Sam255

Hi, I am currently planning on buying a William's Optics Z73 Refractor to use as my main imaging scope, with a crop-sensor Nikon DSLR (D7200). While looking at a field flattener to use on the setup, I realized that the William's Optic 73A field flattener is sold-out in every stores around. I was wondering if it was possible to use another field flattener, like the Explore Scientific 2'' (https://www.otelescope.com/store/product/3035-explore-scientific-2-field-flattener-for-ed-apo-es-ffedapo-00/) , which seems to have the same size and fitting as the other one, and seems to allow for the same 2'' filters. It doesn't say anything about compatibility with other brands, but I am curious to see if it would still be a good fit. Thanks in advance, Sam