Sale Prices Effective 12 June 09 (Updated 7-24-09) The mirror optics in the table below are premium mirrors. Their supplies are limited, as shown, and their availability is on a "first-come/first-serve" basis. They are near completion, in most cases, except for coating, and will be delivered within six weeks of your order. (We will arrange to custom-coat your mirror to your selected reflectivity percentage.) When these are gone the price will increase by $200 - $1000 to reflect this year's blank prices. | | | | With IAD coatings as indicated | | Dia. | F/ratio | Thickness | 90% | 95% | 98% | Status as of 12 July 09 | | 14.5 | F/4.2 | 1.625" | $1700 | $1750 | $1800 | 1 remaining | | 16 | F/4 | 1.625" | $2150 | $2200 | $2275 | 1 remaining | | 18 | F/4.2 | 3.0" * | $2800 | $2900 | $2975 | 1 remaining | | 24 | F/4.5 | 2" | $6600 | $6700 | $6875 | 1 remaining | | 30 | F/4.5 | 2" | $12,000 | ** 30" is not Avlb in 95%/98% | 1 remaining | Prices are subject to change without prior notice. These precision-annealed, blanchard ground mirrors are supplied in thickness indicated on the price list above. Each mirror is supplied with serialized certificate noting wavefront peak-valley, RMS and Strehl error, with detailed explanation of test results. *Note: The 2.5" thick 18" mirror is a borosilicate (Pyrex BK-7740) cellular mirror with ½" thick front and back plates, 6 each 2" x ½" x 6" radial ribs, 12 each 2" x 4" radial ribs, and 3" back plate perforation. Weight is 26 lbs. (1.6 "standard" mirror is ~30 lbs.) Payment - Make checks payable to Pegasus Optics. If you pay through Paypal, please include 3% Paypal fee equal to purchase price times 3%. We cannot directly debit your account using your credit card at this time. Bargain Basement Mirrors These mirrors are discounted for cosmetic defects or other conditions as noted, beyond the deep discounts shown above for premium mirrors. They are guaranteed to perform to the same optical criteria as the premium blanks above. The F/ratio for ***-annotated mirrors will be made to your preferred focal length, +/- .5". Fabrication and coating will require a minimum 1 month delivery time, depending on status of other orders, but guaranteed not to exceed 120 days. (I will rebate 5% of mirror price for each partial month of delivery exceeding negotiated date of promised mirror completion, and I will put this in writing.) | | | | With IAD coatings as indicated | | Dia. | F/ratio | Thickness | 90% | 95% | 98% | Conditions/Cosmetic defects | | 12.3" | *** | 1.5" | $1350 | $1400 | $1450 | Undersize diameter (.2") | | 12.5" | F/5 | 2.125" | $1500 | $1550 | $1600 | Cass. 3.5" perf, has 4" secondary | | 14" | *** | 1.4" | $1200 | $1250 | $1300 | Plate glass, minor edge inclusion | | 16" | *** | 3" | $1800 | $1850 | $1925 | Thickness oversize | | 18" | F/4.3 | 1.6" | $2500 | $2550 | $2625 | 1/8" quill mark | | 20" | F/4.3 | 1.6" | $3100 | $3200 | $3275 | ½"x1/8" (circular) edge face chip | | 20" | F/4.3 | 1.55" | $3300 | $3400 | $3475 | 1/8" periphery chip | | 24" | F/4.5 | 2" | $4000 | $4100 | $4200 | Bubbles in surface, internal striae |
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