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DIY filter thread?

Started Apr 28, 2019 | Questions
katy ferris New Member • Posts: 3
DIY filter thread?

I've been looking into buying the Laowa 25mm f/2.8 2.5-5x ultra macro lens for my Sony a6300, but there isn't a filter thread. Laowa has a custom twin flash (which is out of my price range) and a ring light, but I'd like to attach a ring flash with a filter thread. Does anyone have any ideas on how I could do this? Like a way to somehow add a thread?

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Sony a6300 Venus Laowa 25mm F2.8 2.5-5X Macro
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petrochemist Veteran Member • Posts: 3,619
Re: DIY filter thread?

katy ferris wrote:

I've been looking into buying the Laowa 25mm f/2.8 2.5-5x ultra macro lens for my Sony a6300, but there isn't a filter thread. Laowa has a custom twin flash (which is out of my price range) and a ring light, but I'd like to attach a ring flash with a filter thread. Does anyone have any ideas on how I could do this? Like a way to somehow add a thread?

I've added filter rings to a couple of lenses by simply gluing a suitable stepping ring to the outside of the lens flush with the front face. Hot melt glue is easily removable if you decide to undo the modification.

A lens as wide as 25mm may need a fairly wide filter.

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rabad New Member • Posts: 2
Re: DIY filter thread?

I am in the same boat. I bought the laowa 25mm and I have Yongnuo Twin flash. I am thinking of getting second lens front cap and glue a filter ring to it like 48 or 52. If you already found a solution let me know.

Russel_Sprouts Regular Member • Posts: 302
Re: DIY filter thread?

katy ferris wrote:

I'd like to attach a ring flash with a filter thread. Does anyone have any ideas on how I could do this?

belatedly, for your consideration: The inner diameter of the Laowa ring light is 33.5mm and if you skip the notion of a "threaded" solution (I wonder which filters, plural, you had in mind, and how frequently you had expected you would want/need to remove or swap the filter)...

you could wrap a strip of rubber or craft foam around the perimeter of a 28mm, 30mm, or 30.5mm filter and friction-fit it into the the ring light opening.

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