Macrophotography article

<p>I posted a how-to article on macrophotography on my website, I hope you will find it useful!</p>

<p>You can find the article <a href="http://www.scottmurphyphotography.net/macrophotography.htm">here</a></p>

<p>Looks useful at a quick scan.</p>

<p>It's nice to give back this way. Thanks.</p>

<p>Nice job, Scott. Your illustrations are very well done. Perhaps you could add a brief bibliography of other resources? I would start with John Shaw's book (;0).</p>

 

 

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<p ><a href="../photodb/user?user_id=284018">Ben Bangerter</a> <a href="../member-status-icons"></a>, Apr 04, 2010; 03:15 p.m.</p>

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<p>Nice job, Scott. Your illustrations are very well done. Perhaps you could add a brief bibliography of other resources? I would start with John Shaw's book (;0).</p>

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<p>Thanks for the compliments Ben. Although did not use any other sources, the article was written pretty much off the top of my head over the course of about a week and a half. I did surf the web some to check the veracity of some things I said, however, but did not use any source in particular when writing. I am not familiar with John Shaw's book but will check it out.</p>

 

 

 

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<p>Thanks Scott!</p>

<p>I too love the macro world.</p><div></div>

<p>Thank you Very much for this article Scott. I just purchased my first macro lens recently the 105mm VR Nikkor and I am very eager to get into the macro photography. Funny enough one of the first subjects I photographed with it was an african violet flower similar to the one you use in your article.</p>

<p>Looks like a good introduction. Way to go, Scott.</p>

<p>Scott. Thanks for your time and for posting this.</p>

<p>A couple of things I don't think are correct:</p>

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<p>Extension rings increase the effective focal length of the lens but placing more distance between the optical center (node) of the lens and the film or sensor plane.</p>

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<p>My understanding is that extension ring don't effect the focal length of the lens in any way. They just allow the lens to focus closer to the subject. </p>

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<p>For 35mm or FX digital, a normal lens would be a fixed focal length lens in the 50 – 55mm focal length. Or, for a DX camera, something in the range of 30 - 35mm would be equivalent. Using a 50mm macro lens on a DX body will work out to around 75mm, allowing more sensor plane to subject distance and greater magnification.</p>

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<p>Again it is my understanding that the working distance between thelens and subject is entirely determined by the lens. So a 50mm lens on a DX camera will have the same working distance as a 50mm lens on a FX body. The effective focal length (75 on the DX) doesn't change the lens to subject distance although it does create some magnification.</p>

<p>Much of the rest looks OK although I haven't read it completely.</p>

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<p ><a href="http://www.photo.net/photodb/user?user_id=4361992">Steven F</a> <a href="http://www.photo.net/member-status-icons"><img title="Frequent poster" src="http://static.photo.net/v3graphics/member-status-icons/2rolls.gif" alt="" /></a>, Apr 05, 2010; 03:58 p.m.</p>

 

<p>A couple of things I don't think are correct:</p>

 

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<p>Extension rings increase the effective focal length of the lens but placing more distance between the optical center (node) of the lens and the film or sensor plane.</p>

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<p>Any time you increase the distance between the lens' nodal point (optical center) of the lens you increase it's focal length. More focal length means more magnification. That is how extension rings work.</p>