nikon dslr camera lens reviews image
Morgan
Is there a way (or multiple ways) to adjust the aperture using a Nikon DSLR camera while taking video? I have a D7000 and a wide assortment of lenses. Many old lenses I realize have adjustable aperture rings on the lens itself which seems to be a feature incompatible with newer cameras [unless f-stop is set to 22] and lacking from newer lenses (note: I am completely unaware of any adapters that offer a means of making this option compatible.)
I know there are some specific 3rd party lenses out there that have aperture rings on them so you can adjust your depth of field range/brightness while taking video but am at a loss of how to find them.
Any hints, suggestions, techniques, links, companies, lens models etc... would be greatly helpful.
{Incase it wasn't clear, my main objective is to find a way to broaden/narrow my depth of field while taking video using an adjustable aperture ring on the camera's lens}
Thank you all in advance for any input : )
Answer
When shooting video, the only control of the exposure are the following
* adjust the lens aperture
* adjust the ISO of the camera
* add or subtract light from the scene
If you want to decrease the depth of field by opening the lens, you will have to reduce the sensitivity of the sensor or add an ND filter to the lens. Usually it is very difficult to reduce the actual amount of light in a specific scene
If you want to increase the depth of field, you need to close the lens aperture down until you have just the right amount of depth of field. With less light reaching the sensor, you will either have to up the ISO of the sensor or add more light to the scene.
Whether you use an actual aperture ring or control the depth of field using the camera control, really does not matter much.
You are now beginning to see just one of the drawback of trying to use a dSLR camera with a video "
feature" can be vexing.
What you may want to read before you start spending a lot of money on accessories to make your fine D7000 into a usable video camera. These problems will be encountered no matter what dSLR you use
http://www.luminous-landscape.com/reviews/camcorders/cam-cam.shtml
http://www.luminous-landscape.com/techniques/3_years_later_dslr_video_one_mans_perspective.shtml
When shooting video, the only control of the exposure are the following
* adjust the lens aperture
* adjust the ISO of the camera
* add or subtract light from the scene
If you want to decrease the depth of field by opening the lens, you will have to reduce the sensitivity of the sensor or add an ND filter to the lens. Usually it is very difficult to reduce the actual amount of light in a specific scene
If you want to increase the depth of field, you need to close the lens aperture down until you have just the right amount of depth of field. With less light reaching the sensor, you will either have to up the ISO of the sensor or add more light to the scene.
Whether you use an actual aperture ring or control the depth of field using the camera control, really does not matter much.
You are now beginning to see just one of the drawback of trying to use a dSLR camera with a video "
feature" can be vexing.
What you may want to read before you start spending a lot of money on accessories to make your fine D7000 into a usable video camera. These problems will be encountered no matter what dSLR you use
http://www.luminous-landscape.com/reviews/camcorders/cam-cam.shtml
http://www.luminous-landscape.com/techniques/3_years_later_dslr_video_one_mans_perspective.shtml
Looking to getting into photography (mainly to take pictures of my kids) Is this a good start out camera?
Holly S
Not looking to buy anything really expensive this will be more of a hobby not for professional use, but I would like to get some professionalish looking pictures, something more of the quality that I get with my plain sony cybershot.
Nikon D3100 14.2MP DSLR Camera with 18-55mm VR Lens, 3" LCD, HD Video
http://www.walmart.com/ip/Nikon-D3100-14.2MP-DSLR-Camera-with-18-55mm-VR-Lens-3-LCD-HD-Video/15222286
It has pretty good reviews but I really would like to hear from someone who knows about photography vs the average mom who takes pics of her kids.
Answer
Yep, the Nikon D3100 is an excellent entry level DSLR, and combined with the kit 18-55mm lens (equivalent to 27-82mm lens on a film/full frame digital camera) will cover a decent range.
However, you should realise that the reason it is selling for so cheap at the moment is because it was replaced by the Nikon D3200 last year and thus stores are sellign out stock to bring the replacement model in. Still, it is a very good camera and has all the capabilities you will need for your purposes. A word of advice, if it comes with free training be sure to use it! For someone new to DSLRs that intro training is superb, explaining not just the functions of the camera but some of the theories behind the way cameras work to let you start utilising the camera to its best rather than just relying on the auto mode
Yep, the Nikon D3100 is an excellent entry level DSLR, and combined with the kit 18-55mm lens (equivalent to 27-82mm lens on a film/full frame digital camera) will cover a decent range.
However, you should realise that the reason it is selling for so cheap at the moment is because it was replaced by the Nikon D3200 last year and thus stores are sellign out stock to bring the replacement model in. Still, it is a very good camera and has all the capabilities you will need for your purposes. A word of advice, if it comes with free training be sure to use it! For someone new to DSLRs that intro training is superb, explaining not just the functions of the camera but some of the theories behind the way cameras work to let you start utilising the camera to its best rather than just relying on the auto mode
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