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The purpose of rail support systems?

Started Oct 17, 2021 | Questions thread
Off The Mark Veteran Member • Posts: 6,934
Re: The purpose of rail support systems?

Andrew S10 wrote:

I remember reading about someone ruining their photo prime with a light-weight clamp-on matte box. It was the type of lens where the front threads and element move slightly as you focus, and it just wasn't designed to handle that much leverage, so the helicoid wore out.

Yeah, that's one of the reasons I have been avoiding getting one of those mini teleprompters that fits on the lens. Just not sure I want to put anything like that on the end of a lens.

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