Photo Research 1505D-UBD1/2 mini-Pritchard spot Photometer, guaranteed 90 days, US $500.00 – Picture 0

Photo Research 1505D-UBD1/2 mini-Pritchard spot Photometer, guaranteed 90 days, US $500.00 – Picture 1

Photo Research 1505D-UBD1/2 mini-Pritchard spot Photometer, guaranteed 90 days, US $500.00 – Picture 2

Photo Research 1505D-UBD1/2 mini-Pritchard spot Photometer, guaranteed 90 days, US $500.00 – Picture 3

Photo Research 1505D-UBD1/2 mini-Pritchard spot Photometer, guaranteed 90 days, US $500.00 – Picture 4

Photo Research 1505D-UBD1/2 mini-Pritchard spot Photometer, guaranteed 90 days, US $500.00 – Picture 5

Photo Research 1505D-UBD1/2 mini-Pritchard spot Photometer, guaranteed 90 days, US $500.00 – Picture 6

Photo Research 1505D-UBD1/2 mini-Pritchard spot Photometer, guaranteed 90 days, US $500.00 – Picture 7

Photo Research 1505D-UBD1/2 mini-Pritchard spot Photometer, guaranteed 90 days, US $500.00 – Picture 8

Photo Research 1505d-ubd1/2 Mini-pritchard Spot Photometer, Guaranteed 90 Days

US $500.00

Antioch, California, United States
Jan 29th

Open on mobile:
QR code

Photo Research of Chatsworth (formerly Burbank) CA USA is the leading maker of photometers. This is the smaller $5000 (new) cousin of their famous Pritchard 1980A (which cost about $15000 new, seen in last photo). It is a spot photometer with a viewfinder system similar to that of a single lens reflex camera. A black dot in the viewfinder covers the half-degree spot to be measured. Half a degree was chosen because it approximates the acceptance angle of fovea of our eyes where our visual accuity is greatest during normal daylight vision, and some common size discs we see daily: the sun and the moon, each of which seen from earth subtend a half degree angle. Its least sensitive range is 0-200000 foot-lamberts (like looking at the sun), its most sensitive range is 0-0.2 foot-lamberts (where our eyes transition from photopic day vision to scotopic night vision. To get your answer in Nits, just multiply by pi. Ranges are in decades, and readout (mantissa) is on 0-2000 count digital display. Since detector is a photomultiplier, whose sensitivity varies with several factors, a stable internal cal reference is provided to achieve best accuracy (this is done with an internal target that glows due to decay of carbon 14 whose half life is over 7000 years). I do not have external standards to cal this item, but I can point you to some cal labs that can do it. Also, note that while a 3 and a half digit display can provide accuracy of the order of 0.1%, photometry's accuracy is limited to about 4% accuracy by the limits of of how brightness is defined and by the crudeness of standards all the way up the chain to and at NIST. While radiance can be more tightly defined and measured, brightness meters use a photopic filter overlayed on their detector to simulate spectral response of the average human eye as determined in 1929. These instruments are used on CRT and flatpanel displays, dashboard/cockpit illumination,... You are already offering me 14% less than you think you are: 10-11% for sales commission on items; and 3-4% for Paypal for money transfering. I suppose Paypal's 3% does buy some speed increase and consumer protection, and the 10% buys you the right to grade me with feedback, so be generous if you can. I am not looking for paycuts, and so the only reason I'll accept for offering me less on ebay is to reduce import tax into foreign lands as outlined next... I ship worldwide. International Airmail does not offer tracking and delivery confirmation, which Paypal & Ebay require. Ebay's Global Shipping Program does offer good tracking, but requires you to prepay duty based on ebay selling price. If you need to reduce tax, we need to reduce official 'sale price', which can be done by you making offer for less. I don't want to get paid less, so for me to accept your lower offer, you have to let me know that you will quickly pay me the difference in a 2nd Paypal (you'll have my paypal name from the 1st to enable the 2nd; eg: offer $50, pay it, and then pay the remaining $450, the tax will be cut by a factor of 10), and agree that I don't have to send you this good photometer until I'm fully paid. I don't mind enabling and helping you to save on tax, but I'm not willing to accept less for doing you this favor. You get a 14 day right of return for refund, so long as you pay full price, didn't breach tamper seals, send it back in same condition received, pack it as well as I did, and pay for all shipping. ITEM is wired for 115Vac. I do not know how easy or feasable it would be to switch it to 230Vac, but it only draws a few watts, so any stepdown xformer could handle such a small load. CALIFORNIA buyers pay sales tax.

Condition:	Seller refurbished: An item that has been restored to working order by the eBay seller or a third party not approved by the manufacturer. This means the item has been inspected, cleaned, and repaired to full working order and is in excellent condition. This item may or may not be in original packaging. See the seller’s listing for full details. ...	Brand	Photo Research
Country/Region of Manufacture	United States
Model	1505D-UB