Hi John & Chip One list of MTF-curves is: http://www.photodo.com/nav/prodindex.html
Here you can see the differences of some lenses you mentioned. Here you can also see that you can't say the newer lenses are almost the same as older lenses. For example the 28-80 IV has a grade of 2.2, where the original 28-80 had one of 3.2, beside that the build-quality of the original is much better. (Metal mount, USM, with FTM, and distance scale). The comparising of the 70-210 3,5-4,5 to the current 80-200 4,0-5,6 show a grade that are almost the same 3.1 /3.0, but the build of the 70-210 is the same as the original 28-80. So look at wat the differences exactly are and make the best choice for yourself, depending on your needs and budget. Drikus (a Young Guy) ----- Original Message ----- > > > > Where can I get MTF curves for older/discontinued EF lenses? The ones I'm > > looking for now are the 35-135/4-5.6 USM, 70-210/3.5-4.5 USM and the > > 28-70/3.5-4.5 II. > > > > I've heard that these are optically very good, better than current > > offerings. Any comments or opinions? > > > > Thanks, > > John > > Hi John, > > They may appear in the old Lens Work I book from Canon, I cannot say for > sure as I have the newer Lens Work II book and they do not appear in this > reference book. These are all older lenses and are fairly easy to find and > inexpensive to buy used now. > > What you heard about these lenses being better than the current version > consumer lenses was probably a yarn spun by some OG (Old Guy). From what > I've seen, read and heard they are not as good optically as the current EF > 28-80 3.5-5.6USM, EF 35-80 4-5.6USM, EF 28-105 3.5-4.5USM or EF 28-135 > 3.5-5.6USM IS consumer lenses. Some of them may be close but not really > close enough to pick the older lenses given a choice. But, IMO they were > some of the best of the consumer EOS mount lenses of their generation and if > working OK are not bad lenses, just not as good as you can get in the > current consumer lens line-up especially if you are willing to buy second > hand. Personally, I have no problems buying second hand lenses and bodies, > just take care in selecting, inspecting and testing the lenses you're > interested in BEFORE you buy and you should have no problems. > > > Regards, > > Chip Louie > * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
