This is a very handy universal iris/flange/ whatever you want to call it. Width across locking knobs is about 5 1/4", width other way is about 4 1/2". Maximum opening of aperture is 78-80 mm and the minimum is 20mm, so you can hold lenses within that diameter range. Probably most easily installed on at least a 2D/Deardorff 6x6 board.
I've used this for several years but recently got one identical to it except for color, so hopefully someone else can use it now. What looks like rust is where the blades close/open against each other. This works perfectly and has worked for me for years.
Price: $275 shipped in a flat-rate padded envelope anywhere in the world USPS sends priority mail. Paypal ok. If interested, email or PM me and don't post here. $$ to APUG if sold here.
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