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Stacking Leica apo 2x extenders


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<p>Results are more dependant on your ability to shoot with a 720mm lens you can't just put that on top of a tripod and lock it down and end up with a sharp photo. How is you long lens technic? Have you shot with a lens of this lenght before?<br>

Your gonna need shutter speeds of at least 1/250th to even have a chance. So you will be lucky on a nice brite day with fast film to be able to stop down 1-2 stops if that.<br>

I shoot with a Canon 500mm f4.5L S.S.C. and a 2X-A this ends up f9.0 and with 400 ASA it is still everything a guy can do to get a nice sharp photo 50 feet away. And I use a BIG ball head and a Berlebach Wooden 2pc leg tripod with over a 22kg rating.</p>

 

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