All Series IV SBIG models come with a standard 1.25" nosepiece.
Should you require a 2" nosepiece also, you will find one in our CCD Accessories section which matches the 2" Baader nosepiece normally used by SBIG. ST9E and ST2000XM models listed here automatically include a 2" nosepiece.
For use with a CFW-8 and/or an AO-7, please click on "More details" below to see the adapters necessary.
Please email me or call if you have any questions about the types of adapers you may need for your set up. We manufacture custom adapters also.