All Forum Comments
Comment by alfpics posted on DNG Artifact at 28/11/2013 - 17:38
Sounds like a close call - glad to hear you're ok/ on the mend
Andy
Andy
Comment by alfpics posted on Back from the dead... Have I missed much? at 23/11/2013 - 19:28
Good news!
Andy
Andy
Comment by alfpics posted on K-7 Returned with faulty sensor at 09/11/2013 - 13:17
No - because the shutter blade is still travelling at the same speed; it is simply a matter that the trailing blade sets off before the leading blade has completely finished exposing the sensor/ film which means you have a slot, or a strip of light exposing the sensor/ film rather than the sensor being completely exposed all in one go - see link in Pentaxophiles earlier post to 'black bars appearing in the shot'.
Andy
Andy
Comment by alfpics posted on According to Ricoh Imaging France at 07/11/2013 - 09:34
Pentaxophile wrote:
Not sure how shutter life is affected by Flash sync ability?
The higher speed of shutter blade transition required for higher sync speed would put extra strain on the moving parts thereby shortening their life-span - ie wearing them out more quicklyNot sure how shutter life is affected by Flash sync ability?
Andy
Comment by alfpics posted on According to Ricoh Imaging France at 07/11/2013 - 08:35
McGregNi wrote:
This is on topic by coincidence - I was looking today at a PDF copy of the Pentax magazine from 2006 that had an article introducing the K10.
I was surprised to see reference to '22 bit colour depth', which sounds very high for the time - but is this more of a characteristic of the CCD sensor. Certainly plenty of owners have praised the cameras colour reproduction.
Does anyone know how this '22 bit' figure relates to the 12 / 14 bit of our current models?
It didn't give a 22 bit output; the Digital-Analogue converter was overkill as it only output 10 or 12 bit of info to the end user! I think the 22-bit sampling might have just helped get a little more useful info from the sensor!This is on topic by coincidence - I was looking today at a PDF copy of the Pentax magazine from 2006 that had an article introducing the K10.
I was surprised to see reference to '22 bit colour depth', which sounds very high for the time - but is this more of a characteristic of the CCD sensor. Certainly plenty of owners have praised the cameras colour reproduction.
Does anyone know how this '22 bit' figure relates to the 12 / 14 bit of our current models?
Andy
Comment by alfpics posted on K5 performance at 06/11/2013 - 21:19
Algernon wrote:
IIRC - yes! (I had one)Peter Elgar wrote:
Need a model with 1/250th flash synch -- Canon T 90 and Nikon did it years ago !
Wasn't the Pentax Z1-P 1/250th sec. Need a model with 1/250th flash synch -- Canon T 90 and Nikon did it years ago !
Andy
Comment by alfpics posted on According to Ricoh Imaging France at 05/11/2013 - 16:55
Can you clarify something; you say its happening with RAW DNG, but doesn't happen with K-r DNG. Do you mean its happening with RAW PEF - if that is so then it is probably that Picasa and Photoplus X5 aren't/ weren't totally up to speed with that file format. Basically the sensor is larger than the saved image file, so there are a few spare pixels around each edge that are not used in the final image, and it could be that the RAW converter isn't quite making the crop as it should
Not sure if that helps or not
Andy
PS - classy 'Hog'!