Antique J H Dallmeyer No 1a London Rectilinear 4 1/2” F/11 Brass Lens VERY RARE. Very rare antique J. 1a London Rectilinear 4 1/2” brass lens. It comes mounted on its mounting ring. We determined its focal length by focusing light through it on to a flat surface. It may be off by a fraction on an inch either way. The numbering system for lenses of this vintage often didn’t use the standard “f” aperture scales. We have attached a table for converting the Dallmeyer scale into standard f stops. The lowest number is worn away, but we believe it to be 20, which corresponds to f/11. There is some scuffing and scratching on the barrel’s exterior, but nothing major. There are a few small cleaning marks on its glass but it is free of any fungus, haze or separation to its elements. The lens is usable for 8 1/2 x 6 1/2. It might cover 8″x10″ but we cannot guarantee it. See photos and the Description above. NOTE ON VINTAGE LENSES: We perform basic functionality tests and visual inspections of our vintage lenses. Decades-old lenses should be serviced/CLAd for best performance. IF YOU ARE ADAPTING. A vintage lens to a camera for which it was not made, your results will vary depending on both the adapter you are using and, of course, your camera. With most adapters, your focal range will be limited. You are not likely to obtain infinity focus and you may experience vignetting. We are happy to try answering your questions, but we are limited by the cameras, lenses and adapters we have used personally. You choose that option. We are happy to accommodate local pickups in most cases where an item is heavy or bulky. We will simply ask you to sign an invoice indicating that you have received your item and to present photo id. This is for your protection and to ensure that only. Can receive your item. We can usually resolve any issues quickly. We are committed your happiness! Once a case opened, our flexibility to help you is more limited. Any product you return must be in the same condition in which you received it and in the original packaging. Please keep the receipt. You may not, without our written authorization, disassemble or remove a cover fastened by screws or rivets. You may not, without our written authorization, have an item serviced or cleaned. Or do these things yourself. We take pride in serving customers worldwide and have customers in over 50 countries. If this happens, let us know and we will give you a more precise quote. We understand if the duty imposed by your country makes certain items unaffordable. Unfortunately, we have no control over this. We are buyers of camera and movie equipment, fine mechanical and electronic watches and much more! The item “Antique J H Dallmeyer No 1a London Rectilinear 4 1/2” F/11 Brass Lens VERY RARE” is in sale since Tuesday, July 14, 2020. This item is in the category “Cameras & Photo\Lenses & Filters\Lenses”. The seller is “vssoutlet” and is located in Philadelphia, Pennsylvania. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.
- Brand: Dallmeyer
- Compatible Brand: For Horseman
- Exterior Material: Brass
- Focal Length: 11.5mm
- Focus Type: Fixed/Prime
- Mount: Lens Board
- Type: High Quality
- Country/Region of Manufacture: United Kingdom