I have ordered and paid for the Olympus 40-150mm f2.8 with 1.4x converter from an Australian store for a great price. My order has not been posted at this time. I already have the 35-100mm f2.8 which is an amazingly sharp lens and is much smaller than the new Olympus but this great price got me a bit excited. At this stage I would not sell the 35-100 as it is much smaller and lighter than the new Oly lens. I also have the Oly 75-300 which is only good in brighter light due to the slow aperture and softens from 200mm and worse after 250mm I thought this lens with the 1.4x (giving me 210mm at f4) would be a better lens and I'm sure it will be but it is much heavier than any lens I currently own and I'm just not sure about the purchase now and whether I can handle the weight and size (I sold all my Canon gear because of weight and size) I know I will love the focal length with or without the 1.4x but it's the weight I'm concerned about as I am starting to have a problem with my hands and they are getting noticeably worse at the moment. Lens not available in any local shops to have a look at or try on the body and whilst camerasize.com shows it next to the 75-300 it doesn't help without actually having it mounted on the body. I don't like posting threads like this but I really don't know what to do. Cancel the order? Let it come and try it and if OK keep it? Let it come and try it and if too heavy sell it ... but I'm not prepared to lose money on it so maybe I should just cancel. I don't think I have ever had a lens purchase keep playing on my mind like this one has. e.g. Will it be too big? Do I really need the lens? Do I really need that focal length? Won't the 75-300 do for the amount of long tele that I shoot .. but I would like a faster lens than this. It's a lot of money for something I might not use a lot due to its weight and I already have the 35-100. Will I be happy to carry it with me when out shooting? Should be good for video. Good for macro with nice blurred backgrounds (I don't have a macro lens) ..... This and more keep going around in my mind. HELP!