Nikon D3100 won't flash

What do you mean by flash mode?
Have you read the manual how to use the camera?
If nothing from there helps, try connecting it via USB and check if there is firmware update. If even that doesn't help, try acessing menu and doing hard reset from there.

Yes, as long sa the lens can fit the bayonet. But it can't focus, because there are no AF motors in Nikon D3100 and AF 70-300mm f / 4-5.6 - G. And Nikon lens with AF is without AF motor. Lens marked with AF-S have focusing motor

There is a button on the left side of the camera with lighting bolt symbol push it at the same time helping the flash up. Keep the lens cap on when pushing the button.

did u tryed to factory reset it?

I suggest you return it to the shop for a warranty repair or replacement. If you try to fix it yourself you may void your warranty.

This often depends on the shooting mode you are using. It is often on a selection wheel. Say you are in Fireworks mode the flash will not fire. If you get out of a special mode back into normal camera I am pretty sure your flash will not be greyed out.

AF tubes will let you focus manually, so you don't lose anything by getting AF tubes (except for additional money, perhaps). However, most close-up work requires manual focus anyway due it the very limited depth of field, so you won't gain much by getting AF tubes.

Personally, I've never missed the AF capability when using my manual tubes with my Nikons.

That depends on what you compare it with.

It's larger and heavier than a point-and-shoot camera, but it's smaller and lighter than an high-end DSLR.

It has a smaller sensor than a high-end DSLR, giving poorer results, especially in low-light situations. It has a larger sensor than a point-and-shoot camera, giving better results, especially in low-light situations.

It's more complex than a point-and-shoot camera, requiring more time to learn how to use it well. It's simpler than a high-end DSLR, requiring less time to learn how to use it well.


It doesn't give you as much control over picture-taking settings as a high-end DSLR will, and many of the settings require going through menus instead of simple buttons and dials. This can make the D3100 slower in operation. It gives you more control over picture-taking settings than a point-and-shoot camera, and provides access to some of those controls through buttons and dials, instead of going through menus. This can make the D3100 quicker in operation.

The D3100 won't focus with lenses without an autofocus motor. Higher-end DSLRs will autofocus with any autofocus lens.

No two camera models are identical. Only YOU can decide which features are most important to YOU. How important is the weight of the camera? Do you want a camera that's easy to learn, or one that's easy to control?

Go to your settings when your in shooting-mode (Press the 'i' button on the bottom left).
There, change your focus mode from MF to AF-S or AF-C or AF-A.
Should work.

The answer to your question can be found at...

This website

All but the very best flashes can not recycle atthat flash rate. For burst mode, you probably want to use focus modeAF-C or AF-A.
Morris

Page 73 in the manual; If the flash fires in L or H mode (pg. 65), only one picture will be taken each time the
shutter-release button is pressed. The shutterrelease may be briefly disabled to protect the flash after it has beenused for several consecutive shots. The flash can be used again after ashort pause.
The flash can take several seconds to recharge andduring that time the shutter is disabled. NR will also reduce thenumber of frames per second that you can take, and of course yourshutter speed has to be fast enough to allow for 4.5 fps.
In AF-S the shutter won’t fire unless the camera has achieved an in-focus state and the focus is locked.
In AF-C the camera continually focuses, but that isnot the same thing as being in focus. As you move the camera or yoursubject moves, the in focus state will come and go, but the camera willattempt to continuously re-focus. BUT, the shutter will fire even ifwhen the AF system has lost the in-focus state and the picture is outof focus.
In the D90 manual it indicates that the AF-A modewill only fire when the green in-focus light is on, just like in AF-S.The problem is that you probably won’t get 4.5 fps unless both thecamera and the subject are stationary and no time is lost between shotswhile the camera re-focuses.
--
Brooks
http://bmiddleton.smugmug.com/