File:Macro Bellows vs. T-Adapter.jpg
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English: A macro bellows, even when fully retraced like in this photo, will introduce a lot of extension (in the case of this particular one, over 40 mm), resulting in a loss of tons of working distance while introducing a lot in terms of magnification.
If all you want to do is to give your M42 lens just a slight bump on its working distance/magnification, you can use a T-adapter in place of an extension ring. Of course, a T-adapter costs a lot more (around $15) than a cheap set of 3 extension rings so it doesn't make sense to purchase one just for this purpose. But, if you're like me and into astrophotagraphy, there is a 99% chance that you already own a T-adapter, so this is a good thing to know. An added bonus is that with a T-adapter, you get to have the threaded end, to which you'll screw your M42 lens, and your camera's native bayonet mount on the other end, making the attaching/releasing of the lens a breeze, compared to a straight-up M42 extension ring used in combination with an M42 adapter (especially in the case of the useful, but clunky, Pentax K mount M42 adapters). |
| Date | |
| Source | Bellows vs. T-adapter |
| Author | RawheaD Rex from Boston, USA |
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This image was originally posted to Flickr by rawheadrex at https://www.flickr.com/photos/88929764@N00/3177952857. It was reviewed on 28 August 2009 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
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| current | 16:46, 25 August 2009 | | 1,024 × 682 (89 KB) | Jacopo Werther (talk | contribs) | {{Information |Description=A macro bellows, even when fully retraced like in this photo, will introduce a lot of extension (in the case of this particular one, over 40 mm), resulting in a loss of tons of working distance while introducing a lot in terms o |
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