> anywhere close to infinity is it possible for anything to be close to infinity? Any philosophers out there?
Bob > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of [EMAIL PROTECTED] > Sent: 03 April 2008 16:44 > To: Pentax-Discuss Mail List > Subject: Re: help needed for new pentax lens website > > I would think it best to restrict something like this to > lenses that can be used without an adapter. It might be > worthwhile to include m42 Pentax lenses, but I would draw the > line there. BTW, although you can fit a Leica 39mm screwmount > lens to a Pentax with adapters, it won't focus anywhere close > to infinity. It will be macro only. Not exactly useful. > Paul > -------------- Original message ---------------------- > From: "P. J. Alling" <[EMAIL PROTECTED]> > > Well you've set yourself an enduring hobby. Any m42 lens and the > > earlier m37 and c, (video, 8mm(?)), mount), Bessamatic or > Kodak Retina > > IIIS/Reflex with the proper adapter, I think there may > even be a Leica > > S (m39) mount to m42 adapter which opens all of the Leica, > and copies > > such as Canon, (ah think of using a canon f 0.95 50mm), RF > lenses, not > > to forget Pentax 645 and 67 lenses. Then there's the TX T4 > Adapall etc. > > These are just the adapters I know of. The scope is > daunting and the > > number of different lenses is astounding. > > > > Andreas Pfotenhauer wrote: > > > Hi everybody, > > > > > > as mentioned in the subject, i need your help :-) > > > > > > I'm in the process of building a website that will hold a > database with > > > all lenses usable on Pentax bodies (with preference for > the digital > > > ones). I know, there is Bojidar Dimitrov's excellent > k-mount web page > > > (and some others), but thats not what i have in mind, > because "kmp" has > > > a pure technical perspective and it is restricted to > Pentax lenses, > > > while i would like to cover *all* lens producers that are > usable on a > > > Pentax body, and my project will offer more participation > for users, it > > > will be possible to rate lenses, add comments, there will > be a list of > > > external resources (URLs) pointing to lens reviews users > can add to, etc > > > .. somewhat like a Wiki but mostly with structured data > (so for example > > > one can easily filter for "ultra wide lenses that offer automatic > > > aperture, have a availability rating greater than 3 and a overall > > > quality rating greater or equal 4") and a set of > permissions with what > > > a particular type of user(anonymous, registered > user,staff,admin) can do > > > or not. i think you get a rough idea. > > > > > > Problem is, this is some amount of data i have to collect and to > > > maintain, thats why the whole thing is database driven > which in turn > > > means, no html skills will be necessary to add and > maintain data, and > > > I'm optimistic that I'll find sooner or later someone > who's interested > > > in helping me. > > > > > > Second Problem is, i don't know 99% of these lenses, and > thats why i > > > come to you guys. Getting functional characteristics of a > lens (weight, > > > size, focal length, aperture etc) is in most cases no big > problem, > > > thanks to google, but what i would like to have are > descriptions of the > > > lens, preferably from someone who had it in his hands and > did some > > > shots. Pictures of lenses are also very welcome. Of > course contributions > > > will be attributed and pictures will have a explicit > copyright notice, > > > with a link to the homepage of the contributor or > something similar, > > > except the contributor does not want to be mentioned. > > > > > > Website itself is still in alpha stage, so there is no > layout and only > > > some sample data, I'm still adding/removing/changing > features, but as > > > soon as i enter early beta I'll show you something :-) > > > > > > with kind regards from Germany, > > > Andreas > > > > > > PS: maybe i should mention that this will *not* be a > commercial thing, > > > actually i intend to place the whole thing under a > Creative Commons 3 > > > Attribution-Noncommercial-Share Alike License (horrible > name ^^), except > > > of course for picture contributors that wish to retain > their copyrights. > > > > > > > > > > > > -- > > Vote for Cthulhu. Why settle for a lesser evil... > > -- Dr. Jerry Pournelle > > > > > > -- > > PDML Pentax-Discuss Mail List > > PDML@pdml.net > > 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 > PDML@pdml.net > 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 PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
