P. J. Alling wrote: >It's my web site, and I wrote the program. It's safe. > I suppose you don't inhale either, eh?
Just kidding Peter -- safe or not - I really have more info on the topic than I can remember as it is - the key things I learned is 1.6 and "roughly one more stop" of DOF My eyes told me some of this :) ann > >ann sanfedele wrote: > > >>P. J. Alling wrote: >> >> >> >> >>>Just for you. OK so I shared this with the list a few days ago. It >>>should work on your machine. Let me know if it doesn't. >>> >>>http://www.mindspring.com/~happydogsoftware/AOVCalc.zip >>> >>> >>> >>> >>> >>Why is it a .zip if it is just a link? That looks like someplace I >>don't want to go, actually. >>(paranoid? yes) >> >>Read back a few posts and you will see Adam and Mark Cassino answered >>my question. >> >>that was about as much math as I could handle :) >> >>but thanks for the thought >> >>ann >> >> >> >> >>>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 >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >>> >>> >> >> >> >> > > > > -- 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.
