UPDATE 18 May 2012
PEGASUS OPTICS owner, John Hall, is back from recent sabbatical. We do have sufficient blanks to accommodate most customers' size/focal ratio requirements, and time from order to receipt is minimal. We have several mirrors ready for delivery, listed under Completed Mirrors - Ready to Ship.
I have some remaining Pyrex and other mirror blanks that are priced for clearance, so in all cases you'll get a discount below the going rate. Since these are high-quality Pyrex or float glass, rather than the newer, pricier borofloat borosilicate, it will keep your investment at a minimum at no sacrifice in quality. Unless noted otherwise on the listing, the material is Pyrex, and there are no cosmetic defects.
With IAD 95% coatings as indicated
||State of Completion
||1 micron finish, polish ready.
||Cassegrain with 3.5" central hole, 4" secondary 4X, F/20 convertible Cass/Newt
||*F.L. can be made to customer need. Allow additional time for re-generating to curve if you want other than F/4.6
||Focal Length per customer requirement
Sale price includes 95% IAD coating with quartz (SiO2) overcoat. For 98% add $50.
In most cases, time from your order to delivery will be 3 weeks or less.
Availability and Pricing
Availability is limited to mirror blanks shown on the Mirror Price page.
Our quality standard is 1/10th wave wavefront peak-to-valley, <1/35 wave RMS, and >.95 Strehl ratio indicated error. Each mirror is etched with owner name, serial number, and optician signature. Traceability, quality data and certification package corresponding to the serial number is maintained in an historical file.
We are committed to providing customer service to you and to crafting your mirror to deliver superb and unparalleled optical performance. Our mirrors are unconditionally guaranteed. If you have any problem with the mirror delivered to you, you may return it for an immediate, no-questions-asked refund.