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Creative possibilities with vintage primes? (Stacking, ext tubes, reverse mnt, etc.)
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<blockquote data-quote="gustafson" data-source="post: 504509" data-attributes="member: 40735"><p>Made some amazing progress this evening with a little help from an article on coupling two lenses to get extreme closeups, viz. <a href="http://coinimaging.com/coupled_lenses.html" target="_blank">Coupled lenses in macro photography</a>. So the big tip in this article is to mount a telephoto lens on the body, and a wide-angle lens in reverse on the telephoto using a coupling adapter. Well, I couldn't wait to get a coupling adapter to test the theory, so I used packing tape (pl. don't hate) to hold these old primes against each other. I tried the following combinations:</p><p></p><p>1. 28 f/3.5 reverse mounted on 200 f/4 (which in turn was mounted normally on D3300)</p><p>2. 50 f/1.8 E reverse mounted on 200 f/4</p><p>3. 28 f/3.5 reverse mounted on 105 f/2.5</p><p></p><p>To my surprise, I was actually able to get decent photos using these combos. The one thing I saw right off was darkening of the viewfinder image, suggesting a fair amount of light was being lost, possibly in part due to my makeshift coupling adapter. The other thing was I needed to be rather close to the subject in order to focus on it. This often cast a shadow on the subject, so I had to adjust the angle and use significant exposure compensation (+5EV) to get usable images. As regards focusing, rather than turn the focus wheel(s), I found it easier to move toward or away from the subject to bring it into focus. I read somewhere that it helps to have both coupled lenses focused at infinity, and that seemed to work. I also implemented the tip in the article to keep the telephoto wide open, and the reversed wide-angle stopped down to the min. In practice, stopping the wide-angle down to minimum aperture gave me dark images, so opened them back up some.</p><p></p><p>Image 1 is of the top of my Macbook, taken with lens Combo 2. Didn't realize anodized aluminum was so rough.</p><p>Image 2 is of my 200 f/4 taken with lens Combo 3.</p><p>Image 3 is of a quarter taken withe lens Combo 3.</p><p>Image 4 is of a Nikon lens cap taken with lens Combo 2.</p><p></p><p>These images are uncropped, and only Image 1 has any PP (very minor). The images were downsampled to allow posting here, but were otherwise untouched. </p><p></p><p>Pretty thrilled to discover this hack and get more potential use out of these vintage primes!</p><p></p><p></p><p></p><p> [ATTACH]185643[/ATTACH][ATTACH]185644[/ATTACH][ATTACH]185645[/ATTACH][ATTACH]185646[/ATTACH]</p></blockquote><p></p>
[QUOTE="gustafson, post: 504509, member: 40735"] Made some amazing progress this evening with a little help from an article on coupling two lenses to get extreme closeups, viz. [url=http://coinimaging.com/coupled_lenses.html]Coupled lenses in macro photography[/url]. So the big tip in this article is to mount a telephoto lens on the body, and a wide-angle lens in reverse on the telephoto using a coupling adapter. Well, I couldn't wait to get a coupling adapter to test the theory, so I used packing tape (pl. don't hate) to hold these old primes against each other. I tried the following combinations: 1. 28 f/3.5 reverse mounted on 200 f/4 (which in turn was mounted normally on D3300) 2. 50 f/1.8 E reverse mounted on 200 f/4 3. 28 f/3.5 reverse mounted on 105 f/2.5 To my surprise, I was actually able to get decent photos using these combos. The one thing I saw right off was darkening of the viewfinder image, suggesting a fair amount of light was being lost, possibly in part due to my makeshift coupling adapter. The other thing was I needed to be rather close to the subject in order to focus on it. This often cast a shadow on the subject, so I had to adjust the angle and use significant exposure compensation (+5EV) to get usable images. As regards focusing, rather than turn the focus wheel(s), I found it easier to move toward or away from the subject to bring it into focus. I read somewhere that it helps to have both coupled lenses focused at infinity, and that seemed to work. I also implemented the tip in the article to keep the telephoto wide open, and the reversed wide-angle stopped down to the min. In practice, stopping the wide-angle down to minimum aperture gave me dark images, so opened them back up some. Image 1 is of the top of my Macbook, taken with lens Combo 2. Didn't realize anodized aluminum was so rough. Image 2 is of my 200 f/4 taken with lens Combo 3. Image 3 is of a quarter taken withe lens Combo 3. Image 4 is of a Nikon lens cap taken with lens Combo 2. These images are uncropped, and only Image 1 has any PP (very minor). The images were downsampled to allow posting here, but were otherwise untouched. Pretty thrilled to discover this hack and get more potential use out of these vintage primes! [ATTACH=CONFIG]185643._xfImport[/ATTACH][ATTACH=CONFIG]185644._xfImport[/ATTACH][ATTACH=CONFIG]185645._xfImport[/ATTACH][ATTACH=CONFIG]185646._xfImport[/ATTACH] [/QUOTE]
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Creative possibilities with vintage primes? (Stacking, ext tubes, reverse mnt, etc.)
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