The true iso values are different as well, Pentax bing a lot closer to advertised iso values.
Cheating that way (yes Pentax does as well) is a way to get more DR at a given advertised iso value. I hate this behaviour ! 2010/11/8, P. J. Alling <[email protected]>: > I'm not entirely sure that the K-5 D7000 and Alpha 55 actually use the > /exact/ same sensor. Not only do they seem to have different frame > sizes, and pixel counts, (which could be accounted for in the three > manufactures implementations, but they also have different Pixel > pitches. That seems to indicate a different sensor within the same > family, which could account for the differences in performance, or it > could just be typos. > > On 11/8/2010 12:29 PM, Boris Liberman wrote: >> Oh, of course I am not being serious. I am thinking however that this >> web site, which is looked up and looked at by great many people and >> which is striving to be most well known could be more attentive to the >> small details such as this. It should be 1.53 and most likely it is >> yet another minor misprint. >> >> On Mon, Nov 8, 2010 at 6:15 PM, CheekyGeek<[email protected]> wrote: >>> On Mon, Nov 8, 2010 at 10:13 AM, Boris Liberman<[email protected]> >>> wrote: >>>> According to DxO, K-7 has bigger sensor than D7000. The crop factors are >>>> 1.52 vs 1.53 respectively... >>>> >>>> *Evil grin* >>> I'm guessing that you are not serious, but isn't the crop factor due >>> to a *combination* of the sensor size and the flange distance? >>> >>> Darren Addy >>> Kearney, Nebraska >>> -- >>> Nothing is sure, except Death and Pentaxes. >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >>> >> >> > > > -- > "His lack of education is more than compensated for by his keenly developed > moral bankruptcy." > -Woody Allen > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- Thibault Massart aka Thibouille/Thibs ---------------------- Photo: K-7, Sigma 28/1.8 macro, FA50/1.4, DA40Ltd, K30/2.8, DA16-45, DA50-135, DA50-200, 360FGZ ... Laptop: Macbook 13" Unibody SnowLeo/Win7 Programing: Delphi 2009 -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
