18

You can run the camera directly off AC power with two pieces of gear. You need a camera-specific "dongle" that basically fakes being the battery in the battery compartment. This then connects to the other part you need, which is the AC-to-DC adapter. For the D3100, you need the Nikon EP-5A power supply connector and the Nikon EH-5b AC adapter. According ...


13

What you are going wrong is not giving the camera enough latitude. You fixed the aperture and ISO, so all the camera can do is set the shutter-speed and flash power. It must be not as low-light as you think because most often you would get an under-exposed image doing what you are doing. The camera has a shutter-speed range it can use with the flash. The ...


9

Has anyone had this problem with the Albinar lens? There are two versions of the Albinar 500mm f8. One is a fixed aperture mirror lens and one is a variable aperture "Preset" lens. Which version do you have? They are both actually made by Samyang and also sold under many other names. (Opteka, Bower, Kalimar, Phoenix, Rokinon, Quantaray, Vivitar, Bell &...


8

Using the dpReview lens widget it appears the AF-S DX Nikkor 18-55mm f/3.5-5.6G VR is sharpest at f/8 for most focal lengths. There are some points in the zoom range that center sharpness is better at f/5.6 but usually at a much greater expense to edge sharpness. At DxO Mark, the results for the AF-S DX Nikkor 18-55mm f/3.5-5.6G VR are similar to those at ...


8

Unfortunately not, as this lens does not have a built-in AF motor, and neither do the D3X00 or D5X00 camera families from Nikon. Your camera will only have autofocus with Nikon lenses marked AF-S, or compatible lenses from other makers that include built-in focusing motors.


8

Unfortunately, that photo is much too far gone for any software to be able to clean it up. One of the big advantages of digital over film is the ability to instantly review photos - get in the habit of using it.


7

Most tethering softwares that list support for Nikon cameras do not include the D3xxx series. Most of the Dx, Dxx, and some of the D7xxx and D5xxx bodies are at least partially supported. The D3100's firmware or hardware may limit this capability. If all you want to do is view the output of your camera without controlling it, you just need to connect it to ...


7

If the issues with your current setup are low constrast and looking washed out, then a new lens isn't going to help. A polarizer will help in some cases when there is some blue sky in the picture or a rainbow, but otherwise it won't make much difference either. What will matter is post processing. Clouds are all quite bright, even the "dark" ones. The ...


6

Despite the D90 being a full two years older than the D3100 I think it still holds up against the newer model. The D90 does exposure and white balance bracketing, not achievable with the D3100. Also the screen on the D90 is superior, with 920,000 dot resolution vs the 230,000 of the D3100. One area the D90 falls down is in video - if you want to use ...


6

Is Autofocus working at all? Obvious question first. Is the lens attempting to focus at all? If you switch the lens to manual focus, move the focus to infinity (or to closest focus), then switch back to autofocus and point at something and half-press, does the lens attempt to focus? Need to know if it's "hunting", or just not moving at all. Autofocus ...


6

You have almost certainly set a monochrome "picture control". This is probably showing as an "MC" towards the lower-right of the LCD - if it is, adjust this back to SD ("standard"). (That's for a camera running in English; if you're in a different language, the abbreviations may be different, but the principle remains the same).


6

The primary problem here is simply one of exposure. The camera's metering system is not really smart — it doesn't know the difference between a white blanket that's dimly lit and a gray blanket that's brightly lit. It just assumes that everything is somewhere in the middle. Your scene contains a lot of white. This fools the camera's assumption about the ...


5

Most SLR's have removable/replaceable focusing screens, and I gather the D3100 is no exception. There are instructions here for removing and cleaning your focusing screen. Be aware the the screens are usually plastic and quite fragile. On the other hand, if you really screw it up, a new one won't set you back all that much.


5

I would say don't bother. It won't appear on your photographs and will only bother you if you focus on it (pardon the pun). if it is really bad then give it a puff with a rocket blower, if that fails then send it to a proper repair shop otherwise I feel you're in danger of causing damage.


