| Joined: | Wed Apr 4th, 2012 |
| Location: | Goose Creek, South Carolina USA |
| Posts: | 418 |
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don't quiet see how your getting that iain ,the 400mm -f.5.6 will not except under exceptional lighting conditions take a t/c and even if you tape off the first three pins the results are at best putting it mildly crap .
if your taking into account your crop factor as written that will give you the 600mm but you can do that with nikon anyway .yes nikon could definetly do with a lens in the same genre as the canon 400 but something will turn up eventually
What is accomplished by taping the first three pins blackfox?
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Gary