Julian: Extension tubes are not lenses, and the 1200mm lens is not a production lens, it's built to order. I"ll stick to my original comment - you can put EVERY production lens on any body and it will work. Notice the words extension tubes and flash aren't in there anywhere. I don't put my lenses in a museum case either, but I sure don't want to have to rebuy them in 2 or 3 years because they won't work on my next digital body. At a generation a year, how long will it take to obsolete the need for EF-S lenses? Are you planning to stick with your 20D for 4-5 years?
I should also mention that I kept my 10D when I bought the 20D, so it makes even less sense for me to buy s lens that only works one one of them and none of the film bodies (although I'm down to only one of those!). Tom P. PS - Lenses that don't return distance information work fine on non-TTL bodies like the D30, D60, 10D, 1D, and 1Ds. > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of > Julian Loke > Sent: Wednesday, December 08, 2004 6:30 AM > To: [EMAIL PROTECTED] > Subject: Re: EOS Upgradng Extension Tubes > > > There are most assuredly accessories unique to specific bodies, but > > every production EF lens is compatible across the board > with every EOS body made. > > My point is that there isn't any reason to buy lenses that > aren't part > > of that compatibitly. There are plenty of alternatives from > Canon and > > other makers that are. In 5 years time, the EF-S lenses will be > > novelties like the AF lenses Canon made for it's T90 body. > So why waste money on them? > > Are you sure that "every production EF lens is compatible > across the board with every EOS body made"? > > Did you forget that Canon EF extension tubes are not fully > compatible with the EOS 600, 630, 700, 750, and 850. > http://bobatkins.com/photography/eosfaq/eosfaq24/9miscellany.html > > There are still people shooting with EOS 600 and 630 bodies! > > And that the Elans are not compatible with the EF 1200mm L: > "No vignetting with EF 600mm f/4L IS USM or shorter lens" > Page 99 http://eosdoc.com/manuals.asp?q=33 (EOS 33 manual) > "no mirror cut-off with EF 600mm f/4 or shorter lens" > Page 95 http://tinyurl.com/4lxlx (Elan 7N manual) > > Also, many lenses do not return distance information for > E-TTL II flash metering. > http://bobatkins.com/photography/eosfaq/eosfaq24/4lenses.html > http://tinyurl.com/65yr7 > > Do you think they too be novelties when there are no longer > any TTL EOS bodies made? > > I buy a lens to making photographs NOW, not to store in a > glass case in a museum. This includes EF-S lenses and my EOS > 20D, which I will keep shooting until they or I die. > > Cheers > Julian Loke > > > * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
