I dont understand! I recently bought a pair of Proxar +2 close up lenses from ebay for my Rolleicord Vb. They are in original worn leather case, excellent condition and even have the original paperwork with them. I payed (including postage & packing) £2.48. This is why im not too bothered if i cant use them. Mt problem is that the two lenses are different. The first is as i expected both to be, a Bayonet 1 fitting that attaches with a satisfying click to either viewing or taking lens. The other is smaller and doesnt have a bayonet fitting at all. Just seems to slip on but theres no way it will fit either lens as its too small. I thought i'd been ripped off but looking at the paperwork, it gives the two numbers that are on each lens and even the case is moulded so that it takes a big lens and a smaller one. Am i being super dim here? Whats going on?! I assumed that i would get two bayonet 1 fitting lenses. Help me TPF... you're my only hope.