Does anyone know if my SB-24 is compatible with my D5100. I don't know what the compatibility is between them. I can't seem to get it to work with my D5100. The darn pop up light keeps trying to pop up also.
#1. "RE: SB-24 Compatibility" In response to Reply # 0
For the most part, not compatible. The SB-24 will function only in A or M mode (on the flash). In particular, TTL does NOT work, because it depends on being able to read the light being reflected off the film emulsion during exposure. Obviously there is no film, and in fact the sensor reflects light in an entirely different way. So manual mode or "auto" only. Auto uses a sensor in the flash to guide exposure, and it works reasonably well for moderate focal lengths - say, about 20mm to about 45mm on DX. Wider or longer than that and what the sensor reads is so different from the FOV that the lens sees that you usually get an incorrect exposure.
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!
#2. "RE: SB-24 Compatibility" In response to Reply # 0
The SB-24 was designed for film bodies and incorporates Film TTL flash control. The D5100 requires a Speedlight with i-TTL flash control. Unfortunatly they are two completely different and incompatible flash control systems. As Brian wrote above, the SB-24 can be used in non-TTL Auto flash mode or Manual flash mode with the camera set in Manual exposure mode. Good Luck and Enjoy your Nikons!
#4. "RE: SB-24 Compatibility" In response to Reply # 3
Note, I did not write Manual exposure mode "only".
I think it is much easier to learn Manual flash mode or even non-TTL Auto flash mode when using Manual exposure mode. After all that is the way we learned when cameras only had Manual exposure mode (sometimes without a meter built into the camera) and flash units only had Manual flash mode.
With the camera set in Manual exposure mode, it is easy to set the aperture based on the flash to subject distance based on the information displayed in the calculator built into most speedlights.
Since the OP is a beginner just starting out, it is reasonalble to expect that if Program mode was suggested they would assume the camera capture a well exposed image automatically.
Expierienced users will know that when using Manual flash or even non-TTL Auto flash mode with the camera in P,S, or A exposure modes that the camera will meter only for the ambinent light as if the flash was not on. Then they will use exposure compensation or adjust the flash power in order to prevent the flash from overexposing the image when it fires. Good Luck and Enjoy your Nikons!
#5. "RE: SB-24 Compatibility" In response to Reply # 3
Hatboro, Pa, US
>> with the camera set in Manual exposure mode. > >Really? Did that limitation get imposed recently? My ancient >D100 can use similar flashes in Auto or Manual flash mode but >with any P/S/A/M exposure mode set on the camera.
The D5100 is a different animal. With one of these older flashes the D5100 won't even fire the shutter sometimes unless you are in manual mode on the camera. I have an old SB-15 that works beautifully when in A mode and the camera is in manual.