To our store's visitors:

Dear visitors,we are Cnscope,and we are professional microscope supplier, we have our own factory and also have several co-operative enterprises,so we have multiple microscope part,in future,there will be more items listed in our ebay store,we have our own technicians to check all the items before sent out,and also have professional workers to pack packing,so there is no extra worries.welcome bid,if you have any more question pls feel free to contact us first,thankyou,welcome wholsale also!!

The reason to have both M42x1mm female/ male threads is that you can use easy-to-get universal M42X1mm adapters with this one for your application...  Otherwise, with only the Iris Diaphragm itself, you need to find a way to attach it to your lens/adapters, etc... which often times is not easy or at least not elegant :-)

these are high quality item, usually used in camera or projection lenses, can also be used with some mount adapters for adjusting the aperture.

the dimension of the Iris:

Max. aperture diameter: appro 25mm

min. aperture diameter: appro 1mm

the dimension of the outer casing:

outside diameter: appro 54mm

thickness: appro 13mm (w/o the male M42 thread); appro 17mm (w/ the male M42x1mm thread)

Diaphragm blades amount: 14

Material for metal,reliable performance.Durable.

When you close or open the diaphrag, both screws (male and female) remain at the same position

one pc adjustable Iris aperture 1-25mm with male / female thread M42x1mm for camera

We accept paypal only!it is easy and safe!

All payment must be made within 7 days after the auction ends. Very Appreciated.

The item will be shipped via international express as soon as the payment cleared and after the confirmed shipping address & phone number are provided.

item will be shipped by epacket to United sates,United kingdom and Australia.it will take about 7-13 days.

And pls note that other countries,item will be shipped by registered mail.It usually takes about 10-25 working days to delivered. Delivery tracking number will also be provided to buyers.

For all orders, please note that:

we ship the item to the address which list on the paypal,pls make sure the address on your paypal is correct.

Because the package was shipped by registered mail,if the shipping is delay,pls contact us first, So we can resolve the problem for you.

We offer 14 days return policy. 100% satisfaction is our goal!

If you have any problem when you receive the package please email us first asap. We will do our best to resolve problems for you .

About the e-mail from our customers,we will reply within one day,but if you did not get reply within one day,pls give us more time.

If you are satisfied with our items and service,pls do not forget left your positive feedback,very appreciated.