> "David Ruether" <rpn1@no-junk.cornell.edu> wrote in message

> news:bkn0up$n54$1@news01.cit.cornell.edu...

> > Teleconverters can be more useful than at first apparent.

> > With my 28mm f2.8 AIS Nikkor, I can use its sharp very

> > close focusing image with a good 2X converter to get a fairly

> > good macro lens; with my 16mm fisheye used with a good

> > 1.4X converter, I get a very wide lens that is more kind to

> > rounded forms like people at the frame edges (and to verticals

> > of distant buildings) than a standard super-wide is; with flash

> > macro work, I can increase magnification with no apparent

> > losses; with my fast 80-200 f2.8 zoom, a good 1.4X makes

> > it go to 280mm with little loss in quality (particularly if stopped

> > down one stop); with my 85mm f1.8 or 2, I get a pair of FLs

> > with the addition of a very compact 1.4X; with long, fast teles,

> > one lens can become the basis of a three-lens set with the

> > addition of good 1.4X and 2X converters (and in some cases,

> > these can be combined, for a fourth FL); with a PC lens, the

> > displacement is multiplied by the power of the converter,

> > permitting otherwise impossible perspectives (like placing the

> > horizon line outside the frame while maintaining alignment

> > with a tall building). With the best converters, combined

> > with good lenses that are compatible, generally stopping

> > down to f4-5.6 is required with a 1.4X for good results,

> > and to f5.6-8 with a 2X - but to these stops must be added

> > the one stop loss of the 1.4X and the two stop loss of the

> > 2X...

> > David Ruether

"Meryl Arbing" <marbing@sympatico.ca> wrote in message

news:gn4cb.2088$PT3.351149@news20.bellglobal.com...

>

> With good technique you can get more than acceptable results. This shot:

> http://www.photo.net/photodb/photo?photo_id=1735716&size=lg

> was done with a 500mm/f8 mirror lens and a 2x teleconverter...(essentially

> making it a 1000mm/f16) and, to make matters more interesting, the camera

> was handheld!

Yes, it looks nice!

This one (500mm mirror + 2X also) has been reproduced

full-page tabloid-size successfully - and it was also hand-held...;-)

www.David-Ruether-Photography.com/web_photos/commercial_photos/travel_brochure/ba23.jpg

--

David Ruether

d_ruether@hotmail.com

http://www.David-Ruether-Photography.com