-f14-comparison/samples-photos.html It looks like they’ve got a winner optical formula. It’s nice to see images that don’t look so flat as is too common in 35mm lens formul

Re: SDM question

2023-03-26 Thread Bill
My understanding is maybe. We don't hear much about SDM failure these days. Apparently they got it fixed on the 60-250, which was good. Mine was in the shop twice for it. If you really intend to spring for a new 50, drop the extra coin on the D FA* 50/1.4. It's quite a bit more money, but it is a b

SDM question

2023-03-23 Thread collinb
Just a question that came to mind .. I recall the first 50mm SDM drive having lots of reliability problems. Has that been fixed in later SDM-drive lenses? -- %(real_name)s Pentax-Discuss Mail List To unsubscribe send an email to pdml-le...@pdml.net to UNSUBSCRIBE from the PDML, please visit the l

Re: Some Pentax sales spotted, including 70-200/2.8 (SDM question)

2016-07-28 Thread Stanley Halpin
I went to Wikipedia to see if they could tell me what an ultrasonic motor is, how it works, and whether it can be heard. That last point was my first question actually. Seeing the term “ultrasonic” triggered the thought that the sonic may be “ultra” with respect to human hearing, but maybe bird