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Teleconverters
I am looking for opinions from teleconverter users ...
Minolta Maxxum APO 1.4x AF Tamron Maxxum 1.4x AF Sigma Maxxum EZ APO 1.4x AF used with Sigma AF 400mm f5.6 and Canon Extender 1.4xA used with Canon FD 400mm f4.5 I would like to here some real life experiences with these or other teleconverters. |
#2
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Teleconverters
In message ,
Mister_K wrote: I am looking for opinions from teleconverter users ... Minolta Maxxum APO 1.4x AF Tamron Maxxum 1.4x AF Sigma Maxxum EZ APO 1.4x AF used with Sigma AF 400mm f5.6 and Canon Extender 1.4xA used with Canon FD 400mm f4.5 I would like to here some real life experiences with these or other teleconverters. I don't know any of these by name (I have the Canon 1.4x II and the Tamron SP 2x (which is exactly the same TC as the Kenko Pro 300 2x), and they both work great, as long as you use manual focusing, and the MTF of the lens used is hugging the 1.0 mark. If the MTF is much less for the aperture used, you are going to get emptier magnification. IOW, teleconverters are ony useful with very sharp lenses. They are most useful also on mediums with medium or lower resolution; if you use a low-speed, high-res B&W film, you are probably better off taking the shot without the converter, and just blowing it up more, without sacrificing your photon budget to the needs of the converter. If you are shooting medium speed film or a digital SLR, then the converter is more likely to catch detail that would not be captured without it, and the larger the grain or pixel pitch, the more magnification you can use with a TC. -- John P Sheehy |
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