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Nikon DSLR Cameras
D7200
Telephoto lens and a doubler
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<blockquote data-quote="nickt" data-source="post: 488230" data-attributes="member: 4923"><p>You won't really find people here using a screw on wide angle adapter. I believe they are more of a novelty item. I've never used one, so maybe not fair for me to say that. I do suspect they would provide some benefit on something like a 50mm prime if that's all you had. With your lens at 55, it might work, probably not as good as simply zooming out to 18mm. But using it at 18mm, I would expect vignetting because the lens is already scooping in light from a wide angle so the device itself is in the field of view. Even stacking two regular filters will cause vignetting on some lenses. It doesn't take much beyond the filter threads to get in the way.</p><p>Does the doubler screw onto the front of the lens as well or does it go behind the lens? Real 2x converters can give autofocus problems as mentioned above. It should focus manually. If it screws on the front, it might just be a magnifier, like a macro filter. That would prevent you from focusing to infinity but let you focus much closer on small subjects.</p></blockquote><p></p>
[QUOTE="nickt, post: 488230, member: 4923"] You won't really find people here using a screw on wide angle adapter. I believe they are more of a novelty item. I've never used one, so maybe not fair for me to say that. I do suspect they would provide some benefit on something like a 50mm prime if that's all you had. With your lens at 55, it might work, probably not as good as simply zooming out to 18mm. But using it at 18mm, I would expect vignetting because the lens is already scooping in light from a wide angle so the device itself is in the field of view. Even stacking two regular filters will cause vignetting on some lenses. It doesn't take much beyond the filter threads to get in the way. Does the doubler screw onto the front of the lens as well or does it go behind the lens? Real 2x converters can give autofocus problems as mentioned above. It should focus manually. If it screws on the front, it might just be a magnifier, like a macro filter. That would prevent you from focusing to infinity but let you focus much closer on small subjects. [/QUOTE]
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Nikon DSLR Cameras
D7200
Telephoto lens and a doubler
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