I have a Photon Instrument 127mm achromatic refractor OTA for sale. This is a great 5" refractor that shows very little false color. The OTA comes with a 10X50 achromatic finder and mounting rings. The technical specifics are:
Primary Objective lens: D=127mm f=1147mm
Primary Lens f/ratio: F=9
Primary Lens accuracy: 1/6 wave
Weight of main tube w/finder, mounting rings, etc. = 15 lbs.
I'll sell for $450 which includes shipping to CONUS. Please email with any questions. Thanks.