> > The only good reasons to do the 1.5 or 1.6 conversion is to help you > pick out a body to buy or to annoy Bill. But really, isn't that reward enough?
Steve Desjardins wrote: > The best thing to do (IMHO) is to just force yourself to think > differently. 20 is a moderate wide angle, 28-35 is normal, 50 is a > short tele, 200 is a longish tele, etc. At least for me, I think of DoF > in a more experiential way and not in terms of meters, etc. Take > advantage of the digital format. Take your favorite lenses, blow off > some test shots of something with pronounced DoF effects (like a fence > end on) and look at them on your computer. You may also find that you > now have different favorite lenses. I now like my FA20-35 more than I > used to. > > The only good reasons to do the 1.5 or 1.6 conversion is to help you > pick out a body to buy or to annoy Bill. > > Steve > > >>>> ann sanfedele <[EMAIL PROTECTED]> 10/2/2007 9:43 PM >>> >>>> > Adam Maas wrote: > > >> ann sanfedele wrote: >> >> >> >>> notice how I cleverly avoided mentioning my little bastard camera... >>> >>> but seriously, folks - It took me a few beats too long to realize >>> > that a > >>> 28mm smc Pentax lens on a >>> 35 mm digital camera changes it to a less wide lens -- and, I'm >>> guessing, the bit of space between the >>> back of the lens and the camera itself, due to the thickness of the >>> adaptor also contributes to this. >>> >>> Soooo is there a chart somewhere or a formula that says 28 becomes >>> 50(?) etc ??? >>> Does the difference/ proportion increase with the physical length of >>> > the > >>> lens? >>> >>> My 100mm macro seems like a 200 mm lens - so I'm really in pig >>> > heaven.... > >>> It seems like the 28 mm still has the same depth of field given any >>> given aperature when it is >>> on the KX or the digital camera.... >>> >>> ann the curious >>> >>> >>> >>> >> The conversion is 1.6 times for the small Canon bodies, so take your >> > 28, > >> multiply by 1.6 and you have the equivalent in 35mm terms (Which is >> > 45mm > >> or so). And it's all because the sensor is smaller than a 35mm frame >> > of > >> film, not because of the space the adaptor takes up. >> >> The conversion applies to all lenses and doesn't change. And it >> > doesn't > >> affect DoF, it's really just like a crop out of the centre of the 35mm >> > > >> frame. >> >> -Adam >> >> >> > Adam - good answer good answer! :) just what i wanted to know... > thanks, luv > > ann > > >> >> >> > > > > -- Remember, it’s pillage then burn. -- 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.
