AP 178 f/9 10" Royce Optics Dall Kirkham Conservator of Tom Back's personal TMB 100/800 (Strehl .997!) PST
The opinions expressed herein are solely mine as an amateur astronomer hobbyist & consumer. Information herein was correlated from experience, discussions with others, & research from multiple sources freely available at time of posting. All reasonable care & skill was used, but no warranty is made as to accuracy, & liability cannot be accepted for errors/omissions. This is for information only and not intended nor implied to be a substitute for professional advice.
Quote:My personal one is:1 - NIB (New in Box). It is new and never used.2- LNIB (Like new in Box). Essentially looks unused even though it was lightly used or very carelfully used for some short term.3 - EXCELLENT - Used for a long term, but no marrs, dents, dings, or missing graphics. Coatings and lenses perfect. Some very light scratches on the barrel ok, but no deeper scratches and no set screw marks.4. VERY GOOD - Optics essentially perfect with maybe some very small issue in the off-axis or internal dust (should still disclose why not given an excellent rating). OK to have some very small or light issues on the barrel or housing - disclose them.5. GOOD - Has multiple issues, point them all out. None of them should be performance impacting. Small coating bright spot on lens makes me classify it as a maximum rating of Good.6. FAIR - Has performance impacting or some gross cosmetic issue on the optic or barrel or housing). Again, say what all the issues are. Examples would be a scratch or medium coating defect on the lens, even if off-axis
SyedTeeter STS 11 f/4.3 Zambuto | XT8i | XT8g | XLT 150 | C90 | EON 80mmAT Voyager and Nexstar SLT mountsEyepieces: Mostly TeleVue and PentaxDenk II BV'er, Earthwin PFS-SE, Pentax 10x50 PCF WP II
San Jose Astronomical Association, Director for Quick STARt Program, Docent at the Open Space Authority Custom Dobstuff 17.5" f4.5 Truss Dob, Orion XT8 8" Dob, ES AR127 Refractor, Orion Deluxe 100mm Refractor, EZ Touch Mount/Tripod, Zhumell 20x80 binos w/UA Unimount, and a ton of eyepieces.
Quote:I think the big thing IMHO is to point out any and all potentially negative things.Don't just list a bunch of positives. Or list that it has a box, bottom cap, clear optics, no nicks, small scratch on barrel. And purposely leave out the top cap (Which by the way can not be ordered or found anywhere except with new eyepieces). Yeah if I sound sore and *BLEEP* off I am - but at myself for not thinking it through and looking at the ad closely. Grading systems are subjective from one person to the next. Being upfront and honest is the best. Pointing out potential deal killers is being a standup person.
Incorrigible ocularholic. Keep calm, and carry on observing.
Quote:I wonder offhand how each grade would impact value. Would "Excellent" equate to a value of 85% of a LNIB example? I know this is not an exact science but it serves to help frame a sense of fair-value.
My eyepieces are made from the waste product of exploding stars.
10XTi 102XLT ST80A(2" Focuser); President, Eypieces Anonymous, Denver Chapter (Hello, I'm an eyepiece junky, what's your excuse?)
DAS Dark Site
Quote: There are so many little things to check when buying eyepieces (or anything for that matter).It will be up for sale one of these days and if rattle still exists it will be mentioned
Quote:that's a good problem to have :-)
Quote:One term thrown around a lot but not mentioned by BillP is "mint". My expectation for that term is no less than NIB, never been used, but a lot of folks seem to use the term for something that is better described as very good or excellent. Just one of my pet peeves, so I'll get off my soapbox now. Alex
Quote:I have a feeling that it's all of the above. Some know better, others don't and are just trying to unload the items.That makes buying a lot tougher for us.
Quote:When one pays $60 for a type 1, Nagler there is not much to check except your wallet... At that price, problems are to be expected. Not long ago, I purchased a Meade Series 4000 14 mm UWA. I paid $80.
It was described in the Astromart ad as being in "mint" condition. Upon close inspection, it appears to have never been used. The only problem is that it's too perfect to use and yet too pretty to sell... So it just sits and I use my 16 mm type 2 that has Tom Clark's ID engraved on it.
10" F/4.7 Modified Skywatcher Reflector, 38mm Orion Q70, 17mm Modified Ultima LX, 10mm TeleVue Delos, 7mm Pentax XL.