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Description M42x0.75 thread is a commonly used thread specification on astrophotography equipments such as cameras, filter wheels and many kinds of adapters and so on.  For this kind of thread, we designed this product for dust-protecting purpose. 

It has the following features:

1、It has M42x0.75 male thread and 2" diameter. It can be used on all cameras, filter wheels or other devices that have M42x0.75 female thread interface.2、It is made of aluminum alloy and has good quality and appearance

The pictures of the product are as follows.

Front side

Back side

Used on cameras

The dimension diagram of the product is shown in the following figure.