lauren_macintosh Posted March 14, 2012 Share Posted March 14, 2012 <p>any body know where i can find info on this lens tried Pentax<br> I got no where, on the front of the lens it state's SMC Pentax-M<br> need to understand it to use it correctly: Thanks</p> Link to comment Share on other sites More sharing options...
htarragon Posted March 14, 2012 Share Posted March 14, 2012 <p>What info do you need? As a macro, it only goes to 1:2, not 1:1. You can get to 1:1 with an extension tube. As you probably know, it's manual focus and on a modern Pentax, you won't have automatic aperture either - you'll need to use the green button.<br> If you Google:<br> "smc-M 100mm macro manual f/4", you'll get more info.</p> <p>Howard</p> Link to comment Share on other sites More sharing options...
lauren_macintosh Posted March 14, 2012 Author Share Posted March 14, 2012 <p>thank you Howard very much what I was to find is lens info that usually comes with the lens when you buy it:</p> Link to comment Share on other sites More sharing options...
stemked Posted March 14, 2012 Share Posted March 14, 2012 Hi Lauren Try Googling Boz and Pentax, You should come to Boz's excellent web page that has information. I have the optically identical A version of this lens, but as noted by Howard you M version has no electronic connectors so you will need to use it in manual exposure mode (the A version allows you to use auto exposure options). So the lens is more work, but once you nail it down it is optically a brilliant lens. And the lens is a real pleasure to manually focus, perhaps the most enjoyable manual lens I own to manually focus. Link to comment Share on other sites More sharing options...
lauren_macintosh Posted March 14, 2012 Author Share Posted March 14, 2012 <p>Douglas : Thanks for the info on the boz site :</p> Link to comment Share on other sites More sharing options...
hinman Posted March 14, 2012 Share Posted March 14, 2012 <p>I had this lens for a while and it doesn't have the M keyword and the rear is typical of Pentax K lenses. You need to use green button for metering. It is a great lens especially in the focusing ring and build.<br> <img src="http://farm4.staticflickr.com/3255/2434707207_0b90f0d875_z.jpg" alt="" width="640" height="623" /><br> with K10 and I mentioned it in <strong><a href="http://www.techtheman.com/2008/04/pentax-smc-100mm-f40-macro-12.html">my blog post</a></strong> before</p> Link to comment Share on other sites More sharing options...
lauren_macintosh Posted March 14, 2012 Author Share Posted March 14, 2012 <p>Hin Man : i was playing with and got this to-nite not great but it will get there</p><div></div> Link to comment Share on other sites More sharing options...
MattB.Net Posted March 15, 2012 Share Posted March 15, 2012 <p>I really like mine too. Mine does have PENTAX-M next to the front element. It even has some fungus in it but as long as direct light isn't hitting the front element I can't see it in the photos.<br> <a title="IMGP2790.jpg by MattB.net, on Flickr" href=" src="http://farm7.staticflickr.com/6210/6113374415_90ae0d67f1_z.jpg" alt="IMGP2790.jpg" width="425" height="640" /></a></p> Link to comment Share on other sites More sharing options...
User_502260 Posted March 15, 2012 Share Posted March 15, 2012 <p>Hin, that's a beautiful shot. I use a 90/2.5 Tamron SP [52BB] with my Pentax K-x.</p> Link to comment Share on other sites More sharing options...
doug_nelson3 Posted March 16, 2012 Share Posted March 16, 2012 <p>An inexpensive Pentax screw-to-K adapter will open up the 100mm f4 SMC to you. You will have the same manual focus and metering issues as your M, but you may be able to find it cheaper. Mine was about $75. I don't think you can go wrong with any macro in that 90-100mm range.</p> Link to comment Share on other sites More sharing options...
lauren_macintosh Posted March 16, 2012 Author Share Posted March 16, 2012 <p>You all have been right about this lens SMC-Pentax-M 100mm F-4 macro<br /> this is shot as regular not macro but I like it very much:</p> Link to comment Share on other sites More sharing options...
lauren_macintosh Posted March 16, 2012 Author Share Posted March 16, 2012 <p>Now for the Photo</p><div></div> Link to comment Share on other sites More sharing options...
laur1 Posted March 16, 2012 Share Posted March 16, 2012 <p><a href="http://kmp.bdimitrov.de/lenses/primes/short-tele/M100f4-Macro.html">http://kmp.bdimitrov.de/lenses/primes/short-tele/M100f4-Macro.html</a></p> Link to comment Share on other sites More sharing options...
andrewg_ny Posted March 17, 2012 Share Posted March 17, 2012 <p>I have one of these too (mine is Pentax-M). Optically leaves little to be desired, is more compact and costs less than half what a f/2.8 1:1 Pentax-A or newer will go for. 1:2 is close enough most of the time.</p> Link to comment Share on other sites More sharing options...
lauren_macintosh Posted March 20, 2012 Author Share Posted March 20, 2012 <p>I thank you all for answering on this topic here ; thanks again: Lauren</p> Link to comment Share on other sites More sharing options...
audun_sjoeseth1 Posted March 22, 2012 Share Posted March 22, 2012 <p>Here is the M: http://www.pentaxforums.com/lensreviews/SMC-Pentax-M-100mm-F4-Macro-Lens.html<br> I have the K: http://www.pentaxforums.com/lensreviews/SMC-Pentax-K-100mm-F4-Macro-Lens.html<br> Both are great lenses. :)</p> Link to comment Share on other sites More sharing options...
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