5

As you have watched the shutter getting stuck, it seems fair to assume this is indeed a stuck shutter. Take it to a Nikon authorised repair shop: not something you want to tackle yourself really.


5

What you are seeing is called motion blur. Simply stated, it is blur caused by motion during exposure. Horses obviously move and their legs will show even more motion. The solution to this is to use a faster shutter-speed. You can control the shutter-speed in Shutter-Priority mode or in Manual mode. For the former you will get a metered exposure which will ...


4

I really wouldn't call that an upgrade - the D3100 is technically a superior camera - faster processor, higher pixel count, better sensor tech, the only things in the (quite old) D90 are the AF motor and the screen resolution. So assuming you dont want to use older lenses without internal AF drive, then yes, this would be a downgrade. http://en.wikipedia....


4

You could try digiCamControl. One of its advanced features is Live View via computer display. However, the D3100 may not support that feature. The Nikon SDK allows you to capture Live View images as JPGs. So a program could be written to loop, capture and display those JPGS. Someone has written a C# wrapper for the SDK which gives an example of this (...


4

There are a few things I would try first: If you normally shoot at low ISO, the camera is probably using more noise reduction than it was before. See if there is an option to turn off in-camera NR at lower ISO settings. Normally when updated firmware is installed, all of the camera settings reset to the default values. You may have had in-camera sharpening ...


4

If you are concerned about tampering, you really need the file to be signed cryptographically; Nikon doesn't do that. If your concern is simply that a download might be corrupt (or that your flash card might have an error that corrupts the file), don't worry. The firmware has an internal checksum checked by the camera's firmware updater. (Details for some ...


4

When the light gets dim enough there comes a time when you have to give up shooting sequences of fast moving objects coming towards you and instead pre-focus on a spot and wait for the subject to hit the mark. Cross ties work pretty good for locking focus on a point the train is about to be. You also gain the advantage of getting the one shot when the train ...


4

Because the 500mm F/8 mirror lens from Samyang/ Rokinon/ Bower/ Walimex/ Falcon/ Albinar/ Opteka/ Quantaray/ Bell & Howell/ whatever else they're calling it this week is a fixed aperture lens, as are most mirror lenses with a secondary mirror in the middle of the objective. In other words your lens has no adjustable aperture. Just as a prime lens can't ...


4

Yes, it will fit, but AF won't work (all D lenses rely on an AF motor in the camera body and the D3100 doesn't have one), so if you buy it, you'll only able to use it as a manual focus lens.


4

The main requirements for a passport photo, in terms of photographic qualities, are that your face be evenly lit (no shadows) and that your whole face be in focus. For even lighting, assuming you don't have studio lights, taking the photo outside, in the shadow of a building, in the daytime works well, as does taking it in a room with bare white walls and ...


4

If the camera was modified to pass mostly IR light, then this is normal. You need to convert the images to monochrome. Take a picture of foliage outside. Then desaturate completely. If the foliage is very white giving the image a surreal look, then the filter is working properly. There are also IR camera modifications that leave more visible light, if you ...


3

Whilst Itai's answer is very good - I would also be sure to check that you have not got flash power compensation turned up, and also that you have not got exposure compensation turned up by mistake.


3

That is completely normal. The camera has no idea what the effect of the flash will be and cannot preview it. The effect of flash is extremely variable based on distance and reflectance. For example if you have an object 1m away and one 2m away, the one 2m away gets 4 times less light than the one 1m. Plus, how much it reflects back depends on the object's ...


3

If you only need standard definition output, cheap capture cards can be readily had for under $50 including a double RCA cable and a jack to RCA converter. An HDMI-based solution will be obviously more expensive, but they're almost equally available on the market.


3

D3100 cannot support the feature that you want to implement, but the new Nikon D3200 has change the image of the D3xxx series. with the help of WU-1a Wireless Mobile Adapter, you can connect it to the DSLR, to automatically send your images to your Smart phone and even use your smartphone to remotely capture images from D3200 and D5200. I'm not sure if it ...


3

i used Digicam Control on my Nikon D3200 and it works ! by the way, it works for Nikon D3100 too. You can see supported camera for Digicam Control here


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