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Photography Q&A
When to use a teleconverter?
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<blockquote data-quote="pforsell" data-source="post: 615401" data-attributes="member: 7240"><p>For those who just want a quick glance without looking at the full-res full-size images, here are the center crops from No-TC image at 200 mm and TC34 image at 680 mm. It is easy to see the TC34 image resolves all the fine lines all the way up to the "20" mark, whereas the cropped No-TC image stops at somewhere between 6~7. At that point the 9 black lines start merging into 8 black lines, which is false detail, aka aliasing. That point is where the resolving power ends.</p><p></p><p>Here it is obvious that using stacked teleconverters beats cropping by a huge margin, delivering at least 3x the resolution.</p><p></p><p></p><p><strong>TC34 + 200/2VR2 @680 mm</strong></p><p></p><p>[ATTACH]251029[/ATTACH]</p><p></p><p></p><p></p><p><strong>200/2VR2 @200 mm, no TC</strong></p><p></p><p>[ATTACH]251030[/ATTACH]</p></blockquote><p></p>
[QUOTE="pforsell, post: 615401, member: 7240"] For those who just want a quick glance without looking at the full-res full-size images, here are the center crops from No-TC image at 200 mm and TC34 image at 680 mm. It is easy to see the TC34 image resolves all the fine lines all the way up to the "20" mark, whereas the cropped No-TC image stops at somewhere between 6~7. At that point the 9 black lines start merging into 8 black lines, which is false detail, aka aliasing. That point is where the resolving power ends. Here it is obvious that using stacked teleconverters beats cropping by a huge margin, delivering at least 3x the resolution. [B]TC34 + 200/2VR2 @680 mm[/B] [ATTACH=CONFIG]251029._xfImport[/ATTACH] [B]200/2VR2 @200 mm, no TC[/B] [ATTACH=CONFIG]251030._xfImport[/ATTACH] [/QUOTE]
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Photography Q&A
When to use a teleconverter?
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