I am thinking of getting a 16" dob with a pegasus mirror. The mirror has a chip and a 1 1/2 cm stress fracture in it as the picture shows. It was caused by a rock falling on it. The owner really doesn't want to give any type of warranty with this. Does anyone know if the fracture has a good chance of growing? Thanks for your help
I also posted this in the telescope making forum
Marty
I also posted this in the telescope making forum
Marty
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