wouldn't the lack of a 1.54 crop factor that APC-S sensor cameras have over 35mm frame more-or-less cancel out the 1.4x converter effect so that a DA14mm + 1.4TC on a 35mm frame would end up being a 14/1.54 x 1.4 = 12.7mm FOV on full frame?
Alastair On 28 January 2014 08:42, Darren Addy <[email protected]> wrote: > On Sun, Jan 26, 2014 at 10:07 AM, Mark Roberts > <[email protected]> wrote: >> (which he says Pentax is calling a "Full Frame Converter") > > WUTT > > If this is true, is it possible that the converter will allow DA > lenses (that don't quite cover full frame) to cover them adequately > (albeit at 1.4x the focal length). This would be most beneficial to > the faster DA lenses that don't cover full frame: > DA 14mm f/2.8 (21mm equiv. FOV on APS-C) would become a 21mm f/4 on full > frame. > DA* 16-50mm f2.8 (with 24-75mm equiv. FOV) would become a 24-70mm f/4 > on full frame > DA* 50-135mm f2.8 (with 75-197mm equiv FOV) would become a 70-190mm f4 > on full frame > > -- > 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. -- 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.
