Laowa macro 25mm 2.8 2x-5x

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Yachtsbroker New Member • Posts: 3
Laowa macro 25mm 2.8 2x-5x

I have tried the manufacturer and dealer for answers 3x's, no response. So, if anyone has the following info., it would be appreciated. I am trying to see if I could adapt this lens for underwater use. Can someone verify the length from lens base(where it locks into camera) to tip when fully extended(5X)? It appears that it is only 2.56" when retracted (2.5X)? Where on the lens is the 82mm measured(at it's widest point at the base)? What is the diameter at the tip(front)? I assume the serrations on the lens barrel is where you rotate to extend barrel, why are there 2? I am trying to see if I can adapt extension rings on my macro port for the lens at maximum extension. I am also seeing if I can adapt a gear for minor lens adjustment. Thank you for any help. Cheers, Wayne

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