Great item, great fit and does the job.

Excellent service and very quick delivery as always

The mask is very well made, In fact you'd hardly notice it was 3d printed. Fit is just right, You do need to cut off the small tab thats on the bottom of it in order to make it fit the dew shield.

Bought the mask in conjunction with the dew shield, so far can't fault the seestar autofocus been spot on. However would be good if the mask fitted on the end of the dew shield just as they do with most other refractory (slight oversight) this would help in not disturbing object alignment because either way that you look at it you have to push fit one and remove and push fit the othere. The othere issue is mine has arrived in gloss finish so have hade to flock the dew shield. I know that matt three d printing is possible as I have had a tri mask made for my 12 inch sct from a vendor on a popular auction site !

This is a well made mask. The size is just right for it stay in place while focusing and not be a struggle to remove and inadvertently move the scope pointing. The mask gives nice sharp spikes that make accurate focusing ease to do. I have found that the S50 auto focus is very accurate, so this mask can be used just to confirm the focus if you wish.

This looks well made, but I have not yet tried it out, as the clouds keep coming.