An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: Auto Function Failed
It could be a communication error between the flash and the camera. Check the shoe foot for any damage or stuck pins. All of them must make proper contact with the hot shoe on the camera to get full auto/TTL, same for the shoe of the camera, bent? dirty contacts?
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Depends on the zoom length. If you check exposure at zoom 18 mm then zoom to (lets say) 100 for the final picture the flash will zoom concentrating the flash power as well; the flash gets stronger. This is all explained in the SB-800 manual. On a zoom such as the 18-200 the more you zoom the smaller the f/stop. You are better off with a zoom that maintains its f/stop through the entire zoom range. That way when you check exposure at 18 mm lets say f/2.8 then zoom in it will maintain the same f/stop. Myself I am not a big fan of zooms especially ones when zoomed change to a smaller f/stop.
It sounds like you're trying to use the SB-600 off camera, as a slave flash. While the SB-600 does indeed have slave capability, the D40 does not have the ability to function as a commander. Thus, the SB-600 is being triggered by the D40's pre-flash.
As stated above, the D40 does not function in commander mode. You can mount an SB-800 or SB-900 flash unit, which will function as a commander as well as a flash. Or you can mount an SU-800 commander unit.
Alternatively, you can switch the D40 to manual flash mode so as to eliminiate the preflash. However, you will then have to calculate the proper exposure yourself.
1) i-TTL: TTL flash control by 1,005-pixel RGB sensor, built-in flash, SB-800, SB-600, SB-400: i-TTL balanced fill-flash and standard i-TTL flash 2) AA (Auto Aperture-type) flash: Available with SB-800 used with CPU lens 3) Non-TTL Auto: Available with Speedlights such as SB-800, 28, 27, and 22S 4) Range-priority manual flash; available with SB-800