I'm consolidating my collection of eyepieces and my success depends on finding the right replacements for existing focal lengths. Looking to sell or trade away the items below and/or purchase Pentax XL SMC 7mm, 14mm or 21mm eyepieces. Please contact me if you have one available in good condition.
To offer for sale or trade I have:
7mm Siebert Standard 70 deg. $35.00
10mm Vixen Lanthanum 50 deg. 20mm ER $75.00
20mm Vixen Lanthanum 50 deg. 20mm ER $75.00
20mm Celestron Erfle 65 deg. $70.00
24mm U.O Konig II 60 deg. $60.00 **SOLD**
Parks 2X Barlow 3 element APO $60.00
All items include USPS 1st Class shipping w/delivery confirmation in the U.S. only (others by special arrangement). Payment accepted via PayPal (preferred), money order, or a personal check with time to clear.
I hope you see something that interests you - if so, please send a message.
St. Petersburg Astronomy Club