Many one touch are really varifocal & not true zooms & you have to refocus everytime you change focal lengths. Also when using CP's, the front barrel rotates....
Dennis covered the technical part. There is also the ergonomic consideration. Once used to it a two touch can be pretty quick but if your used to one touch...
Hi, anyone used one of these? How does it compare to the Canon 100mm F4 macro? cheers, Marc. Marc Davison ... http://aurora.homedns.org ... Outgoing mail is...
Damn! I'm playing catch up with my message and came across this one. I would have liked to have participated in this, because I know how great it is to get...
Can I can certainly recommend the Canon 35-105 zoom - it would serve you for most of your photographic work. I have had mine for nearly 20 years and it is...
... with ... any ... as the ... the ... lost ... http://www.srbfilm.co.uk ... I have got one and it fits perfectly but I have not had chance to try it yet. I...
... Don't worry about not getting to help with Todds package He got more then he could use. Liz has given me a couple of other addresses for service people in...
If you had to choose between the Canon FD 75-200 f4.5 or the Vivitar Series 1 70-210 f3.5 (serial # 37######), which one would you keep? Both are in great...
Just won an E**y auction that includes one of these zooms, in reportedly MINT condition. Didn't bid because of the zoom but shortly I'll have it. Anyone know...
Obviously, being snow-bound in the Wash DC area is affecting my brian. I just won an auction for a T-70. Not sure why. Don't have it yet but I've read what...
When I had this decession to make aI kept the 75-200mm f4.5nFd for a couple of reasons Lighter weight Smaller used the same size filters as everything else...
Don it's a great little prime zoom ver nice optically. The reason for the 52mm filter and BW-58C hood is the front element recesses into the barrel as it zooms...
Don the T70 T90 both require a T3 electonic release that screws into the T3 socket OR a T3 to std cable release adapter that screws into the T3 socket and then...
Can, I have the 35-105 f.3.5 and the Canon 35-70 3.5-4.5. The lens I like is the Vivitar Series One 35-85 2.8 constant. It is just as good as the 35-105...
Gerardo, I have a pre-S.C. 300/5.6BL. As I recall, from the date code, it was produced at the same time as my CN 50/1.4. It has the rectangular baffle at the...
I added another shot taken with my Tamron SP 500. Its a long shot, more like what a tele would be normally used for. No comparison shot with the 400 though,...
I'll throw another question, please bear with me, All the P* focusing screens measures the light from 12% center of the area and all S* screens measures the...
Lance I can save you the time your 400mm f4.5 is going to be sharper then the 300mm f5.6 it is one of the sharpest 400mm lens ever made from the numbers I...
Ed you been sneaking around my neighborhood. I could show you a dozen places within a couple of miles of my house to take just such a photo. Granted our snow...
Nope, not unless you've blown off Oregon for Colorado. Thats the view out my back door. Lots of red barns and freezing horses around here too! :) Ed...
Roughly yes the partial screens measure from the rectangular area in the center of the screen the spots from the center spot area of the screen. You can...
Another difference is that 1 touch zooms, when pointed sharply up or down and not being held onto, may change their zoom setting from their own weight; the...
Well I finally got it - and what a beauty that T-90 is! It's not MINT but I would classifiyt this as EX+, the only cosmetic wear is a couple of ofaint...
Don, I have the 28-55 f3.5-4.5, which also takes 52mm filters and the BW-58C hood, and yes, that's the way it works. The bad news is that it also takes a...
I've read that this is one of the sharpest macro lenses ever made, on a par with Zeiss glass. I personally own the 90mm f2.5 version, which was noticeably...
I've read that varifocals are sharper than true zooms. Eric, what light can you shed on this opinion? I don't find the refocusing onerous with my Series 1,...
I guarantee that the Canon is lighter; the advantage of the S1 is that it can serve as a handy club fully capable of stunning angry rhinos without damage, or...
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