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dan

Lens adapter with built in ND filter wheel?

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dan    5
Hi new here, joined to ask the following question:

Does anyone produce (or has experimented making) a lens adapter (nikon to nex for example) with a built in ND filter wheel?

hope this isn't too stupid a question to ask. thanks,

dan

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EOSHD Pro Color for Sony cameras EOSHD Pro LOG for Sony Cameras
trying to recover costs of paying for 4x4 tiffen nd's I considered creating some dumb adaptors with slots to accept some cut down tiffen filters (cut into quarters 1"x1") which slot into the adaptor itself. a wheel of variable filters would be clunky, but a set of micro tiffens (professionally cut) out of bigger tiffens (bought at trade price) would sell well i imagine. Just line the slots in the adaptors with felt and it'll work great. Sod 4x4's :)

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[quote name='sanveer' timestamp='1353361850' post='21956']
Variable neutral density filter?
[/quote]

I use those all the time, but changing the filter for each lens is a small annoyance, and I'm not made of money so I can't put a variable ND on every lens I own haha.

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dan    5
The variable ND i've used has nothing either side of the 'sweet spot' ie. it feels very on or off. Maybe the more expensive ones would give me more to play with?

i am surprised no-one has tried to make more of the lens adapters than just 1 tripod thread -1 on top and 1 on the side would be nice.
rail clamps?
hot shoe mount?
cooling system ;-)?

an example of an adapter with extra mounting points:
http://www.teleskop-express.de/shop/product_info.php/info/p2837_Geoptik-T2-Adaptor-for-Nikon-lenses---w--1-4--thread.html

Re ND filter wheel built into the lens adapter: there is an effect on the focus point when putting something behind the lens but that could be minimised by using gels and accommodated by have an adapter with a micro adjustable barrel length.
perhaps a filter wheel a bit like this (but with fewer filters):
http://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=2805
an example of an adapter with extra mounting points:
http://www.teleskop-express.de/shop/product_info.php/info/p2837_Geoptik-T2-Adaptor-for-Nikon-lenses---w--1-4--thread.html

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