michael_bradigan Posted January 2, 2003 Share Posted January 2, 2003 Hi all...happy new year. A quick and probably silly question for y'all. I recieved a new F100 for Christmas from my very very cool father. Needless to say, I am a happy camper. A quick question about using non-CPU lenses and converters for you. I have a 80-400VR that I want to use a TC-14A teleconverter on. When I couple them, the display, of course, shows F--. Now, I have to change aperture using the ring...ok, no problem. But, at F5.6 with a 1.4 teleconverter, the max aperture is F8. My question is this: Do I have to set the lens aperture to F8 manually, or can I just leave it at the minimum (F5.6) and will it automatically default to F8? If I put it at F5.6 will the meter be misguided? Thanks for your help guys, and again, I apologize if this is a silly question, but have searched and didn't find any answers to this one...Thanks, MDB, Okayama, Japan. Link to comment Share on other sites More sharing options...
erick_lamontagne Posted January 2, 2003 Share Posted January 2, 2003 Leave it at 5.6. Link to comment Share on other sites More sharing options...
michael_bradigan Posted January 2, 2003 Author Share Posted January 2, 2003 Right on. Thanks for your help Erick. I appreciate you taking the time to help me out. Happy Shooting! Link to comment Share on other sites More sharing options...
rick_falck Posted January 3, 2003 Share Posted January 3, 2003 If you get the Kenko 1.4 PRO AF TC, you will AF, metering, and VR!! Link to comment Share on other sites More sharing options...
ilkka_nissila Posted January 5, 2003 Share Posted January 5, 2003 Also note that the F100 may require an exposure compensation when used on a lens without CPU (and this includes the use of AI teleconverters such as the TC-14A). Put the camera on tripod, M exposure mode, and spot meter a gray card with the plain lens. Take a picture on slide film. Now, put on the teleconverter, don't move the tripod, and adjust the exposure until you get the meter reading. Take another picture. Use the same focal length for both pictures! If the gray cards in the slides look different in tone, then you should figure out how much different they are, and compensate by that amount when you're using the camera with the teleconverter. There may be a difference of 1/2 stop, which can be significant on slide film. Best regards Link to comment Share on other sites More sharing options...
ilkka_nissila Posted January 5, 2003 Share Posted January 5, 2003 Ups, I should have said "Use the same zoom setting" and NOT the same focal length!!! Link to comment Share on other sites More sharing options...
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